cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effective Mean Field Approach to Kinetic Monte Carlo Simulations in Limit Cycle Dynamics with Reactive and Diffusive Rewiring
Creators: name: Panagakou, E.
name: Boulougouris, G. C.
name: Provata, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dynamics of complex reactive schemes is known to deviate from the Mean Field (MF) theory when restricted on low dimensional spatial supports. This failure has been attributed to the limited number of species-neighbours which are available for interactions. In the current study, we introduce effective reactive parameters, which depend on the type of the spatial support and which allow for an effective MF description. As working example the Lattice Limit Cycle dynamics is used, restricted on a 2D square lattice with nearest neighbour interactions. We show that the MF steady state results are recovered when the kinetic rates are replaced with their effective values. The same conclusion holds when reactive stochastic rewiring is introduced in the system via long distance reactive coupling. Instead, when the stochastic coupling becomes diffusive the effective parameters no longer predict the steady state. This is attributed to the diffusion process which is an additional factor introduced into the dynamics and is not accounted for, in the kinetic MF scheme.
description: 8 pages, 6 figures
A Library for Visualizing SHACL over Knowledge Graphs
Creators: name: Alom, Hany
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Knowledge Graph
subject: SHACL
subject: Ontology Visualization
subject: Wissensgraph
subject: Ontologie-Visualisierung
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: In a data-driven world, the amount of data currently collected and processed is perhaps the most spectacular result of the digital revolution. And the range of possibilities available has grown and will continue to grow. The Web is full of documents for humans to read, and with Semantic Web, data can also be understood by machines. W3C standardized RDF to represent the Web of data as modeled entities and their relations. Then SHACL came along to present constraints in RDF knowledge graphs, as a network of shapes. SHACL networks are usually presented in textual formats. This thesis focuses on visualizing SHACL networks in a 3D space, while providing many features for the user to manipulate the graph and get the desired information. Thus, SHACLViewer is presented as a framework for SHACL visualization. In addition, an evaluation for the impact of various parameters like network size, topology, and density are studied. During the study, execution times for different functions are computed; they include loading time, expanding the graph, and highlighting a shape. The observed results reveal the characteristics of the SHACL networks that affect the performance and scalability of SHACLViewer.
Higginsia lunata Carter 1885
Creators: name: Morrow, Christine
name: Cárdenas, Paco
name: Boury-Esnault, Nicole
name: Picton, Bernard
name: Mccormack, Grace
name: Soest, Rob Van
name: Collins, Allen
name: Redmond, Niamh
name: Maggs, Christine
name: Sigwart, Julia
name: Allcock, Louise A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Axinellida
Stelligeridae
Higginsia
Higginsia lunata

description: Higginsia lunata Carter, 1885
M a t e r i a l e x a m i n e d: H o l o t y p e B M N H P. P.H. ’86:12:15:138 Brit.Mus.Sp. 68, (Carter, 1885, p. 358), 35 m, South Australia.
Remarks: A re-examination of the type specimen of Desmoxya lunata using SEM revealed that the raphides are acanthose (Fig. 19D–G), suggesting that it might have affinities with Tedaniidae. The raphides are unusual; they appear to occur in at least three length categories and are ‘compound’. They consist of several slightly overlapping raphides glued together, whereas in Desmoxya pelagiae the raphides are spined mostly at the ends and are in trichodragmas with individual raphides single, not compound. The acanthoxea in Desmoxya lunata are diactinal (Fig. 19C), whereas in Desmoxya pelagiae they are monactinal. In other respects, the spicules and skeletal arrangement are closest to those of Desmoxya pelagiae. We therefore take Desmoxya pelagiae as a representative of Desmoxya and propose the transfer of Desmoxya from Heteroxyidae: Axinellida to Desmoxyidae: Poecilosclerida.
description: Published as part of Morrow, Christine, Cárdenas, Paco, Boury-Esnault, Nicole, Picton, Bernard, Mccormack, Grace, Soest, Rob Van, Collins, Allen, Redmond, Niamh, Maggs, Christine, Sigwart, Julia & Allcock, Louise A., 2019, Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae), pp. 31-81 in Zoological Journal of the Linnean Society 187 on page 70
title: Atti del XXV Convegno Nazionale di Agrometeorologia. L’Agrometeorologia per la gestione delle risorse e delle limitazioni ambientali in agricoltura
Creators: name: Ventura, Francesca
name: Cola, Gabriele
name: Di Cesare, Francesca
Publisher: name: Dipartimento di Scienze e Tecnologie Agro-Alimentari - Università di Bologna
Year: 2023

