cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparing time versus money in sunk cost effects: Replication of Soman (2001)
Creators: name: Kwok Tin Ho
name: Wenkai Song
name: Chow Lok Ching Estelle
name: Feldman, Gilad
name: Petrov, Nikolay
name: Cheuk Nam Lau
name: Megan, Chan Yin Kan
name: Yan, Lo Wai
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: decision making
subject: money
subject: replication
subject: judgment
subject: sunk costs
subject: time

description: Freezing and pre-reg PCIRR stage 1 folder following IPA from PCI-RR.
Using bootstrap for statistical inference on random graphs
Creators: name: Thompson, Mary E.
name: Ramirez, Lilia Leticia Ramirez
name: Lyubchich, Vyacheslav
name: Gel, Yulia R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: In this paper, we propose new nonparametric approach to network inference that may be viewed as a fusion of block sampling procedures for temporally and spatially dependent processes with the classical network methodology. We develop estimation and uncertainty quantification procedures for network mean degree using a "patchwork" sample and nonparametric bootstrap, under the assumption of unknown degree distribution. We investigate asymptotic properties of the proposed patchwork bootstrap procedure and present cross-validation methodology for selecting an optimal patch size. We validate the new patchwork bootstrap on simulated networks with short and long tailed mean degree distributions, and revisit the Erdos collaboration data to illustrate the proposed methodology.
description: The paper has been withdrawn by the authors: a general revision of methodology is needed
Brief an [Nicolas Brulart] de Sillery
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1600

description: von [Hans Jakob vom Staal]
description: Brief Nr. 451, auf der ersten Seite befindet sich Nr. 29.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
First principles study of Co‐catalyzed MgH2 for CO2 capture and conversion
Creators: name: Rozas Azcona S.1,2, Aparicio Martínez S.1,2, * And AtilhanM.3, *
Publisher: name: Zenodo
Year: 2023
Subjects: Toxicology

description: Greenhouse gases emissions, especially CO2, have dramatically increased in the last
 decades. Hence, concern over the reduction of the rising CO2 atmospheric concentration
 (above 400 ppm) have led to the development of carbon capture and
 utilization (CCUs) technologies or carbon capture and storage (CCSs) methods. • For this purpose, designed materials with high carbon dioxide affinity are needed.
 Previous experimental works reported by our group1 have shown reduction and conversion
 of carbon dioxide pure gas employing magnesium hydride as hydrogen supplier
 showing great cobalt catalytic activity. • In this work, Density Functional Theory was applied to comprehend, from an atomistic
 point of view, the interaction mechanism of carbon dioxide adsorption on magnesium
 hydride and cobalt catalyzed magnesium hydride systems.
Architectural Interoperability Framework
Creators: name: Blobel, Bernd
name: Oemig, Frank
name: Lopez, D.M.
name: Gonzalez, C.
Publisher: name: Universität Regensburg
Year: 2011
Subjects: subject: 610 Medizin

description: Based on the long-term work of scientific institutions and SDOs dedicated to system architectures, an interoperability framework is presented to help navigating through existing, emerging and even future standards for comprehensive interoperability of health and social services. HL7 artifacts as well as work product of competing organizations are classified and semi-formally interrelated. The methodology is proven in many standard developments and health information systems implementation projects.
Probing small-scale cosmological fluctuations with the 21 cm forest: effects of neutrino mass, running spectral index and warm dark matter
Creators: name: Shimabukuro, Hayato
name: Ichiki, Kiyotomo
name: Inoue, Susumu
name: Yokoyama, Shuichiro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Although the cosmological paradigm based on cold dark matter and adiabatic, nearly scale-invariant primordial fluctuations is consistent with a wide variety of existing observations, it has yet to be sufficiently tested on scales smaller than those of massive galaxies, and various alternatives have been proposed that differ significantly in the consequent small-scale power spectrum (SSPS) of large-scale structure. Here we show that a powerful probe of the SSPS at $k\gtrsim 10$ Mpc$^{-1}$ can be provided by the 21 cm forest, that is, systems of narrow absorption lines due to intervening, cold neutral hydrogen in the spectra of high-redshift background radio sources in the cosmic reionization epoch. Such features are expected to be caused predominantly by collapsed gas in starless minihalos, whose mass function can be very sensitive to the SSPS. As specific examples, we consider the effects of neutrino mass, running spectral index (RSI) and warm dark matter (WDM) on the SSPS, and evaluate the expected distribution in optical depth of 21 cm absorbers out to different redshifts. Within the current constraints on quantities such as the sum of neutrino masses $\sum m_ν$, running of the primordial spectral index $d n_s/d \ln k$ and WDM particle mass $m_{\rm WDM}$, the statistics of the 21 cm forest manifest observationally significant differences that become larger at higher redshifts. In particular, it may be possible to probe the range of $m_{\rm WDM} \gtrsim 10$ keV that may otherwise be inaccessible. Future observations of the 21 cm forest by the Square Kilometer Array may offer a unique and valuable probe of the SSPS, as long as radio sources such as quasars or Population III gamma-ray bursts with sufficient brightness and number exist at redshifts of $z \gtrsim$ 10 - 20, and the astrophysical effects of reionization and heating can be discriminated.
description: 12pages, 11 figures, accepted for publication in PRD
S5 - PCA scores for FA component from Exploring fluctuating asymmetry in two recovering populations of the Eurasian otter
Creators: name: Russo, Luca Francesco
name: Loy, Anna
name: Lanzetti, Agnese
name: Goswami, Anjali
name: Meloro, Carlo
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310404
subject: Evolution of developmental systems

