cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enhancing the electron mobility via delta-doping in SrTiO3
Creators: name: Kozuka, Y.
name: Kim, M.
name: Ohta, H.
name: Hikita, Y.
name: Bell, C.
name: Hwang, H. Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We fabricated high-mobility δ-doped structures in SrTiO3 thin films in order to investigate the low temperature electronic transport properties of confined carriers in this system. An enhancement of the electron mobility above the bulk value was observed as the doped layer thickness decreased. High-field Hall measurements revealed that this mobility enhancement originates from higher-mobility electrons in the undoped clean regions, which have quantum-mechanically broadened from the doped layer. Because of the absence of apparent lattice misfit between the layers, this structure is highly suitable for investigating two-dimensional electron gases in SrTiO3.
description: 14 pages, 4 figures
Compositional and structural analysis of selected chromosomal domains from Saccharomyces cerevisiae
Creators: name: Hamperl, Stephan
name: Brown, Christopher R.
name: Villar Garea, Ana
name: Perez-Fernandez, Jorge
name: Bruckmann, Astrid
name: Huber, Katharina
name: Wittner, Manuel
name: Babl, Virginia
name: Stoeckl, Ulrike
name: Deutzmann, Rainer
name: Boeger, Hinrich
name: Tschochner, Herbert
name: Milkereit, Philipp
name: Griesenbeck, Joachim
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: 570 Biowissenschaften, Biologie

description: Chromatin is the template for replication and tran- scription in the eukaryotic nucleus, which needs to be defined in composition and structure before these processes can be fully understood. We report an isolation protocol for the targeted purifi- cation of specific genomic regions in their native chromatin context from Saccharomyces cerevisiae . Subdomains of the multicopy ribosomal DNA locus containing transcription units of RNA polymerases I, II or III or an autonomous replication sequence were independently purified in sufficient amounts and purity to analyze protein composition and histone modifications by mass spectrometry. We present and discuss the proteomic data sets obtained for chromatin in different functional states. The native chromatin was further amenable to electron mi- croscopy analysis yielding information about nucleosome occupancy and positioning at the single-molecule level. We also provide evidence that chromatin from virtually every single copy genomic locus of interest can be purified and analyzed by this technique.
Bell scenarios in which nonlocality and entanglement are inversely related
Creators: name: Vallone, G.
name: Lima, G.
name: Gómez, E. S.
name: Cañas, G.
name: Larsson, J. -A.
name: Mataloni, P.
name: Cabello, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that for two-qubit chained Bell inequalities with an arbitrary number of measurement settings, nonlocality and entanglement are not only different properties but are inversely related. Specifically, we analytically prove that in absence of noise, robustness of nonlocality, defined as the maximum fraction of detection events that can be lost such that the remaining ones still do not admit a local model, and concurrence are inversely related for any chained Bell inequality with an arbitrary number of settings. The closer quantum states are to product states, the harder it is to reproduce quantum correlations with local models. We also show that, in presence of noise, nonlocality and entanglement are simultaneously maximized only when the noise level is equal to the maximum level tolerated by the inequality; in any other case, a more nonlocal state is always obtained by reducing the entanglement. In addition, we observed that robustness of nonlocality and concurrence are also inversely related for the Bell scenarios defined by the tight two-qubit three-setting $I_{3322}$ inequality, and the tight two-qutrit inequality $I_3$.
description: 9 pages
An examination of underlying motor planning and execution processes that are reflected in variations in cortical components during target encoding and execution of goal directed reaching movements
Creators: name: Cheng, Darian T.
Publisher: name: University of British Columbia
Year: 2017

description: In this thesis the neural correlates associated with reaches under varying conditions of visual feedback, delay and movement difficulty were examined. The events of interest, wherein these correlates are observed were: 1) the encoding of a target (P3); and 2) the execution of a reaching movement towards the target (motor MP & N4). In study 1, the neural correlates associated with variations in task difficulty and target visible vs. target occluded were examined. The results of target encoding showed that P3 was greater when observed prior to reaches without than with vision of the target. Results of MP and N4 both varied based on task difficulty, as reaches to the far target yielded larger amplitudes than reaches to the close target. In study 2, the effects of visual feedback, delay condition, and presentation schedules (i.e., blocked vs. randomized) on target encoding and movement related cortical potentials was examined. For target encoding, component P3 failed to yield any significant differences across all vision, delay and presentation schedules. As for the movement related potentials, significant effects of delay were observed for component MP in the randomized protocol (i.e., larger MP in the long vs. the short delay), but not the blocked protocol. The analysis of N4 for the randomized protocol yielded a main effect of vision, as reaches with vision of the target attained greater negative amplitudes as compared with reaches without vision of the target. In the blocked protocol the analyses of N4 yielded a main effect of delay period as movements following long delay periods resulted in larger negative amplitudes. In study 3, the effects of real-time vision of the hand and target during a reaching movement on target encoding and movement execution were investigated. The findings revealed that the P3 component was modulated by the visibility of target. For the movement related cortical potentials, larger amplitudes for N4 were yielded for reaches without vision of the hand vs. reaches with vision of the hand. The three studies taken together provide insight into the neural events associated with goal-directed manual aiming under various reaching conditions.
Kentucky River Basin
Creators: name: Carey, Daniel I.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2009