description: La razionale gestione delle risorse ambientali e naturali ha nella modellistica agrometeorologia il suo supporto di base. Del resto, le note e tristi vicende che negli ultimi giorni hanno duramente interessato i territori dell’Emilia-Romagna e delle Marche, impongono alla comunità scientifica e ai gestori del territorio un’attenta valutazione degli effetti che il cambiamento climatico ha sul territorio. Pertanto, i modelli agrometeorologici sono uno strumento essenziale per il processo gestionale e decisionale sia nell’ambito dei sistemi colturali che in quello zootecnico. Numerosi sono gli studi sui meccanismi e sulle relazioni che regolano le dinamiche ambientali e produttive del territorio stesso per descrivere le sue reali potenzialità produttive e quindi, pianificare e razionalizzare l’uso delle risorse utilizzate nel processo produttivo. La caratterizzazione meteorologica è uno dei primi passi da intraprendere per la conoscenza di un territorio, valutando non solo l’andamento dei valori medi dei principali parametri misurati al suolo, ma soprattutto la loro variabilità spaziotemporale. AIAM 2023 è l’appuntamento annuale tra i ricercatori e i tecnici dei servizi agrometeorologici regionali per presentare i risultati degli studi e dei progetti di ricerca per la gestione degli stress abiotici, dei mezzi di previsione e gestione delle avversità che interessano il mondo agricolo, con riferimento alle politiche di sviluppo agricolo del PSN 2023-27.
Saxifraga dichotoma Ehrh.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. dichotoma Ehrh. Adventiv. l: St-Maurice, bei den Militärställen (Marietan 1919). - 2: Saillon, Ödland in der Rhoneebene gegen die Rhonebrücke (Becherer und Thommen 1938); JVtontana(Binz 1929).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Bubble formation during the collision of a sessile drop with a meniscus
Creators: name: Keij, Diederik L.
name: Winkels, Koen G.
name: Castelijns, Hein
name: Riepen, Michel
name: Snoeijer, Jacco H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The impact of a sessile droplet with a moving meniscus, as encountered in processes such as dip-coating, generically leads to the entrapment of small air bubbles. Here we experimentally study this process of bubble formation by looking through the liquid using high-speed imaging. Our central finding is that the size of the entrapped bubble crucially depends on the location where coalescence between the drop and the moving meniscus is initiated: (i) at a finite height above the substrate, or (ii) exactly at the contact line. In the first case, we typically find bubble sizes of the order of a few microns, independent of the size and speed of the impacting drop. By contrast, the bubbles that are formed when coalescence starts at the contact line become increasingly large, as the size or the velocity of the impacting drop is increased. We show how these observations can be explained from a balance between the lubrication pressure in the air layer and the capillary pressure of the drop.
Elastic nucleon-deuteron scattering with [delta]-isobar excitation
Creators: name: Nemoto, Shino
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: Three-nucleon system
subject: delta-isobar excitation
subject: nucleon-deuteron scattering
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
title: Generalised latent variable models for location, scale, and shape parameters
Creators: name: Cárdenas Hurtado, Camilo Alberto
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2023