description: S2 - PC1 and PC2 scores from Principal Component Analysis run on the fluctuating asymmetry component of shape. Colours refer to populations, symbol shape to sexes
Brief [Jost] Pfiffero
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1599

description: von Jo[hann] Jac[obus vom] Staal
description: Brief Nr. 352, befindet sich auf der Rückseite von Nr. 118.
description: Lateinisch
description: Verzeichnung=Description=Inventaire August 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Ocean/wind power ecological baseline studies January 2008 - December 2009
Creators: name: Geo-Marine
Publisher: name: Not given
Year: 2010

description: The State of New Jersey is committed to finding long-term energy solutions and is pursuing alternativeenergy options. Offshore wind may provide a solution to New Jersey’s long-term energy needs. There arelimited data and information on the natural resources and their environment occurring in New Jersey’soffshore waters, specifically the region being considered for wind turbine development. Geo-Marine, Inc.(GMI) was contracted to conduct a scientific baseline study by the New Jersey Department ofEnvironmental Protection (NJDEP) Office of Science to fill major data gaps for birds, sea turtles, marinemammals, and other natural resources and their environments found in the Study Area. The objective of this study was to conduct baseline studies in waters off New Jersey’s coast to determinethe current distribution and usage of this area by ecological resources. The goal was to provide GIS anddigital spatial and temporal data on various species utilizing these offshore waters to assist in determiningpotential areas for offshore wind power development. The scope of work includes the collection of data onthe distribution, abundance and migratory patterns of avian, marine mammal, sea turtle and other speciesin the study area over a 24-month period. In addition to the data collected on biotic resources, physical parameters within the Study Area weremeasured, including wind speeds, water temperature, salinity, depth, chlorophyll, and dissolved organicmatter. Extensive literature searches were also conducted on climate, currents and circulation patterns,and other important physiographic components in effort to characterize the Study Area and gainunderstanding of the relationships between the physical and biological resources.
Study of the toxicity and the antimicrobial activity of different forms of ZnO nanoparticles
Creators: name: Natalia Fernández-Pampín1 , Rocío Barros1, Sonia Martel Martín1 , Olavo Cardozo2,3, Andreas Stingl2, Patricia Farias2,4 , Alejandra García-Gómez5, Elisa Peña5 , Carlos Rumbo1
Publisher: name: Zenodo
Year: 2023

description: Zinc oxide nanoparticles (ZnO NPs) have a multiple applications due to their
 special physico-chemical and antimicrobial properties. Moreover, they are
 inexpensive and less cytotoxic than others metal nanoparticles. The
 increasing use of the ZnO NPs in different sectors has raised concerns about
 their potential risks for the workers, consumers and environment. The posible toxic effects of different zinc oxide nanomaterials (G-ZnO,
 ZnO and ZnO:Mn) on the respiratory system and their irritant potential were
 evaluated. The antimicrobial activity of G-ZnO, ZnO and ZnO:Mn was analysed
 against Gram positive (methicillin-resistant S. aureus and vancomycinresistant
 E. faecium) and Gram negative (A. baumannii and P. aeruginosa)
 bacteria.
Brief [...] Patribus ac [...] D[omi]no Provinciali ac reliquis presbyteris S. Francisci, primeo [...] quos Capucinos vocant, id temporis Altorphij Urorum in Capitulo Generali congregatis
Creators: name: Stand Solothurn
name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1603

description: von Co[n]s[ule]s ac Senat[us der Stadt Solothurn] und [Hans Jakob vom Staal]
description: Brief Nr. 220, befindet sich auf der Rückseite von Nr. 5.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Mai 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief Fr[ançois] Hotmanno
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1591

description: von [Hans Jakob] de Stal
description: Brief Nr. 210, auf der ersten Seite befindet sich Nr. 25.
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief an Thomæ Hendelio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1592