description: Abstract:
The Kentucky River Basin's nearly 7,000 square miles in 42 counties contain 16,000 miles of streams. From a hill in Letcher County 3,250 feet above sea level, and the Kentucky River runs down the Eastern Kentucky Coal Field, Knobs, and Bluegrass Regions to the Ohio River at 420 feet above sea level.
Along the way the river washes rocks laid down as sediments over a period of 150 million years—past the 300-million-year-old sandstone, siltstone, shale, and Camp Nelson limestones at the base of the Kentucky River Palisades in central Kentucky.
Residents draw about 100 million gallons of water per day from streams and reservoirs in the basin. The Kentucky River's 14 dams create 9,700 acres of pools with over 100,000 acre-feet of storage for drinking-water supplies. On average, about 5,400 million gallons per day (mgd) flow into the Ohio, but about once every 10 years, only 9.4 mgd will flow a the mouth for a week. This variability in flow affects water users and stream life.
Man-made lakes cover 8,200 acres: The largest are Herrington, 2,940 acres; Buckhorn, 1,230 acres; and Carr Fork, 710 acres. There are 33,600 acres of lacustrine and palustrine wetlands in the basin.
More than 1,125 miles of streams in the basin do not fully support designated uses for warm-water aquatic habitat, primary contact recreation, secondary contact recreation, or fish consumption. Most streams have not been assessed. The percentage of assessed streams not supporting use was: warm-water aquatic habitat (42%); fish consumption (26%); primary contact recreation (46%). More than 335 miles of streams have been declared special use waters: either exceptional waters, or reference reaches. More than 2,075 miles of the basin have been designated as priority watersheds, impacted by pathogens, nutrients, habitat alterations, siltation, low dissolved oxygen, and metals.
Ollivier's Ricci curvature, local clustering and curvature dimension inequalities on graphs
Creators: name: Jost, Jürgen
name: Liu, Shiping
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper, we explore the relationship between one of the most elementary and important properties of graphs, the presence and relative frequency of triangles, and a combinatorial notion of Ricci curvature. We employ a definition of generalized Ricci curvature proposed by Ollivier in a general framework of Markov processes and metric spaces and applied in graph theory by Lin-Yau. In analogy with curvature notions in Riemannian geometry, we interpret this Ricci curvature as a control on the amount of overlap between neighborhoods of two neighboring vertices. It is therefore naturally related to the presence of triangles containing those vertices, or more precisely, the local clustering coefficient, that is, the relative proportion of connected neighbors among all the neighbors of a vertex. This suggests to derive lower Ricci curvature bounds on graphs in terms of such local clustering coefficients. We also study curvature dimension inequalities on graphs, building upon previous work of several authors.
description: to appear in Discrete & Computational Geometry
Pressure Dependence of 15N Chemical Shifts in Model Peptides Ac-Gly-Gly-X-Ala-NH2
Creators: name: Koehler, Joerg
name: Beck Erlach, Markus
name: Crusca, Edson
name: Kremer, Werner
name: Munte, Claudia Elisabeth
name: Kalbitzer, Hans Robert
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 570 Biowissenschaften, Biologie

description: High pressure NMR spectroscopy has developed into an important tool for studying conformational equilibria of proteins in solution. We have studied the amide proton and nitrogen chemical shifts of the 20 canonical amino acids X in the random-coil model peptide Ac-Gly-Gly-X-Ala-NH2, in a pressure range from 0.1 to 200 MPa, at a proton resonance frequency of 800 MHz. The obtained data allowed the determination of first and second order pressure coefficients with high accuracy at 283 K and pH 6.7. The mean first and second order pressure coefficients and for nitrogen are 2.91 ppm/GPa and −2.32 ppm/GPa2, respectively. The corresponding values and for the amide protons are 0.52 ppm/GPa and −0.41 ppm/GPa2. Residual dependent 1J1H15N-coupling constants are shown. Keywords: tetrapeptide; high pressure; NMR spectroscopy; random-coil; chemical shift; J-coupling; nitrogen; amide group; backbone
Fisheries and trade of species Listed on CITES appendix II, with a focus on seahorses
Creators: name: Kuo, Ting-Chun
Publisher: name: University of British Columbia
Year: 2017