description: Latent Variable Models (LVM) are widely used in social, behavioural, and educational sciences to uncover underlying associations in multivariate data using a smaller number of latent variables. However, the classical LVM framework has certain assumptions that can be restrictive in empirical applications. In particular, the distribution of the observed variables being from the exponential family and the latent variables influencing only the conditional mean of the observed variables. This thesis addresses these limitations and contributes to the current literature in two ways. First, we propose a novel class of models called Generalised Latent Variable Models for Location, Scale, and Shape parameters (GLVM-LSS). These models use linear functions of latent factors to model location, scale, and shape parameters of the items’ conditional distributions. By doing so, we model higher order moments such as variance, skewness, and kurtosis in terms of the latent variables, providing a more flexible framework compared to classical factor models. The model parameters are estimated using maximum likelihood estimation. Second, we address the challenge of interpreting the GLVM-LSS, which can be complex due to its increased number of parameters. We propose a penalised maximum likelihood estimation approach with automatic selection of tuning parameters. This extends previous work on penalised estimation in the LVM literature to cases without closed-form solutions. Our findings suggest that modelling the entire distribution of items, not just the conditional mean, leads to improved model fit and deeper insights into how the items reflect the latent constructs they are intended to measure. To assess the performance of the proposed methods, we conduct extensive simulation studies and apply it to real-world data from educational testing and public opinion research. The results highlight the efficacy of the GLVM-LSS framework in capturing complex relationships between observed variables and latent factors, providing valuable insights for researchers in various fields.
Geochemical and Isotopic Evolution of Late Oligocene Magmatism in Quchan, NE Iran
Creators: name: Moghadam, H.S.
name: Li, Q.L.
name: Kirchenbaur, M.
name: Garbe-Schönberg, D.
name: Lucci, F.
name: Griffin, W.L.
name: Ghorbani, G.
Publisher: name: Hoboken, NJ : Wiley
Year: 2021
Subjects: subject: collisional magmatism
subject: geochemistry
subject: geochronology
subject: Iran
subject: Urumieh-Dokhtar magmatic belt
subject: Binary alloys
subject: Geochemistry
subject: FOS: Earth and related environmental sciences
subject: Geochronology
subject: Igneous rocks
subject: Lead alloys
subject: Trace elements
subject: Uranium alloys
subject: Zircon
subject: Back-arc
subject: Collisional
subject: Collisional magmatism
subject: Eurasia
subject: Geochemicals
subject: Late cretaceous
subject: Magmatisms
subject: Pleistocene
subject: Urumieh-dokhtar magmatic belt
subject: Isotopes
subject: backarc basin
subject: Cretaceous
subject: felsic rock
subject: fractional crystallization
subject: isotopic analysis
subject: magmatism
subject: Oligocene
subject: trace element
subject: uranium-lead dating
subject: Quchan
subject: Razavi Khorasan
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Magmatic activity that accompanied the collision between Arabia and Eurasia at ∼27 Ma, provides unique opportunities for understanding the triggers and magma reservoirs for collisional magmatism and its different styles in magmatic fronts and back-arcs. We present new ages and geochemical-isotopic results for magmatic rocks that formed during the collision between Arabia and Eurasia in NE Iran, which was a back-arc region to the main magmatic arcs of Iran. Our new zircon U-Pb ages indicate that collisional magmatism began at ∼24 Ma in the NE Iran back-arc, although magmatism in this area started in the Late Cretaceous time and continued until the Pleistocene. The collisional igneous rocks are characteristically bimodal, and basaltic-andesitic and dacitic-rhyolitic components show significant isotopic differences; εNd(t) = +4.4 to +7.4 and εHf(t) = +5.4 to +9.5 for mafic rocks and εNd(t) = +0.2 to +8.4 and εHf(t) = +3.4 to +12.3 for silicic rocks. The isotopic values and modeling suggest that fractional crystallization and assimilation-fractional crystallization played important roles in the genesis of felsic rocks in the NE Iran collisional zone. Trace element and isotopic modeling further emphasize that the main triggers of the magmatism in NE Iran comprise a depleted to the enriched mantle and the Cadomian continental crust of Iran. Our results also emphasize the temporal magmatic variations in the NE Iran back-arc from Late Cretaceous to Pleistocene. © 2021. The Authors.
ELS-LEED study of low-dimensional plasmons in DySi2 layers and nanowires
Creators: name: Rugeramigabo, Eddy Patrick
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Low-dimensional plasmon
subject: thin films
subject: nanowires
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
A variational eigenvalue solver on a quantum processor
Creators: name: Peruzzo, Alberto
name: McClean, Jarrod
name: Shadbolt, Peter
name: Yung, Man-Hong
name: Zhou, Xiao-Qi
name: Love, Peter J.
name: Aspuru-Guzik, Alán
name: O'Brien, Jeremy L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Quantum computers promise to efficiently solve important problems that are intractable on a conventional computer. For quantum systems, where the dimension of the problem space grows exponentially, finding the eigenvalues of certain operators is one such intractable problem and remains a fundamental challenge. The quantum phase estimation algorithm can efficiently find the eigenvalue of a given eigenvector but requires fully coherent evolution. We present an alternative approach that greatly reduces the requirements for coherent evolution and we combine this method with a new approach to state preparation based on ansätze and classical optimization. We have implemented the algorithm by combining a small-scale photonic quantum processor with a conventional computer. We experimentally demonstrate the feasibility of this approach with an example from quantum chemistry: calculating the ground state molecular energy for He-H+, to within chemical accuracy. The proposed approach, by drastically reducing the coherence time requirements, enhances the potential of the quantum resources available today and in the near future.
Interaction Pressure Tensor for a class of Multicomponent Lattice Boltzmann models