description: von [Hans Jakob vom Staal]
description: Brief Nr. 204, befindet sich auf der Rückseite von Nr. 4.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Mai 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Some more details of minimal-Landau-gauge Yang-Mills propagators
Creators: name: Maas, Axel
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The propagators of the elementary degrees of freedom of (minimal-)Landau-gauge Yang-Mills theory have been a useful tool in various investigations. However, in lattice calculations they show severe dependencies on lattice artifacts. This problem has been addressed for various subsets of lattice artifacts and various subsets of propagators over the time. Here, an extended study of all propagators in momentum space, and for the gluon also in position space, as well as derived quantities like the running coupling, is provided simultaneously for two, three, and four dimensions over one or more orders of magnitude in both physical volume and lattice spacing, in lower dimensions also over more than two orders of magnitude for the gauge group SU(2). Most of the known qualitative results are confirmed, but two quantities also indicate a slight, but possibly interesting deviation.
description: v2: 43 pages, 25 figures - layout improved with bigger figures and panels divided into figures, hence the increase in length. Otherwise only minor changes, and an extended discussion of lattice artifacts. Version to appear in PRD. v1: 28 pages, 14 figures
Controlling the interactions of a few cold Rb Rydberg atoms by radiofrequency-assisted Förster resonances
Creators: name: Tretyakov, D. B.
name: Entin, V. M.
name: Yakshina, E. A.
name: Beterov, I. I.
name: Andreeva, C.
name: Ryabtsev, I. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Long-range interactions between cold Rydberg atoms, which are used in many important applications, can be enhanced using Förster resonances between collective many-body states controlled by an external electric field. Here we report on the first experimental observation of highly-resolved radio-frequency-assisted Förster resonances in a few cold Rb Rydberg atoms. We also observed radio-frequency-induced Förster resonances which cannot be tuned by a dc electric field. They imply an efficient transition from van der Waals to resonant dipole-dipole interaction due to Floquet sidebands of Rydberg levels appearing in the rf-field. This method can be applied to enhance the interactions of almost arbitrary Rydberg atoms with large principal quantum numbers.
description: 5 pages, 4 figures
S3 – Landmarks location and coordinates. from Exploring fluctuating asymmetry in two recovering populations of the Eurasian otter
Creators: name: Russo, Luca Francesco
name: Loy, Anna
name: Lanzetti, Agnese
name: Goswami, Anjali
name: Meloro, Carlo
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310404
subject: Evolution of developmental systems

description: S3 – Above, landmarks recorded on 3D reconstructions of skulls. Below, 3d original coordinates in tps format. Specimen ID is the same reported in S1 (List of specimens). Landmarks are defined as follows: 1 = Superior premaxilla; 2 = nasal suture; 3–10 = lacrimal; 4–9 = postorbital process 5–11; = zygomatic arch;6–8 = mastoid process; 7 = intersection of temporal line and sagittal crest; 12 = prosthion; 13–30 = premaxilla and nasal bone suture; 14–29 = canine alveoli; 15–28 = carnassial alveoli; 16–27 = carnassial alveoli; 17–26 = toothrow; 18–25 = palatine; 19–24 = pterygoid; 20–23 = glenoid cavity; 21–22 = occipital condyle.
Brief an Huldrico [Wytwyler]
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1589

description: von [Hans Jakob vom Staal]
description: Brief Nr. 567, befindet sich auf der Rückseite von Nr. 119.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
Tensor Networks for Lattice Gauge Theories with continuous groups
Creators: name: Tagliacozzo, Luca
name: Celi, Alessio
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss how to formulate lattice gauge theories in the Tensor Network language. In this way we obtain both a consistent truncation scheme of the Kogut-Susskind lattice gauge theories and a Tensor Network variational ansatz for gauge invariant states that can be used in actual numerical computation. Our construction is also applied to the simplest realization of the quantum link models/gauge magnets and provides a clear way to understand their microscopic relation with Kogut-Susskind lattice gauge theories. We also introduce a new set of gauge invariant operators that modify continuously Rokshar-Kivelson wave functions and can be used to extend the phase diagram of known models. As an example we characterize the transition between the deconfined phase of the $Z_2$ lattice gauge theory and the Rokshar-Kivelson point of the U(1) gauge magnet in 2D in terms of entanglement entropy. The topological entropy serves as an order parameter for the transition but not the Schmidt gap.
description: 27 pages, 25 figures, 2nd version the same as the published version
Brief Huldrico [Wytwyler]
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1590

description: von Jo[hann] Jac[ob vom] Staal
description: Brief Nr. 568.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
Identifying the Substitution Effect of Temporary Agency Employment
Creators: name: Jahn, Elke
name: Weber, Enzo
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: temporary agency employment, substitution effect, Germany
subject: 330 Wirtschaft
subject: C32
subject: J21
subject: J41