description: International trade regulations are important tools to ensure sustainable use of wildlife, but their effects on marine fishes are rarely examined. In this thesis, I evaluated patterns and changes in international trade of marine fishes whose exports are regulated under the Convention on the International Trade in Endangered Species of Wild Flora and Fauna (CITES). I focused on the case study of seahorses (Hippocampus spp.), which were the first marine fishes with exports controlled under CITES (Appendix II) in 2002, but also investigate international trade for all animal species on Appendix II. In my first two research chapters, I investigated how implementation of CITES at the national level affected seahorse fisheries and trades. My study focused on Thailand, the country that has long exported the most seahorses. In Chapter 2, I showed that fishers reported different catch rates over varying reporting time periods. This correlation could greatly influence catch estimates and have implications for management that draws on fishers’ knowledge. In Chapter 3, I found that seahorse catch and domestic trade did not change after the Thai government set an export quota for seahorses, even though formal export data showed notable declines in volume. In my next two research chapters, I considered trade dynamics at the global scale. In Chapter 4, I found that once the CITES Appendix II listing came into effect, total weight of seahorses in documented global trade decreased, recorded seahorse exports became dominated by few countries, and prices for seahorses increased. In Chapter 5, I explored trade patterns for all CITES Appendix II animal species. I discovered that the USA appears to be the centre of reported wildlife trade but also that several Asian countries were emerging as important importers. I also found that the trade in marine fishes and non-coral invertebrates involved more countries with more connections than other Appendix II taxa. My thesis highlights the opportunities and limitations of using export controls in managing the trade in marine fishes. These findings have implications for the implementations of global agreement, wildlife trade monitoring and conservation effort prioritizing.
The pholcid spiders of Ecuador – a preliminary report
Creators: name: A. Huber, Bernhard
name: M., Mauricio G. HERRERA
Publisher: name: figshare
Year: 2022
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences

description: A recent collecting trip to mainland Ecuador (BAH, Sep.–Oct. 2021) resulted in a total of ~70 morphospecies of Pholcidae. Of these, more than 60 species, or almost 90% of the collected species, are probably new.
Entanglement entropy between two coupled Tomonaga-Luttinger liquids
Creators: name: Furukawa, Shunsuke
name: Kim, Yong Baek
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a system of two coupled Tomonaga-Luttinger liquids (TLL) on parallel chains and study the Renyi entanglement entropy $S_n$ between the two chains. Here the entanglement cut is introduced between the chains, not along the perpendicular direction as used in previous studies of one-dimensional systems. The limit $n\to1$ corresponds to the von Neumann entanglement entropy. The system is effectively described by two-component bosonic field theory with different TLL parameters in the symmetric/antisymmetric channels as far as the coupled system remains in a gapless phase. We argue that in this system, $S_n$ is a linear function of the length of the chains (boundary law) followed by a universal subleading constant $γ_n$ determined by the ratio of the two TLL parameters. The formulae of $γ_n$ for integer $n\ge 2$ are derived using (a) ground-state wave functionals of TLLs and (b) boundary conformal field theory, which lead to the same result. These predictions are checked in a numerical diagonalization analysis of a hard-core bosonic model on a ladder. Although the analytic continuation of $γ_n$ to $n\to 1$ turns out to be a difficult problem, our numerical result suggests that the subleading constant in the von Neumann entropy is also universal. Our results may provide useful characterization of inherently anisotropic quantum phases such as the sliding Luttinger liquid phase via qualitatively different behaviors of the entanglement entropy with the entanglement partitions along different directions.
description: 21 pages, 16 figures. v2: Some changes in the discussion of the analyticity of Renyi entropy. v3: The von Neumann limit (n\to 1) of gamma_n has been obtained. A note is added on this (Appendix C). v4: The added note has been published as Erratum: Phys. Rev. B 87, 119901(E) (2013)
Automated analysis of non-mass-enhancing lesions in breast MRI based on morphological, kinetic, and spatio-temporal moments and joint segmentation-motion compensation technique
Creators: name: Hoffmann, Sebastian
name: Shulter, Jamie
name: Lobbes, Marc
name: Burgeth, Bernhard
name: Meyer-Bäse, Anke
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: 570 Biowissenschaften, Biologie

description: Abstract Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) represents an established method for the detection and diagnosis of breast lesions. While mass-like enhancing lesions can be easily categorized according to the Breast Imaging Reporting and Data System (BI-RADS) MRI lexicon, a majority of diagnostically challenging lesions, the so called non-mass-like enhancing lesions, remain both qualitatively as well as quantitatively difficult to analyze. Thus, the evaluation of kinetic and/or morphological characteristics of non-masses represents a challenging task for an automated analysis and is of crucial importance for advancing current computer-aided diagnosis (CAD) systems. Compared to the well-characterized mass-enhancing lesions, non-masses have no well-defined and blurred tumor borders and a kinetic behavior that is not easily generalizable and thus discriminative for malignant and benign non-masses. To overcome these difficulties and pave the way for novel CAD systems for non-masses, we will evaluate several kinetic and morphological descriptors separately and a novel technique, the Zernike velocity moments, to capture the joint spatio-temporal behavior of these lesions, and additionally consider the impact of non-rigid motion compensation on a correct diagnosis. Keywords: Non-mass-enhancing lesions; Writhe number; Krawtchouk moments; Zernike velocity moments; Kinetics; Classification; Computer-aided diagnosis; Breast magnetic resonance imaging
Development of renal renin-expressing cells does not involve PDGF-B-PDGFR-β signaling
Creators: name: Neubauer, Björn
name: Machura, Katharina
name: Rupp, V.
name: Tallquist, M. D.
name: Bestholtz, C.
name: Sequeira-Lopez, M. L.
name: Ariel Gomez, R.
name: Wagner, C.
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: 570 Biowissenschaften, Biologie