Creators: name: Sbragaglia, M.
name: Belardinelli, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theory to obtain the pressure tensor for a class of non-ideal multicomponent lattice Boltzmann models, thus extending the theory presented by Shan (X. Shan, Phys. Rev. E 77, 066702 (2008)) for single component fluids. We obtain the correct form of the pressure tensor directly on the lattice and the resulting equilibrium properties are shown to agree very well with those measured from numerical simulations. Results are compared with those of alternative theories.
description: 7 Pages, 5 figures
MPEC 2023-L81 : 2023 LP1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 LP1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Advances in the application of electrohydrodynamic fabrication for tissue engineering
Creators: name: Gryshkov, O.
name: Müller, M.
name: Leal-Marin, S.
name: Mutsenko, V.
name: Suresh, S.
name: Kapralova, V.M.
name: Glasmacher, B.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2019
Subjects: subject: Cell engineering
subject: Electrohydrodynamics
subject: Fabrication
subject: Tissue
subject: Cell based therapies
subject: Extracellular matrices
subject: Hydrogel structure
subject: Implantation sites
subject: Physical chemical property
subject: Polymeric networks
subject: Three-dimensional (3D) environments
subject: Tissue engineered constructs
subject: Scaffolds (biology)
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Tissue engineering and cell-based therapy approaches require artificial scaffolds as extracellular matrix (ECM) and three-dimensional (3D) environment for clinically relevant cells to attach, be metabolically active and proliferate. Moreover, these constructs must possess mechanical and physical-chemical properties matched with certain implantation site. If all the required conditions are met, a tissue-engineered construct is considered as functional and will regenerate or replace the damaged tissue after implantation. In this work, we give a short overview of so-called electrohydrodynamic approach (EHD), e.g. with an application of electric field, to fabricate nano- and microstructured porous polymeric networks. This includes the application of electrospinning (networks) and electrospraying (micro- and macrospheres) to produce scaffolds and semipermeable hydrogel structures as a basis for tissue engineering and cell-based therapies.
Effects of power law primordial magnetic field on big bang nucleosynthesis
Creators: name: Yamazaki, Dai G.
name: Kusakabe, Motohiko
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Big bang nucleosynthesis (BBN) is affected by the energy density of a primordial magnetic field (PMF). For an easy derivation of constraints on models for PMF generations, we assume a PMF with a power law (PL) distribution in wave number defined with a field strength, a PL index, and maximum and minimum scales at a generation epoch. We then show a relation between PL-PMF parameters and the scale invariant (SI) strength of PMF for the first time. We perform a BBN calculation including PMF effects, and show abundances as a function of baryon to photon ratio $η$. The SI strength of the PMF is constrained from observational constraints on abundances of $^4$He and D. The minimum abundance of $^7$Li/H as a function of $η$ slightly moves to a higher $^7$Li/H value at a larger $η$ value when a PMF exists during BBN. We then discuss degeneracies between the PL-PMF parameters in the PMF effect. In addition, we assume a general case in which both the existence and the dissipation of PMF are possible. It is then found that an upper limit on the SI strength of the PMF can be derived from a constraint on $^4$He abundance, and that a lower limit on the allowed $^7$Li abundance is significantly higher than those observed in metal-poor stars.
description: 15 pages, 5 figures, accepted for PRD 26 Oct 2012, published 10 December 2012
Empirical essays on tax planning and transfer pricing
Creators: name: Quinkler, Valentin Hermann Carl
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: tax haven
subject: tax avoidance
subject: Trademarks
subject: Intangibles
subject: State taxation
subject: Transfer pricing
subject: Information technology
subject: Digitalization
subject: Management control
subject: tax planning
subject: Intrafirm trade
subject: Transfer pricing regulations
subject: Steueroase
subject: Delaware
subject: Steuervermeidung
subject: Markenrechte
subject: Immaterielle Wirtschaftsgüter
subject: Transferpreise
subject: Informationstechnologie
subject: Digitalisierung
subject: Steuerplanung
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: This dissertation consists of three empirical studies contributing to the literature on tax planning and transfer pricing. The first study investigates the impact of U.S. state taxation on the geographical allocation of the intra-U.S. trademark ownership of large U.S. multinationals. The study documents that the U.S. State of Delaware has a leading position as a trademark holding location and that the major-ity of trademarks are registered there. Moreover, it contains an analysis of the effectiveness of group consolidation (combined reporting) and provides evidence that combined reporting signifi-cantly reduces the share of trademarks allocated to Delaware. Nevertheless, the identified effects indicate that Delaware-based trademark strategies have not been entirely abandoned. The second study examines the use of information technologies in a firm’s transfer pricing system. In particular, it investigates the role of firms’ information environment in mitigating the conflict of managerial and tax objectives in transfer pricing. The study provides empirical evi-dence that if firms facing conflicting objectives make intensive use of information technologies, they are more profitable, report lower effective tax rates, and face lower tax risk. The third study analyzes whether the strictness of transfer pricing regulations and their en-forcement affect intrafirm trade of U.S. multinational firms. In particular, the results suggest that stricter transfer pricing in a country decrease the tax rate sensitivity of bilateral U.S. intrafirm trade. Thus, the possibilities of U.S. multinationals to engage in transfer pricing related tax plan-ning schemes are effectively reduced.
title: Oral Health Care Services Available to Mentally Retarded Individuals in Public Residential Facilities
Creators: name: Mattox, Marilynn
Publisher: name: Old Dominion University Libraries
Year: 1980