description: This paper fills a gap in the literature by investigating whether temporary agency employment substitutes regular employment. To take into account the interaction between the two employment forms, we identify a SVAR model with correlated innovations by volatility regimes. We show that a positive shock to temporary agency employment increases overall employment, but also leads to substitution of regular jobs.
Rheology of active fluids
Creators: name: Lanzaro, Alfredo
name: Gentile, Luigi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This chapter on the rheology of active fluids is an attempt to correlate theoretical and experimental work. A considerable amount of theoretical work and most of the experimental data focus on the rheology of active fluids in a Newtonian matrix, which displays uncommon macroscopic rheological behaviors, such as the apparent superfluid-like state of the pusher suspensions. The failure of the "scallop theorem" for reciprocal swimmers in a non-Newtonian matrix is highlighted. Finally, recent findings concerning the turbulent-like behaviour in concentrated systems are described in detail.
description: Preprint of a chapter in the book "Out-of-Equilibrium Soft Matter: Active Fluids", published by the Royal Society of Chemistry. Edited by Christina Kurzthaler; Luigi Gentile; Howard A Stone
Brief an [Méry] de Vic
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1603

description: Brief Nr. 525, er folgt auf der zweiten Seite auf die Nr. 102.
description: von [Hans Jakob vom Staal]
description: Kopie von zwei Schreiberhänden (Lateinisch, Französisch).
description: Lateinisch
description: Französisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief Aurelio Vergerio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1598

description: von [Hans Jakob vom Staal]
description: Brief Nr. 520, befindet sich auf der Rückseite von Nr. 136.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
First Time-dependent Study of H2 and H3+ Ortho-Para Chemistry in the Diffuse Interstellar Medium: Observations Meet Theoretical Predictions
Creators: name: Albertsson, T.
name: Indriolo, N.
name: Kreckel, H.
name: Semenov, D.
name: Crabtree, K. N.
name: Henning, Th.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The chemistry in the diffuse interstellar medium initiates the gradual increase of molecular complexity during the life cycle of matter. A key molecule that enables build-up of new molecular bonds and new molecules via proton-donation is H3+. Its evolution is tightly related to molecular hydrogen and thought to be well understood. However, recent observations of ortho and para lines of H2 and H3+ in the diffuse ISM showed a puzzling discrepancy in nuclear spin excitation temperatures and populations between these two key species. H3+, unlike H2, seems to be out of thermal equilibrium, contrary to the predictions of modern astrochemical models. We conduct the first time-dependent modeling of the para-fractions of H2 and H3+ in the diffuse ISM and compare our results to a set of line-of-sight observations, including new measurements presented in this study. We isolate a set of key reactions for H3+ and find that the destruction of the lowest rotational states of H3+ by dissociative recombination largely control its ortho/para ratio. A plausible agreement with observations cannot be achieved unless a ratio larger than 1:5 for the destruction of (1,1)- and (1,0)-states of H3+ is assumed. Additionally, an increased CR ionization rate to 10(-15) 1/s further improves the fit whereas variations of other individual physical parameters, such as density and chemical age, have only a minor effect on the predicted ortho/para ratios. Thus our study calls for new laboratory measurements of the dissociative recombination rate and branching ratio of the key ion H3+ under interstellar conditions.
description: 27 pages, 6 figures, 3 tables
Influence of sire fertility status on conceptus-induced transcriptomic response of the bovine endometrium
Creators: name: O’Callaghan, E.
name: Sánchez, J.M.
name: Rabaglino, M.B.
name: McDonald, M.
name: Liu, H.
name: Spencer, T.E.
name: Fair, Sean
name: Kenny, D.A.
name: Lonergan, P
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Biological sciences
subject: FOS: Biological sciences

description: The aim was to examine the effect of sire fertility status on conceptus-induced changes in the bovine endometrial transcriptome. To generate elongated conceptuses, Day 7 blastocysts produced in vitro using frozen-thawed sperm from Holstein Friesian bulls (3 High fertility, HF and 3 Low fertility, LF) were transferred in groups of 5–10 into synchronized heifers (n = 7 heifers per bull) and recovered following slaughter on Day 15. Day 15 endometrial explants recovered from the uterine horn ipsilateral to the corpus luteum were recovered from synchronized cyclic heifers (n = 4). Explants from each heifer were co-cultured for 6 h in RPMI medium alone (Control) or with 100 ng/ml ovine recombinant interferon tau (IFNT) or with a single conceptus from each HF or LF bull. After 6 h, explants were snap frozen and stored at −80°C. Extracted mRNA was subjected to RNA-seq and the resulting data were analyzed with R software. The numbers of differentially expressed genes (DEG; FDR<0.05) were: HF vs. Control: 956; LF vs. Control: 1021; IFNT vs. Control: 1301; HF vs. LF: 2. Unsurprisingly, the majority of DEG (658) were common to all comparisons and were related to IFNT-induced changes in the endometrium. Prior to applying the adjusted p-value, there were 700 DEG between HF and LF, with 191 and 509 genes more expressed in HF or LF, respectively (p < 0.05). Overrepresentation analysis of KEGG pathways (FDR<0.05), revealed that DEG with higher expression in LF were involved in cell cycle and proteolysis, while those upregulated DEG by HF conceptuses were strongly associated with immune process pathways, such as TNF, NF-kappa B, cytokine-cytokine receptor interaction, and TLR signaling.These pathways were also enriched by DEG upregulated by IFNT compared to the Control. Furthermore, only the HF, and not the LF group, affected the expression of most genes in these pathways (p < 0.05) according to a negative binomial regression model. Finally, a weighted gene co-expression network analysis revealed two clusters of co-expressed genes associated with the HF conceptuses (p < 0.05), which were also enriched for the aforementioned pathways. In conclusion, HF conceptuses, similar to IFNT treatment, stimulated multiple pathways involved in immune response, which were apparently not affected by LF conceptuses.
Brief an [Jean de] Bellievræo, Hautefortij
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1574