description: Apart from their endocrine functions renin-expressing cells play an important functional role as mural cells of the developing preglomerular arteriolar vessel tree in the kidney. The recruitment of renin-expressing cells from the mesenchyme to the vessel wall is not well understood. Assuming that it may follow more general lines of pericyte recruitment to endothelial tubes we have now investigated the relevance of the platelet-derived growth factor (PDGF)-B-PDGFR-β signaling pathway in this context. We studied renin expression in kidneys lacking PDGFR-β in these cells and in kidneys with reduced endothelial PDGF-B expression. We found that expression of renin in the kidneys under normal and stimulated conditions was not different from wild-type kidneys. As expected, PDGFR-β immunoreactivity was found in mesangial, adventitial and tubulo-interstitial cells but not in renin-expressing cells. These findings suggest that the PDGF-B-PDGFR-β signaling pathway is not essential for the recruitment of renin-expressing cells to preglomerular vessel walls in the kidney. Keywords: Mural cells, PDGF-B, PDGF-β receptor, pericyte, renin
The pholcid spiders of Ecuador – a preliminary report
Creators: name: Meng, Guanliang
name: HUBER, Bernhard A.
Publisher: name: figshare
Year: 2022
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences

description: A recent collecting trip to mainland Ecuador (BAH, Sep.–Oct. 2021) resulted in a total of ~70 morphospecies of Pholcidae. Of these, more than 60 species, or almost 90% of the collected species, are probably new.
Eco-Solvents - Cluster-Formation, Surfactantless Microemulsions, and Facilitated Hydrotropy
Creators: name: Klossek, Michael
name: Touraud, Didier
name: Kunz, Werner
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: eco cluster surfactantless microemulsion facilitated hydrotropy
subject: 540 Chemie

description: In this paper we consider clusters in the ternary systems water–benzyl alcohol and ethanol, ethyl lactate or γ-valerolactone as found with the help of dynamic and static light scattering experiments. These ternary mixtures are powerful solvent media and consist only of low-toxic solvents of natural origin. In a recent work we have shown that surfactantless microemulsions are formed in the water–ethanol–n-octanol system. By contrast, in the systems studied here the sizes of the aggregates are too small to be considered as micelles. It can be postulated that the presence of clusters or larger structures as in surfactantless microemulsions is strongly influenced by the most hydrophobic compound. The phenomenon of facilitated hydrotropy is also investigated in the above-mentioned systems. In this context, ethanol is considered as the primary hydrotrope and the more hydrophobic benzyl alcohol as the facilitating secondary hydrotrope. The hydrophobic dye Disperse Red 13 is used as a marker of facilitated hydrotropy. The results suggest that the degree of self-association of eco-solvent has a significant influence on the hydrotropic efficiency of benzyl alcohol.
Darboux coordinates, Yang-Yang functional, and gauge theory
Creators: name: Nekrasov, Nikita
name: Rosly, Alexey
name: Shatashvili, Samson
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The moduli space of SL(2) flat connections on a punctured Riemann surface with the fixed conjugacy classes of the monodromies around the punctures is endowed with a system of holomorphic Darboux coordinates, in which the generating function of the variety of SL(2)-opers is identified with the universal part of the effective twisted superpotential of the corresponding four dimensional N=2 supersymmetric theory subject to the two-dimensional Omega-deformation. This allows to give a definition of the Yang-Yang functionals for the quantum Hitchin system in terms of the classical geometry of the moduli space of local systems for the dual gauge group, and connect it to the instanton counting of the four dimensional gauge theories, in the rank one case.
description: 25 pages, 11 figures, v1. in the proceedings of Cargese conference "String Theory: Formal Developments and Applications" (Jun 21-Jul 3, 2010); reported also at six other conferences in 2010, v2. references corrected
Supplementary Information from Fluctuations in T cell receptors and pMHC interactions regulate T cell activation
Creators: name: Egan, Joseph R.
name: Abu-Shah, Enas
name: Dushek, Omer
name: Elliott, Tim
name: MacArthur, Ben D.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: 60114 Systems Biology
subject: FOS: Biological sciences
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Mathematics supporting the main text
Capital allocation in credit portfolios in a multi-period setting
Creators: name: Pfister, Tamara
name: Utz, Sebastian
name: Wimmer, Maximilian
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: risk capital, credit risk, multi-period risk, Conditionally Independent Defaults,Copula models, capital allocation, risk contribution
subject: 330 Wirtschaft
subject: D81
subject: G21