description: A growing awareness of the rights of institutionalized persons to receive comprehensive health care, including dentistry, has led to increased legislation in favor of handicapped individuals including the mentally retarded. Mentally retarded persons have a right to adequate health care, education, training rehabilitiation, and guidance that will enable them to develop their ability and maximum potential.

Mental retardation has in the past been defined as a condition that exists solely within an individual; more recent definitions have shifted to include "a condition that is an interaction between an individual and a particular environment. The environment in which a mentally retarded person resides greatly influences his/her ability to reach maximum developmental potential. For example, living in home-like settings provides retarded persons the opportunity to develop adaptive behaviors. The realization of the significance of environmental stimuli on development has led to the trend of "mainstreaming" of many mentally retarded citizens. Mainstreaming involves the relocation of some institutionalized mentally retarded individuals into the community with their family or in a home-like setting to facilitate their development. In the case of severely retarded residents, the institutions are trying to provide a home-like environment within the institution.
Learning Contrastive Representation for Semantic Correspondence
Creators: name: Xiao, Taihong
name: Liu, Sifei
name: De Mello, Shalini
name: Yu, Zhiding
name: Kautz, Jan
name: Yang, Ming-Hsuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Dense correspondence across semantically related images has been extensively studied, but still faces two challenges: 1) large variations in appearance, scale and pose exist even for objects from the same category, and 2) labeling pixel-level dense correspondences is labor intensive and infeasible to scale. Most existing approaches focus on designing various matching approaches with fully-supervised ImageNet pretrained networks. On the other hand, while a variety of self-supervised approaches are proposed to explicitly measure image-level similarities, correspondence matching the pixel level remains under-explored. In this work, we propose a multi-level contrastive learning approach for semantic matching, which does not rely on any ImageNet pretrained model. We show that image-level contrastive learning is a key component to encourage the convolutional features to find correspondence between similar objects, while the performance can be further enhanced by regularizing cross-instance cycle-consistency at intermediate feature levels. Experimental results on the PF-PASCAL, PF-WILLOW, and SPair-71k benchmark datasets demonstrate that our method performs favorably against the state-of-the-art approaches. The source code and trained models will be made available to the public.
Saxifraga nutans L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. nutans L. Cat. 46. Statt «s'eleve...jusqu'äla region niv ai e » ist im Cat.zulesen: alpine. Var. rubens (Vest) Rohrbach - l: Ob Salvan (Coquoz). -3: Valsorey (Guyot); Zermatt (Heinis). Mit schwarzrotenBlüten:beiBaltschieder (Hirschmann).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Magnetic moment suppression in Ba3CoRu2O9: hybridization effect
Creators: name: Streltsov, S. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An unusual orbital state was recently proposed to explain the magnetic and transport properties of Ba$_3$CoRu$_2$O$_9$ [Phys. Rev. B. {\bf 85}, 041201 (2012)]. We show that this state contradicts to the first Hund's rule and does not realize in the system under consideration because of a too small crystal-field splitting in the $t_{2g}$ shell. A strong suppression of the local magnetic moment in Ba$_3$CoRu$_2$O$_9$ is attributed to a strong hybridization between the Ru 4$d$ and O 2$p$ states.
description: 5 pages, 5 figures
Call for community review of Essential Metadata for 3D BRAIN Microscopy
Creators: name: INCF Standards And Best Practices Committee
Publisher: name: F1000 Research Limited
Year: 2022

description: The purpose of this document is to solicit community feedback on the Essential Metadata for 3D BRAIN Microscopy (EM3BM), a metadata standard intended to ensure that a 3D microscopy dataset is sufficiently described to support its re-use by scientists who did not generate the data. It was developed by a working group with diverse expertise, using a consensus-based process that relied on input from the scientific community, and builds on existing efforts (including the DataCite metadata schema and the Open Microscopy Environment (OME)) to promote adoption and utility. EM3BM is under implementation in the Brain Image Library, the designated repository for making microscopy data publicly available for investigators funded by the US BRAIN Initiative.