description: von [Hans Jakob vom Staal]
description: Brief Nr. 31.
description: Lateinisch
description: Verzeichnung=Description=Inventaire April 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief Joanni à Chaam
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1597

description: von [Hans Jakob vom Staal]
description: Brief Nr. 134.
description: Lateinisch
description: Verzeichnung=Description=Inventaire April 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief an Cœnobitis Beinwilensibus
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1599

description: Textgleich mit Nr. 37 bis.
description: von Jo[hann] Jac[obus vom] Staal
description: Brief Nr. 37.
description: Lateinisch
description: Verzeichnung=Description=Inventaire April 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief [Jost] Pfiffero
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1604

description: von [Hans Jakob vom Staal]
description: Brief Nr. 368, auf der ersten Seite befindet sich Nr. 106.
description: Lateinisch
description: Verzeichnung=Description=Inventaire August 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Geometrical constraints on the origin of timing signals from black holes
Creators: name: Motta, S. E.
name: Casella, P.
name: Henze, M.
name: Muñoz-Darias, T.
name: Sanna, A.
name: Fender, R.
name: Belloni, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a systematic study of the orbital inclination effects on black-hole transients fast time-variability properties. We have considered all the black-hole binaries that have been densely monitored by the Rossi XTE satellite. We find that the amplitude of low-frequency quasi periodic oscillations (QPOs) depends on the orbital inclination. Type-C QPOs are stronger for nearly edge-on systems (high inclination), while type-B QPOs are stronger when the accretion disk is closer to face-on (low inclination). Our results also suggest that the noise associated with type-C QPOs is consistent with being stronger for low-inclination sources, while the noise associated to type-B QPOs seems inclination independent. These results are consistent with a geometric origin of the type-C QPOs - for instance arising from relativistic precession of the inner flow within a truncated disk - while the noise would correspond to intrinsic brightness variability from mass accretion rate fluctuations in the accretion flow. The opposite behavior of type-B QPOs - stronger in low inclinations sources - supports the hypothesis that type-B QPOs are related to the jet, the power of which is the most obvious measurable parameter expected to be stronger in nearly face-on sources.
description: 8 pages, 6 figures, accepted by MNRAS
Brief Petro Canisio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1597

description: von [Hans Jakob vom Staal]
description: Brief Nr. 128.
description: Lateinisch
description: Verzeichnung=Description=Inventaire April 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Black holes and gravitational waves in three-dimensional f(R) gravity
Creators: name: Zhang, Hongsheng
name: Liu, Dao-Jun
name: Li, Xin-Zhou
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In the three-dimensional pure Einstein gravity, the geometries of the vacuum space-times are always trivial, and gravitational waves (gravitons) are strictly forbidden. For the first time, we find a vacuum circularly symmetric black hole with nontrivial geometries in $f(R)$ gravity theory, in which a true singularity appears. In this frame with nontrivial geometry, a perturbative gravitational wave does exist. Beyond the perturbative level, we make a constructive proof of the existence of a gravitational wave in $f(R)$ gravity, where the Birkhoff-like theorem becomes invalid. We find two classes of exact solutions of circularly symmetric pure gravitational wave radiation and absorption.
description: 6 pages, minor corrections, to match the published version
Changes of statistical structural fluctuations unveils an early compacted degraded stage of PNS myelin
Creators: name: Poccia, Nicola
name: Campi, Gaetano
name: Ricci, Alessandro
name: Caporale, Alessandra S.
name: Di Cola, Emanuela
name: Hawkins, Thomas A.
name: Bianconi, Antonio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biomolecules (q-bio.BM)
subject: Medical Physics (physics.med-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Degradation of the myelin sheath is a common pathology underlying demyelinating neurological diseases from Multiple Sclerosis to Leukodistrophies. Although large malformations of myelin ultrastructure in the advanced stages of Wallerian degradation is known, its subtle structural variations at early stages of demyelination remains poorly characterized. This is partly due to the lack of suitable and non-invasive experimental probes possessing sufficient resolution to detect the degradation. Here we report the feasibility of the application of an innovative non-invasive local structure experimental approach for imaging the changes of statistical structural fluctuations in the first stage of myelin degeneration. Scanning micro X-ray diffraction, using advances in synchrotron x-ray beam focusing, fast data collection, paired with spatial statistical analysis, has been used to unveil temporal changes in the myelin structure of dissected nerves following extraction of the Xenopus laevis sciatic nerve. The early myelin degeneration is a specific ordered compacted phase preceding the swollen myelin phase of Wallerian degradation. Our demonstration of the feasibility of the statistical analysis of SmXRD measurements using biological tissue paves the way for further structural investigations of degradation and death of neurons and other cells and tissues in diverse pathological states where nanoscale structural changes may be uncovered.
description: 16 pages, 6 figures
Numerical computations of facetted pattern formation in snow crystal growth
Creators: name: Barrett, John W.
name: Garcke, Harald
name: Nürnberg, Robert
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: A1. Computer simulation, A1. Crystal morphology, A1. Dendrites, A1. Growth models, A1. Morphological stability, A1. Solidification, A2. Growth from vapour
subject: 510 Mathematik
subject: 81.10.Aj
subject: 07.05.Tp
subject: 81.30.Fb