description: This article reviews the literature on techniques of credit risk models, multi-period risk measurement, and capital allocation, and gives a tutorial on applying these techniques to credit portfolios with a focus on practical aspects. The effects of the choice of considered loss process concerning the handling of write-offs and matured assets or rating migration are displayed, and the impact on portfolio optimization decisions is discussed. We highlight the trade-off between short-term and long-term profitability and allude to the practical challenges of an application of multi-period risk measurement.
Upsilon polarization measurement at CDF
Creators: name: Kuhr, Thomas
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Measurements of production cross sections and polarizations are essential inputs for a theoretical understanding of heavy vector meson production. In this article the CDF measurement of the Y(1S) polarization in the kinematic range |y|<0.6 and 2 < pT [GeV/c] < 40 using a data sample of 2.9/fb is described. Compared to the CDF Run I measurement, with which it agrees, it extends the covered pT range, allowing for a better comparison to predictions in the perturbative regime. The observed trend towards longitudinal polarization at high transverse momentum disagrees with predictions based on non-relativistic QCD.
description: To appear in the proceedings of XVIII International Workshop on Deep-Inelastic Scattering and Related Subjects, April 19 -23, 2010, Florence, Italy
Champions and Oppressors: The Varying Roles of the Supreme Court Towards the Queer Community
Creators: name: Louras, Ian
Publisher: name: University of Chicago
Year: 2022

description: The United States Supreme Court has a long history of engagement with the queer community in America. As the public consciousness slowly turns in the direction of judiciary reform, the Supreme Court’s record of both successes and failures in the arena of queer rights should be brought into consideration. In this qualitative study, I interviewed professionals and subject matter experts from across the spectrum of queer-rights causes and Supreme Court studies, bringing responses into conversation with past research and historical reality. Interviews were conducted on a semi-structured basis, tailored to the specific expertise of the interviewee; responses were manually examined to uncover patterns and common threads in the data. This analysis yielded that the queer community tends to be extremely leery and even fearful of the Supreme Court because of its past role in suppressing the community and its failure to provide queer people with basic rights without massive political pressure. These behaviors are primarily a result of excessive politicization and polarization of the Supreme Court, which is institutional in nature and can only be resolved through direct judicial reform efforts. The reform option most conducive to repairing the divide between the Court and the community would involve establishing a set of term limits for Supreme Court justices, ideally the proposed system of eighteen-year terms. As America enters a new era of the struggle for queer rights, it is vital to understand the roles played by institutional actors such as the Supreme Court and develop reform measures that can leverage those actors in ways beneficial for the queer community, as well as other marginalized communities.
title: "Cratere con scene di danza", arte romana, inv. CXVI (ITA/EN)
title: Scheda catalogo digitale Borghese
titleType: AlternativeTitle
Creators: name: Ciccarello, Giulia
name: Galleria Borghese
Publisher: name: Galleria Borghese
Year: 2024

description: Pubblicazione delle schede delle opere conservate nel museo ed estratte dal catalogo digitale di

Galleria Borghese, nelle due versioni esistenti online, in italiano e inglese.

Collegamento al catalogo digitale:

ITA: https://www.collezionegalleriaborghese.it/

EN: https://www.collezionegalleriaborghese.it/en
Density-functional Calculation of Structural Properties in Ionic and Semiconductor Crystals
Creators: name: Schmalzl, Karin
name: Deinzer, Gernot
name: Malorny, Michael
name: Strauch, Dieter
Publisher: name: Universität Regensburg
Year: 2005
Subjects: subject: 530 Physik

description: We compare the results of different ab-initio density-functional methods (Wien97, VASP, ABINIT, PWscf) and approximations for the electronic, structural, and dynamical properties of a variety of single crystals, namely the ionic conductors CaF2, BaF2, ZrO2, and LaF3, and the semiconductors CdS and CdSe. In particular, we have ported the PWscf code to the Hitachi computer. These results are basic for the more extensive and current calculations of the static and lattice-dynamical properties of these systems as well as of systems like ZrO2−δ and mixed-crystal systems like CdSxSe1−x . We also report preliminary neutron scattering data at various temperatures for the structure of LaF3.
Ecological effects of disrupting plant-animal interactions
Creators: name: Granados, Alys
Publisher: name: University of British Columbia
Year: 2017