 The document contains the INCF Standards and Best Practices Committee's review of Essential Metadata for 3D BRAIN Microscopy, and the criteria in which it was evaluated (open, FAIR, testing and implementation, governance, adoption and use, stability and support, and comparison to similar standards). For the next 60 days, we are seeking community feedback on Essential Metadata for 3D BRAIN Microscopy.
The Effects of Spatio-temporal Resolution on Deduced Spicule Properties
Creators: name: Pereira, Tiago M. D.
name: De Pontieu, Bart
name: Carlsson, Mats
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spicules have been observed on the sun for more than a century, typically in chromospheric lines such as H-alpha and Ca II H. Recent work has shown that so-called 'type II' spicules may have a role in providing mass to the corona and the solar wind. In chromospheric filtergrams these spicules are not seen to fall back down, and they are shorter-lived and more dynamic than the spicules that have been classically reported in ground-based observations. Observations of type II spicules with Hinode show fundamentally different properties from what was previously measured. In earlier work we showed that these dynamic type II spicules are the most common type, a view that was not properly identified by early observations.The aim of this work is to investigate the effects of spatio-temporal resolution in the classical spicule measurements. Making use of Hinode data degraded to match the observing conditions of older ground-based studies, we measure the properties of spicules with a semi-automated algorithm. These results are then compared to measurements using the original Hinode data. We find that degrading the data has a significant effect on the measured properties of spicules. Most importantly, the results from the degraded data agree well with older studies (e.g. mean spicule duration more than 5 minutes, and upward apparent velocities of about 25 km/s). These results illustrate how the combination of spicule superposition, low spatial resolution and cadence affect the measured properties of spicules, and that previous measurements can be misleading.
description: Accepted for publication in ApJ. 5 pages, 3 figures. Movies of figures 1 and 3 available via Data Conservancy
Diode pumped cw ruby laser
Creators: name: Luhs, W.
name: Wellegehausen, B.
Publisher: name: Washington, DC : OSA - The Optical Society
Year: 2019
Subjects: subject: Continuous wave lasers
subject: Ring lasers
subject: Ruby
subject: Diode-pumped
subject: Output power
subject: Ring resonator
subject: Ruby lasers
subject: Single frequency operation
subject: Pumping (laser)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Cw laser oscillation of ruby at 694 nm in linear and ring resonators is reported for the first time, pumped with a 1 W laser diode at 405 nm as well as 445 nm. The ruby laser operates at room temperature with a threshold of 200 mW at 405 nm and 400 mW at 445 nm. So far output powers up to 36 mW have been achieved pumped at 405 nm. With the ruby ring laser highly coherent single frequency operation will be possible. © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
Inhomogeneous magnetism in the doped kagome lattice of LaCuO2.66
Creators: name: Julien, M. -H.
name: Simonet, V.
name: Canals, B.
name: Ballou, R.
name: Hassan, A. K.
name: Affronte, M.
name: Garlea, V. O.
name: Darie, C.
name: Bordet, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The hole-doped kagome lattice of Cu2+ ions in LaCuO2.66 was investigated by nuclear quadrupole resonance (NQR), electron spin resonance (ESR), electrical resistivity, bulk magnetization and specific heat measurements. For temperatures above ~180 K, the spin and charge properties show an activated behavior suggestive of a narrow-gap semiconductor. At lower temperatures, the results indicate an insulating ground state which may or may not be charge ordered. While the frustrated spins in remaining patches of the original kagome lattice might not be directly detected here, the observation of coexisting non-magnetic sites, free spins and frozen moments reveals an intrinsically inhomogeneous magnetism. Numerical simulations of a 1/3-diluted kagome lattice rationalize this magnetic state in terms of a heterogeneous distribution of cluster sizes and morphologies near the site-percolation threshold.
title: Exploring the political economy causes of inequality in preindustrial Germany (c. 1400-1800)
Creators: name: Schaff, Stefan Felix Frederick
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2022