description: Facetted growth of snow crystals leads to a rich diversity of forms, and exhibits a remarkable sixfold symmetry. Snow crystal structures result from diffusion limited crystal growth in the presence of anisotropic surface energy and anisotropic attachment kinetics. It is by now well understood that the morphological stability of ice crystals strongly depends on supersaturation, crystal size and temperature. Until very recently it was very difficult to perform numerical simulations of this highly anisotropic crystal growth. In particular, obtaining facet growth in combination with dendritic branching is a challenging task. We present numerical simulations of snow crystal growth in two and three space dimensions using a new computational method recently introduced by the authors. We present both qualitative and quantitative computations. In particular, a linear relationship between tip velocity and supersaturation is observed. The computations also suggest that surface energy effects, although small, have a larger effect on crystal growth than previously expected. We compute solid plates, solid prisms, hollow columns, needles, dendrites, capped columns and scrolls on plates. Although all these forms appear in nature, most of these forms are computed here for the first time in numerical simulations for a continuum model.
Brief Jacobo Christophoro [Blarer von Wartensee]
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1599

description: von [Hans Jakob vom Staal]
description: Brief Nr. 78.
description: Lateinisch
description: Verzeichnung=Description=Inventaire April 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Dalitz plot studies of D0 --> K0S pi+ pi- decays in a factorization approach
Creators: name: Dedonder, J. -P.
name: Kaminski, R.
name: Lesniak, L.
name: Loiseau, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The presently available high-statistics data of the D0 --> K0S pi+ pi- processes measured by the Belle and BABAR Collaborations are analyzed within a quasi two-body QCD factorization framework. Starting from the weak effective Hamiltonian, tree and annihilation amplitudes build up the D0 --> K0S pi+ pi- decay amplitude. Two of the three final-state mesons are assumed to form a single scalar, vector or tensor state originating from a quark-antiquark pair so that the factorization hypothesis can be applied. The meson-meson final state interactions are described by K pi and pi pi scalar and vector form factors for the S and P waves and by relativistic Breit-Wigner formulae for the D waves. A combined chi^2 fit to a Belle Dalitz plot density distribution, to the total experimental branching fraction and to the tau^- --> K0S pi- nu_tau decay data is carried out to fix the 33 free parameters. These are mainly related to the strengths of the scalar form factors and to unknown meson to meson transition form factors at a large momentum transfer squared equal to the D0 mass squared. A good overall agreement to the Belle Dalitz plot density distribution is achieved. Another set of parameters fits equally well the BABAR Collaboration Dalitz plot model. The branching fractions of the dominant channels compare well with those of the isobar Belle or BABAR models.The lower-limit values of the branching fractions of the annihilation amplitudes are significant. Built upon experimental data from other processes, the unitary K pi and pi pi scalar form factors, entering our decay amplitude and satisfying analyticity and chiral symmetry constraints, are furthermore constrained by the present Dalitz plot analysis. Our decay amplitude could be a useful input for determinations of D0-D0bar mixing parameters and of the CKM angle gamma (or phi3).
description: 34 pages, 14 figures
A conductor formula for completed group algebras
Creators: name: Nickel, Andreas
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: central conductor, completed group algebras, extensions of lattices, Fitting invariants
subject: 510 Mathematik
subject: 16H10
subject: 16H20
subject: 11R23