description: Human disturbances threaten tropical forests, potentially disrupting plant-animal interactions. Though many studies have assessed the effects of habitat disturbance on either plants or animals, we have a limited understanding of how disrupted interactions will affect both groups of interacting species and whether impacts vary with spatial scale. This hinders our ability to predict how logging, a widespread threat to tropical forests, affects plant and animal communities, particularly in combination with overhunting, a common co-occurring threat. I excluded small to large-bodied mammals from research plots in logged and unlogged forests in Borneo to quantify the effects of logging and hunting on seed predation and establishment in five dominant tree species (Chapter 2). Granivore-induced seed mortality was higher in logged forest. Defaunation did not affect seed mortality. Seedling establishment was highest when small to large-bodied mammals were excluded in logged forest, suggesting that the effects of logging and hunting interact to alter seedling recruitment. I used the same animal exclusion plots to assess impacts on diversity and the distribution of morphological traits in tagged seedling communities over four years (Chapter 3). Excluding small to large vertebrates did not affect overall seedling diversity but animals disproportionately killed seedlings from large-fruited genera in logged forest, reducing community fruit size. Animals altered plant traits, though impacts may be underestimated by focusing only on changes to taxonomic diversity. Selective logging can also intensify the patchiness of food availability across the landscape. Spatiotemporal variability in food abundance is especially pronounced during mast fruiting events, yet the consequences for animal habitat use at different spatial scales in faunally intact systems is unclear. I used camera traps to estimate the site use of several vertebrate species across two dipterocarp mast years and a non-mast year at large and small spatial scales (Chapter 4). Site use was positively associated with masting for several taxa, though strong response were mostly limited to intact forest. Even key consumers (bearded pigs) showed reduced responses in the logged forest at the small scale. Overall, my work demonstrates that anthropogenic disturbances disrupt plant-animal interactions by altering plant recruitment and limiting vertebrate responses to resource availability.
title: МЯСО ИНДЕЙКИ ДЛЯ ПРОДУКТОВ ДЕТСКОГО ПИТАНИЯ
Creators: name: Аракчеева, Елена Николаевна
name: Головко, Елена Николаевна
name: Синельщикова, Ирина Алексеевна
name: Забашта, Николай Николаевич
Publisher: name: ФГБНУ КНЦЗВ
Year: 2021

description: По результатам убоя пятимесячных индеек двух кроссов – «Белая широкогрудая» и «Хайбрид конвертер», установлены высокие показатели мясной продуктивности: убойный выход (81,2 и 85,0 %), выход мяса, пригодного для детского питания - 62 % и 65 %, выход белого мяса грудки - 23 и 25 %, соответственно, для кроссов «Белая широкогрудая» и «Хайбрид конвертер». Мясо индейки обоих кроссов имело высокий белковый качественный показатель 7,1 и 7,2.
Every State on Interval Effect Algebra is Integral
Creators: name: Dvurečenskij, Anatolij
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We show that every state on an interval effect algebra is an integral through some regular Borel probability measure defined on the Borel $σ$-algebra of a compact Hausdorff simplex. This is true for every effect algebra satisfying (RDP) or for every MV-algebra. In addition, we show that each state on an effect subalgebra of an interval effect algebra $E$ can be extended to a state on $E.$ Our method represents also every state on the set of effect operators of a Hilbert space as an integral
Does clinical teacher training always improve teaching effectiveness as opposed to no teacher training? A randomized controlled study
Creators: name: Breckwoldt, Jan
name: Svensson, Jörg
name: Lingemann, Christian
name: Gruber, Hans
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: Expertise; Faculty development; Standardized clinical examination; Teacher training; Teaching effectiveness
subject: 370 Erziehung, Schul- und Bildungswesen

description: Background Teacher training may improve teaching effectiveness, but it might also have paradoxical effects. Research on expertise development suggests that the integration of new strategies may result in a temporary deterioration of performance until higher levels of competence are reached. In this study, the impact of a clinical teacher training on teaching effectiveness was assessed in an intensive course in emergency medicine. As primary study outcome students’ practical skills at the end of their course were chosen. Methods The authors matched 18 clinical teachers according to clinical experience and teaching experience and then randomly assigned them to a two-day-teacher training, or no training. After 14 days, both groups taught within a 12-hour intensive course in emergency medicine for undergraduate students. The course followed a clearly defined curriculum. After the course students were assessed by structured clinical examination (SCE) and MCQ. The teaching quality was rated by students using a questionnaire. Results Data for 96 students with trained teachers, and 97 students with untrained teachers were included. Students taught by untrained teachers performed better in the SCE domains ‘alarm call’ (p
Additional File 1
Creators: name: Lozada, Dennis Nicuh
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310207
subject: Statistical and quantitative genetics
classificationCode: 310506
subject: Gene mapping

description: Table S1. Marker density and linkage disequilibrium overview for intrachromosomal marker pairs used for association study. Table S2. Common significant markers detected among the four phenotypic datasets using multi-locus GWAS methods. Table S3. Candidate genes for the common significant SNP markers and their location and potential biological functions for Capsicum annuum. Table S4. Names and classification of the accessions used in the study.
The effects of age, rank and neophobia on social learning in horses
Creators: name: Krueger, Konstanze
name: Farmer, Kate
name: Heinze, Jürgen
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: Horse ∙ Social learning ∙ Sociality ∙ Ecology ∙ Social relationships
subject: 500 Naturwissenschaften
subject: 590 Tiere (Zoologie)