description: This thesis addresses a major puzzle in economic history: why was economic inequality already high when industrialisation and modern economic growth began? In the first part of the project (Chapter 2), I collect new data from archival documents to estimate the extent of wealth inequality in a panel of towns and villages, and at a hypothetical “national” level. This new evidence shows that Germany followed a secular trend of inequality growth between the fourteenth and nineteenth centuries, incidentally interrupted by idiosyncratic shocks, such as the Black Death (1350) epidemic and the Thirty Years’ War (1618-48). In the second part of the project, I explore the causal effects of three central facets of the political economy of early modern Europe on inequality: warfare, the Protestant Reformation and closed governmental institutions in cities. My empirical strategies in these chapters employ difference-in-differences and instrumental variable techniques on the newly assembled town and village-level databases created in the first part of the dissertation. In Chapter 3 I document that, contrary to the widely held view that wars were “levelers” in history, the frequent military conflicts happening in preindustrial times constantly reinforced inequality. That was the result of warfare increasing the financial needs of communities in preindustrial times, which induced political elites to extract more resources via inequality promoting channels, such as regressive taxation. In Chapter 4 I study the effect of the Protestant Reformation on inequality. I argue that the Reformation expanded social welfare, but provided it in a particularistic way. This gave Protestantism an ambiguous character in terms of redistribution and its impact on inequality. I model that trade-off theoretically and test its implications empirically. In line with the theoretical framework, I document that the Reformation exacerbated inequality overall, by making marginal poor people relatively poorer. The result is driven by the introduction of 4 new particularistic poor relief policies in Protestant communities. The final chapter investigates the impact of urban political structure on inequality. I document that more closed political institutions were related to higher economic inequality in a panel of early modern German cities. To investigate the mechanisms behind that macrorelationship, I construct an individual-level panel-dataset, containing c.27,000 observations on personal wealth and political office-holding in the city state of Nördlingen from 1585 to 1700. I show that political elites enriched themselves substantially after entering office, but not before. These private gains from public office contributed to economic inequality. Politicians manipulated the crisis of the Thirty Years’ War to enrich themselves further. The results are hard to square with a “civic-mindedness” narrative of urban political elites.
Parametrische Verstärkung von Einzyklen-Pulsen und deren kohärente Wechselwirkung mit einem Zwei-Niveau-System
Creators: name: Harth, Anne
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Single-cycle pulse
subject: optical parametric amplification
subject: supercontinuum generation
subject: quantum path interference
subject: Einzyklen-Puls
subject: parametrische Verstärkung
subject: Superkontinuumserzeugung
subject: Quantenpfadinterferenz
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Empirical essays in labor economics
Creators: name: Tabbert, Falko
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Labour economics
subject: economics of education
subject: development economics
subject: Arbeitsökonomik
subject: Bildungsökonomik
subject: Entwicklungsökonomik
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
title: Factors Effecting Phytoplankton Assemblages in the Lafayette River Estuary
Creators: name: Kalenak, Laurie Ann
Publisher: name: Old Dominion University Libraries
Year: 1982

description: Chemical and physical parameters were measured with phytoplankton species composition and abundance in the Lafayette River from August to October 1981. Stations located in four distinct areas of the river were statistically analyzed to determine data relationships. Environmental factors considered as potentially influencing the presence and numbers of phytoplankton were salinity, temperature, Secchi depth, tidal phase, orthophosphate, combined nitrates and nitrites, ammonia, and reactive silicates.

The River mouth had higher salinity and nutrient values, with lower temperatures than the other river sections. Diatoms were the dominant cells in this section of the River. At mid-river, salinity and nutrient concentrations decreased, with higher temperatures noted. Common to this area were diatoms and a larger number of phytoflagellates. In the two River branches, flagellated cells were dominant, with increasing numbers of chlorophytes and cyanophytes. Environmental conditions associated with these areas were low salinity, high temperatures and increased nutrient levels.

Discriminant Function and Pearson Correlation analyses were conducted separately on environmental and biological data sets. Adjacent stations were not significantly different environmentally. However, in areas located other than next to one another, clusters were statistically different at the a

Visual comparisons between the two sets of analyses showed that stations grouped in the same cluster 75% of the time. Of the remaining fraction, half of the cases were associated with severe storm conditions.
Monte-Carlo utility estimates for Bayesian reinforcement learning
Creators: name: Dimitrakakis, Christos
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This paper introduces a set of algorithms for Monte-Carlo Bayesian reinforcement learning. Firstly, Monte-Carlo estimation of upper bounds on the Bayes-optimal value function is employed to construct an optimistic policy. Secondly, gradient-based algorithms for approximate upper and lower bounds are introduced. Finally, we introduce a new class of gradient algorithms for Bayesian Bellman error minimisation. We theoretically show that the gradient methods are sound. Experimentally, we demonstrate the superiority of the upper bound method in terms of reward obtained. However, we also show that the Bayesian Bellman error method is a close second, despite its significant computational simplicity.
description: 6 pages, 4 figures, 1 table, submitted to IEEE conference on decision and control
Endophytic establishment of Beauveria bassiana in grapevine plants as a sustainable pest management strategy
Creators: name: Rondot, Yvonne
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: grapevine
subject: endophyte
subject: biological control
subject: Beauveria bassiana
subject: Weinrebe
subject: Endophyt
subject: biologischer Pflanzenschutz
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Fungal entomopathogens like Beauveria bassiana (Bals.) Vuill. (Ascomycota: Hypocreales) are known as antagonists of insects with multiple functional and ecological roles and have attracted increased attention as biocontrol agents in integrated pest management programs. Besides its entomopathogenic habit, evidence has accumulated that the fungus can also establish as an endophyte in a wide array of plant species. However, only limited information is currently available on the endophytic colonization of grapevine, Vitis vinifera (L.), plants with B. bassiana. In addition, the functional role of the fungus in planta, and/or the plant’s response to colonization by B. bassiana as well as the mechanisms underlying these responses and putative protection effects, still require elucidation. Therefore, the objectives of this thesis were to investigate whether the fungus B. bassiana is able to colonize grapevine plants, still maintains its entomopathogenic potential against insect pests, and can provide additional protection against plant fungal pathogens or limit their damaging effects. The investigation focused on the interaction between B. bassiana, grapevine plants, and potential target insect pests as well as fungal pathogens to gain more knowledge on this particular tritrophic interaction with regard to potential biological control strategies.
Desmoxya pelagiae Van Soest & Hooper 2005
Creators: name: Morrow, Christine
name: Cárdenas, Paco
name: Boury-Esnault, Nicole
name: Picton, Bernard
name: Mccormack, Grace
name: Soest, Rob Van
name: Collins, Allen
name: Redmond, Niamh
name: Maggs, Christine
name: Sigwart, Julia
name: Allcock, Louise A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Poecilosclerida
Desmoxyidae
Desmoxya
Desmoxya pelagiae