description: Let o be the ring of integers in a �nite extension of Qp. If G is a �nite group and Γ is a maximal order containing the group ring oG, Jacobinski's conductor formula gives a complete description of the central conductor of Γ into oG in terms of characters of G. We prove a similar result for completed group algebras o[[G]], where G is a p-adic Lie group of dimension 1. We will also discuss several consequences of this result.
Brief Petro Canisio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1597

description: von [Hans Jakob vom Staal]
description: Brief Nr. 126.
description: Lateinisch
description: Verzeichnung=Description=Inventaire April 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Optically induced Aharonov-Bohm effect in mesoscopic rings
Creators: name: Sigurdsson, H.
name: Kibis, O. V.
name: Shelykh, I. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show theoretically that strong electron coupling to circularly polarized photons in non-singly-connected nanostructures results in the appearance of an artificial gauge field that changes the electron phase. The effect arises from the breaking of time-reversal symmetry and is analogous to the well-known Aharonov-Bohm phase effect. It can manifest itself in the oscillations of conductance as a function of the intensity and frequency of the illumination. The theory of the effect is elaborated for mesoscopic rings in both ballistic and diffusive regimes.
description: Published version
Competitive Fragmentation Modeling of ESI-MS/MS spectra for putative metabolite identification
Creators: name: Allen, F.
name: Greiner, R.
name: Wishart, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Electrospray tandem mass spectrometry (ESI-MS/MS) is commonly used in high throughput metabolomics. One of the key obstacles to the effective use of this technology is the difficulty in interpreting measured spectra to accurately and efficiently identify metabolites. Traditional methods for automated metabolite identification compare the target MS or MS/MS spectrum to the spectra in a reference database, ranking candidates based on the closeness of the match. However the limited coverage of available databases has led to an interest in computational methods for predicting reference MS/MS spectra from chemical structures. This work proposes a probabilistic generative model for the MS/MS fragmentation process, which we call Competitive Fragmentation Modeling (CFM), and a machine learning approach for learning parameters for this model from MS/MS data. We show that CFM can be used in both a MS/MS spectrum prediction task (ie, predicting the mass spectrum from a chemical structure), and in a putative metabolite identification task (ranking possible structures for a target MS/MS spectrum). In the MS/MS spectrum prediction task, CFM shows significantly improved performance when compared to a full enumeration of all peaks corresponding to substructures of the molecule. In the metabolite identification task, CFM obtains substantially better rankings for the correct candidate than existing methods (MetFrag and FingerID) on tripeptide and metabolite data, when querying PubChem or KEGG for candidate structures of similar mass.
description: Preprint. The final publication is available at Springer via http://dx.doi.org/10.1007/s11306-014-0676-4. Metabolomics 2014
Brief Petro Canisio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1597

description: von Jo[hann] Jac[obus vom] Staal
description: Brief Nr. 125.
description: Lateinisch
description: Verzeichnung=Description=Inventaire April 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Secure Distributed Computation of the Square Root and Applications
Creators: name: Liedel, Manuel
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: Square Root, Fixed-Point Arithmetic, Secure Computation, QR-Decomposition
subject: 004 Informatik
subject: 330 Wirtschaft

description: The square root is an important mathematical primitive whose secure, efficient, distributed computation has so far not been possible. We present a solution to this problem based on Goldschmidt's algorithm. The starting point is computed by linear approximation of the normalized input using carefully chosen coefficients. The whole algorithm is presented in the fixed-point arithmetic framework of Catrina/Saxena for secure computation. Experimental results demonstrate the feasibility of our algorithm and we show applicability by using our protocol as a building block for a secure QR-Decomposition of a rational-valued matrix.
Discharge paper of Private Daniel V. Dunham
Creators: name: New Brunswick Free Public Library
Publisher: name: No Publisher Supplied
Year: 2011

description: Photocopy of the discharge paper of Private Daniel V. Dunham of Co. C, 28th New Jersey Volunteers.Daniel V. Dunham was born in Middlesex County, NJ, and worked as a farmer prior to the war. He was enrolled on September 4th, 1862, for a 9 month term, and was mustered in on September 22nd, 1862. He was mustered out on July 6, 1863. He was likely still an inhabitant of Middlesex County during the war, as his wife received subsistence pay from the County of Middlesex.Dimensions -- 28 cm x 22 cm
Brief an Patri Fabricio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1599