description: Social learning is said to meet the demands of complex environments in which individuals compete over resources and cooperate to share resources. Horses (Equus caballus) were thought to lack social learning skills because they feed on homogenously distributed resources with few reasons for conflict. However, the horse’s social environment is complex, which raises the possibility that its capacity for social transfer of feeding behaviour has been underestimated. We conducted a social learning experiment using 30 socially kept horses of different ages. Five horses, one from each group, were chosen as demonstrators, and the remaining 25 horses were designated observers. Observers from each group were allowed to watch their group demonstrator opening a feeding apparatus. We found that young, low-ranking and more exploratory horses learned by observing older members of their own group, and the older the horse, the more slowly it appeared to learn. Social learning may be an adaptive specialisation to the social environment. Older animals may avoid the potential costs of acquiring complex and potentially disadvantageous feeding behaviours from younger group members. We argue that horses show social learning in the context of their social ecology and that research procedures must take such contexts into account. Misconceptions about the horse’s sociality may have hampered earlier studies.
„Frage stellen, Antwort bekommen, weiterarbeiten!“ – Umfrage zur Benutzung von UpToDate an den Universitäten Freiburg, Leipzig, Münster und Regensburg
Creators: name: Obst, Oliver
name: Hofmann, Christiane
name: Knüttel, Helge
name: Zöller, Petra
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: UpToDate, Point of Care, Krankenversorgung, Multicenter-Studie, Medizinbibliothek
subject: 020 Bibliotheks- und Informationswissenschaft

description: UpToDate ist eine evidenzbasierte, von Ärzten erstellte Ressource zur Unterstützung der klinischen Entscheidungsfindung mit weitem Verbreitungsgrad in Deutschland. In einer Multicenter-Studie wurden Mediziner, Studierende, Wissenschaftler und sonstiges medizinisches Fachpersonal an vier deutschen Universitäten nach ihrer Nutzung und Beurteilung von UpToDate befragt. Insgesamt wurde die Umfrage 1.083-mal beantwortet, darunter von 540 Ärzten. 76% aller befragten Ärzte (aber nur 54% der Chefärzte) nutzten UpToDate. Die Unkenntnis über UpToDate betrug je nach Benutzergruppe zwischen 10 und 41%. 90 bis 95% aller klinisch tätigen Personen nannten als Hauptvorteil von UpToDate die schnelle, allgemeine Übersicht über Diagnose und Therapie von Erkrankungen. Jeder vierte Oberarzt wies auf verringerte Liegezeiten als Folge von UpToDate hin, (fast) jeder vierte Chefarzt gab an, dass UpToDate Kosten einspare. UpToDate ist eine wichtige, aber auch kostspielige Ressource in der Patientenbehandlung und sollte – angesichts der vorhandenen Unkenntnis über die Existenz dieser Ressource – stärker von den Bibliotheken beworben werden.
title: Railway arches, entrepreneurs, and culture-led urban regeneration
Creators: name: Ashton, Daniel
Publisher: name: University of Southampton
Year: 2018

description: This article focuses on the role of entrepreneurs in culture-led urban regeneration and the transformation of industrial sites. Specifically, this article will consider entrepreneur-led regeneration in the UK with reference to two examples from the UK: "a space arts" in Hampshire and "Arch Creatives" in Leamington Spa, Warwickshire. This article will argue for the continued emphasis on existing creative industries activities when evaluating culture-led urban regeneration.
RNOP-09: pegylated liposomal doxorubicine and prolonged temozolomide in addition to radiotherapy in newly diagnosed glioblastoma--a phase II study
Creators: name: Beier, Christoph P.
name: Schmid, Christina
name: Gorlia, Thierry
name: Kleinletzenberger, Christine
name: Beier, Dagmar
name: Grauer, Oliver
name: Steinbrecher, Andreas
name: Hirschmann, Birgit
name: Brawanski, Alexander
name: Dietmaier, Christopher
name: Jauch-Worley, Tanja
name: Kölbl, Oliver
name: Pietsch, Torsten
name: Proescholdt, Martin A.
name: Rümmele, Petra
name: Muigg, Armin
name: Stockhammer, Günther
name: Hegi, Monika
name: Bogdahn, Ulrich
name: Hau, Peter
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: 610 Medizin
subject: Adolescent
subject: Adult
subject: Aged
subject: Central Nervous System Neoplasms/radiotherapy
subject: Combined Modality Therapy
subject: Dacarbazine/analogs & derivatives
subject: Doxorubicin/analogs & derivatives
subject: Drug Administration Schedule
subject: Drug Therapy, Combination
subject: Drug-Related Side Effects and Adverse Reactions
subject: Female
subject: Glioblastoma/radiotherapy
subject: Humans
subject: Male
subject: Middle Aged
subject: Polyethylene Glycols/adverse effects
subject: Young Adult

description: Together, the investigated combination is tolerable and feasible. Neither the addition of PEG-Dox nor the prolonged administration of Temozolomide resulted in a meaningful improvement of the patient's outcome as compared to the EORTC26981/NCIC-CE.3 data.
Irreducible triangulations of surfaces with boundary
Creators: name: Boulch, Alexandre
name: de Verdière, Éric Colin
name: Nakamoto, Atsuhiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C10, 57M15, 57N05