description: DESMOXYA PELAGIAE VAN SOEST & HOOPER, 2005
(FIG. 20A–H)
Desmoxya pelagiae Van Soest & Hooper, 2005 (pp. 1368–1370, fig. 2a–h).
Material examined: Holotype ZMA POR18145, M2004 BX33A, Rockall Bank, S part, 55°30.288′N, 15°47.148′W, 2 September 2004, 673 m.
BELUM Mc 7764, 54°4.435′N, 12°31.507′W, CE10004 of RV Celtic Explorer, 27 May 2010, coll. C. Morrow, det. C. Morrow.
DNA sequences: From BELUM Mc 7764, we sequenced partial CO1 (GenBank accession no. KC876696) and 28S (D3–D5, GenBank accession no. KF018109). The 18 S GenBank sequence KC902064 is from the same specimen.
Remarks: A re-examination of the type specimen of Desmoxya pelagiae found acanthostyle spicules and unidirectional spines on the raphides (similar to onychaetes) that were overlooked in the original description (Fig. 20 shows an SEM of the spicules from the type specimen). The acanthostyles are relatively scarce and confined to the basal region of the sponge. They measure 288– 314– 353 µm × 9–10 µm (N = 6; measurements taken at middle portion of shaft), the heads of the acanthostyles are ~12 µm across.
The presence of acanthostyles and onychaetes suggests an affinity with Tedaniidae (Poecilosclerida). Figure 20G, H illustrates the spicule composition in Desmoxya # pelagiae and Tedania (Trachytedania) cf. ferrolensis (Cristobo & Urgorri, 2001), respectively. Both species share strongyles, raphides and acanthostyles. In addition, Desmoxya pelagiae has bow-shaped acanthose microscleres with unidirectional spines.
description: Published as part of Morrow, Christine, Cárdenas, Paco, Boury-Esnault, Nicole, Picton, Bernard, Mccormack, Grace, Soest, Rob Van, Collins, Allen, Redmond, Niamh, Maggs, Christine, Sigwart, Julia & Allcock, Louise A., 2019, Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae), pp. 31-81 in Zoological Journal of the Linnean Society 187 on page 70
Hunting for asymptotia at LHC
Creators: name: Pancheri, G.
name: Fagundes, D. A.
name: Grau, A.
name: Pacetti, S.
name: Srivastava, Y. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss whether the behaviour of some hadronic quantities, such as the total cross-section, the ratio of the elastic to the total cross-section, are presently exhibiting the asymptotic behaviour expected at very large energies. We find phenomenological evidence that at LHC7 there is still space for further evolution.
description: 5 pages, 2 figures, talk given by G. Pancheri at International Workshop on Diffraction in High-Energy Physics, DIFFRACTION 2012, Puerto del Carmen, Canary Islands, Spain. To appear in AIP Conf. Proc
Научные труды,Выпуск №3 (том 24, №3,2022 (1-93)ст) 2023
Creators: name: Национальная Академия Авиации Азербайджана
Publisher: name: Национальная Академия Авиации Азербайджана
Year: 2023

description: Научные труды,Выпуск №3 (том 24, №3,2022 (1-93)ст) 2023
title: Stratigraphy and Depositional Environments of a Late Pleistocene Barrier Island Complex, Southeastern Virginia
Creators: name: Jasper, Alan K.
Publisher: name: Old Dominion University Libraries
Year: 1982

description: The Norfolk, Kempsville, and Sand Bridge Formations beneath the HIckory Scarp of southeastern Virginia are reinterpreted as representing one glacio-eustatic transgressive cycle. The timing of this transgressive event is set during the earliest Wisconsinan. The formations were previously interpreted as unconformable overlying one another. The Norfolk-Kempsville unconformity is actually a diagenetic boundary. Evidence is presented which indicates that the Kempsville Scarp area should be reduced to member status or dropped entirely.