description: von [Hans Jakob vom Staal]
description: Brief Nr. 170, befindet sich auf der Rückseite von Nr. 137.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Mai 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Statistical analysis of crystallization database links protein physico-chemical features with crystallization mechanisms
Creators: name: Fusco, Diana
name: Barnum, Timothy J.
name: Bruno, Andrew E.
name: Luft, Joseph R.
name: Snell, Edward H.
name: Mukherjee, Sayan
name: Charbonneau, Patrick
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: X-ray crystallography is the predominant method for obtaining atomic-scale information about biological macromolecules. Despite the success of the technique, obtaining well diffracting crystals still critically limits going from protein to structure. In practice, the crystallization process proceeds through knowledge-informed empiricism. Better physico-chemical understanding remains elusive because of the large number of variables involved, hence little guidance is available to systematically identify solution conditions that promote crystallization. To help determine relationships between macromolecular properties and their crystallization propensity, we have trained statistical models on samples for 182 proteins supplied by the Northeast Structural Genomics consortium. Gaussian processes, which capture trends beyond the reach of linear statistical models, distinguish between two main physico-chemical mechanisms driving crystallization. One is characterized by low levels of side chain entropy and has been extensively reported in the literature. The other identifies specific electrostatic interactions not previously described in the crystallization context. Because evidence for two distinct mechanisms can be gleaned both from crystal contacts and from solution conditions leading to successful crystallization, the model offers future avenues for optimizing crystallization screens based on partial structural information. The availability of crystallization data coupled with structural outcomes analyzed through state-of-the-art statistical models may thus guide macromolecular crystallization toward a more rational basis.
description: 14 pages, 8 figures, 3 tables. Accepted in Plos One
Brief Jodoco Pfiffero
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1598

description: von [Hans Jakob vom Staal]
description: Brief Nr. 312, befindet sich auf der Rückseite von Nr. 75.
description: Lateinisch
description: Verzeichnung=Description=Inventaire August 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Axions: Bose Einstein Condensate or Classical Field?
Creators: name: Davidson, Sacha
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The axion is a motivated dark matter candidate, so it would be interesting to find features in Large Scale Structures specific to axion dark matter. Such features were proposed for a Bose Einstein condensate of axions, leading to confusion in the literature (to which I contributed) about whether axions condense due to their gravitational interactions. This note argues that the Bose Einstein condensation of axions is a red herring: the axion dark matter produced by the misalignment mechanism is already a classical field, which has the distinctive features attributed to the axion condensate (BE condensates are described as classical fields). This note also estimates that the rate at which axion particles condense to the field, or the field evaporates to particles, is negligeable.
description: 11 pages, 1 figure, version accepted for publication
Phase space tomography of cold-atoms dynamics in a weakly corrugated potential
Creators: name: Zhou, Shuyu
name: Chabé, Julien
name: Salem, Ran
name: David, Tal
name: Groswasser, David
name: Keil, Mark
name: Japha, Yonathan
name: Folman, Ron
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We demonstrate tomographic reconstruction of the phase space distribution of atoms oscillating in a harmonic trap with weak potential corrugation caused by nanoscale imperfections in an atom chip. We find that deformations in these distributions are highly sensitive to anharmonic components of the potential. They are explained in terms of angular velocity dispersion of isoenergetic phase space trajectories. We show that the method is applicable for probing classical and quantum dynamics of cold atoms, and we note its importance for future technological applications.
description: 10 pages, 8 figures
Temporal Correlations Between Optical and Gamma-ray Activity in Blazars
Creators: name: Cohen, Daniel P.
name: Romani, Roger W.
name: Filippenko, Alexei V.
name: Cenko, S. Bradley
name: Lott, Benoit
name: Zheng, WeiKang
name: Li, Weidong
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have been using the 0.76-m Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory to optically monitor a sample of 157 blazars that are bright in gamma rays, being detected with high significance ($\ge 10σ$) in one year by the Large Area Telescope (LAT) on the {\it Fermi Gamma-ray Space Telescope}. We attempt to observe each source on a 3-day cadence with KAIT, subject to weather and seasonal visibility. The gamma-ray coverage is essentially continuous. KAIT observations extend over much of the 5-year {\it Fermi} mission for several objects, and most have $>100$ optical measurements spanning the last three years. These blazars (flat-spectrum radio quasars and BL~Lac objects) exhibit a wide range of flaring behavior. Using the discrete correlation function (DCF), here we search for temporal relationships between optical and gamma-ray light curves in the 40 brightest sources in hopes of placing constraints on blazar acceleration and emission zones. We find strong optical--gamma-ray correlation in many of these sources at time delays of $\sim 1$ to $\sim 10$ days, ranging between $-40$ and +30 days. A stacked average DCF of the 40 sources verifies this correlation trend, with a peak above 99% significance indicating a characteristic time delay consistent with 0 days. These findings strongly support the widely accepted leptonic models of blazar emission. However, we also find examples of apparently uncorrelated flares (optical flares with no gamma-ray counterpart and gamma-ray flares with no optical counterpart) that challenge simple, one-zone models of blazar emission. Moreover, we find that flat-spectrum radio quasars tend to have gamma rays leading the optical, while intermediate and high synchrotron peak blazars with the most significant peaks have smaller lags/leads.