description: A triangulation of a surface is irreducible if no edge can be contracted to produce a triangulation of the same surface. In this paper, we investigate irreducible triangulations of surfaces with boundary. We prove that the number of vertices of an irreducible triangulation of a (possibly non-orientable) surface of genus g>=0 with b>=0 boundaries is O(g+b). So far, the result was known only for surfaces without boundary (b=0). While our technique yields a worse constant in the O(.) notation, the present proof is elementary, and simpler than the previous ones in the case of surfaces without boundary.
Upgrade of the ATLAS Muon Trigger for the SLHC
Creators: name: Dubbert, Jörg
name: Horvat, Sandra
name: Kortner, Oliver
name: Kroha, Hubert
name: Richter, Robert
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The outer shell of the ATLAS experiment at the LHC consists of a system of toroidal air-core magnets in order to allow for the precise measurement of the transverse momentum p$_T$ of muons, which in many physics channels are a signature of interesting physics processes. For the precise determination of the muon momentum Monitored Drift Tube chambers (MDT) with high position accuracy are used, while for the fast identification of muon tracks chambers with high time resolution are used, able to select muons above a predefined p$_T$ threshold for use in the first Level of the ATLAS triggering system (Level-1 trigger). When the luminosity of the LHC will be upgraded to 4-5 times the present nominal value (SLHC) in about a decade from now, an improvement of the selectivity of the ATLAS Level-1 triggering system will be mandatory in order to cope with the maximum allowed trigger rate of 100 kHz. For the Level-1 trigger of the ATLAS muon spectrometer this means an increase of the p$_T$ threshold for single muons. Due to the limited spatial resolution of the trigger chambers, however, the selectivity for tracks above ~20 GeV/c is insufficient for an effective reduction of the Level-1 rate. We describe how the track coordinates measured in the MDT precision chambers can be used to decisively improve the selectivity for high momentum tracks. The resulting increase in latency will also be discussed.
description: These are the proceedings of a presentation given at the Topical Workshop of Electronics for Particle Physics 2010 in Aachen, Germany (sept., 20-24, 2010)
The impact of obesity on surgical site infections in low risk procedures : a systematic review
Creators: name: Daniels, Sandra
Publisher: name: University of British Columbia
Year: 2017

description: Background: While obesity has been identified as a risk factor for post-operative surgical site infections in general, it is unclear if obesity is a risk factor for surgical site infections for low risk surgeries. Methods: A systematic review was conducted by searching PubMed, EMBASE, CINAHL and hand searching the references of included studies. Articles were included if the type of surgical procedure was low risk regardless of type of setting where the research was undertaken. All studies that used any obesity measurement were included if surgical site infections were the outcome of interest. Results: Three hundred and twenty-nine articles from three databases were identified. A full-text review of 58 articles that met inclusion criteria yielded 19 studies that were included in the analyses. Six studies had good study quality, 10 studies had fair study quality and three studies had poor study quality. Variations were noted among these studies in relation to definition of surgical site infection and cutoff levels used to define obesity. Due to heterogeneity of the definitions for surgical site infections, cutoff points for obesity and comparators, and variability of study quality, results from the studies could not answer the research question. Conclusion: The relationship between surgical site infections and obesity in the context of low risk surgeries is not yet determined. Future research should focus on patient safety reviews for low risk procedures, determine best methods to accurately measure obesity, and review obesity as a risk factor for patients undergoing low risk surgeries in all settings.
title: О ВОЗРАСТЕ УБОЯ БЫЧКОВ СИММЕНТАЛЬСКОЙ ПОРОДЫ НА ДЕТСКОЕ ПИТАНИЕ
Creators: name: Забашта, Николай Николаевич
name: Головко, Елена Николаевна
name: Синельщикова, Ирина Алексеевна
name: Андросова, Анастасия Николаевна
name: Марченко, Александра Юрьевна
Publisher: name: ФГБНУ КНЦЗВ
Year: 2021

description: На базе ООО Фирма «Хаммер» Республики Карачаево-Черкессия проведены исследования влияния сроков убоя симментальских бычков на мясную продуктивность, технологические свойства говядины, соответствие стандарту для детского питания ГОСТ 31798-2012. В соответствии со стандартом для производства детского питания живая масса симментальских бычков достигла в 18 месяцев 510,1±28,3 кг при максимально допустимой - 580 кг. Живая масса бычков в 24 месяца составила 679,8±31,2 кг, что  выше предельно допустимой для детского питания на 17,2 %. Содержание белка в длиннейшей мышце 18-месячных бычков составило 21,67 %, что на 15,3 % выше, чем у более молодых в 15 мес., и на 11,8 % выше, чем у двухлетних.
Short-term effective treatment of CNS metastasis of sarcomatoid renal cell carcinoma with temozolomide and pegylated liposomal doxorubicin: A case report
Creators: name: Beier, Dagmar
name: Schuierer, Gerhard
name: Beier, Christoph P.
name: Bogdahn, Ulrich
Publisher: name: Universität Regensburg
Year: 2008
Subjects: subject: 610 Medizin

description: Sarcomatoid renal cell carcinoma represents high-grade transformation of different subtypes of renal cell carcinoma and is associated with a dismal prognosis and high resistance to chemotherapy. We report on the course of disease of a 63 years old patient undergoing a nearly complete remission of multiple intracranial and spinal metastatic lesions of a sarcomatoid renal cell carcinoma by a combined chemotherapy with temozolomide and pegylated liposomal doxorubicin.