cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Small-scale contact angle mapping on undisturbed soil surfaces
Creators: name: Bachmann, Jörg
name: Goebel, Marc-Oliver
name: Woche, Susanne K.
Publisher: name: Berlin : Walter de Gruyter
Year: 2013
Subjects: subject: Hydrophobicity
subject: Sessile drop method
subject: Soil water repellency
subject: Water drop penetration time
subject: Wettability
subject: water-repellency
subject: organic-matter
subject: porous-media
subject: wettability
subject: decomposition
subject: sorptivity
subject: ethanol
subject: flow
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: Research of the last years pointed out that most soils are neither completely hydrophilic nor hydrophobic, but exhibit a subcritical level of water repellency (i.e. contact angle, CA > 0 degrees and < 90 degrees). Soil water repellency (SWR) is mainly caused by organic compounds of different origin and structure, showing the relevance of biofilms and organic coatings present at many particle surfaces. Despite the importance of SWR for hydraulic processes like preferential flow phenomena, generation of heterogeneous moisture patterns, or surface run-off generation, detailed investigations on the spatial variability of SWR at various scales have rarely been carried out. We introduce a new and easy-to-apply operation for measuring the spatial distribution of SWR using a modified sessile drop method for direct optical assessment of CA at a small scale. The specific objectives of this paper are to apply a sampling and preparation technique that preserves the original spatial arrangement of soil particles and to characterize soil wettability in terms of CA at a high spatial resolution. Results revealed that the sampling and preparation technique allows determination of CA at the millimeter scale using droplets of 1 mu L volume. Direct measurement on grain surfaces of the sand fraction is possible for grain sizes > 300 mu m using drop volumes down to 0.1 mu L. Geostatistical evaluation showed that the measurement grid scale is below the range of spatial dependency for droplets of 1 mu L volume, but not for measurements on single grains (pure nugget effect). Results show further that the small-scale differences in wettability, especially for CA < 90 degrees, cannot be detected by the conventional WDPT test. From these findings it can be concluded that the proposed technique allows the identification of small-scale variations in wettability that may promote the formation of heterogeneous flow fields and moisture patterns in soil under unsaturated conditions.
On the Equality of Ordinary and Symbolic Powers of Ideals
Creators: name: Hosry, Aline
name: Kim, Youngsu
name: Validashti, Javid
Publisher: name: arXiv
Year: 2013
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13

description: We consider the following question concerning the equality of ordinary and symbolic powers of ideals. In a regular local ring, if the ordinary and symbolic powers of a one-dimensional prime ideal are the same up to its height, then are they the same for all powers? We provide supporting evidence of a positive answer for classes of prime ideals defining monomial curves or rings of low multiplicities.
Transcriptional Reprogramming of Rice Cells by Xanthomonas oryzae TALEs
Creators: name: Mücke, Stefanie
name: Reschke, Maik
name: Erkes, Annett
name: Schwietzer, Claudia-Alice
name: Becker, Sebastian
name: Streubel, Jana
name: Morgan, Richard D.
name: Wilson, Geoffrey G.
name: Grau, Jan
name: Boch, Jens
Publisher: name: Lausanne : Frontiers Media
Year: 2019
Subjects: subject: TALE
subject: Xanthomonas oryzae
subject: genome
subject: plant pathogen
subject: rice
subject: salicylic acid
subject: type III effector
subject: virulence
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Rice-pathogenic Xanthomonas oryzae bacteria cause severe harvest loss and challenge a stable food supply. The pathogen virulence relies strongly on bacterial TALE (transcription activator-like effector) proteins that function as transcriptional activators inside the plant cell. To understand the plant targets of TALEs, we determined the genome sequences of the Indian X. oryzae pv. oryzae (Xoo) type strain ICMP 3125T and the strain PXO142 from the Philippines. Their complete TALE repertoire was analyzed and genome-wide TALE targets in rice were characterized. Integrating computational target predictions and rice transcriptomics data, we were able to verify 12 specifically induced target rice genes. The TALEs of the Xoo strains were reconstructed and expressed in a TALE-free Xoo strain to attribute specific induced genes to individual TALEs. Using reporter assays, we could show that individual TALEs act directly on their target promoters. In particular, we show that TALE classes assigned by AnnoTALE reflect common target genes, and that TALE classes of Xoo and the related pathogen X. oryzae pv. oryzicola share more common target genes than previously believed. Taken together, we establish a detailed picture of TALE-induced plant processes that significantly expands our understanding of X. oryzae virulence strategies and will facilitate the development of novel resistances to overcome this important rice disease.
A T(1) theorem for entangled multilinear dyadic Calderón-Zygmund operators
Creators: name: Kovač, Vjekoslav
name: Thiele, Christoph
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B20

description: We prove a boundedness criterion for a class of dyadic multilinear forms acting on two-dimensional functions. Their structure is more general than the one of classical multilinear Calderón-Zygmund operators as several functions can now depend on the same one-dimensional variable. The study of this class is motivated by examples related to the two-dimensional bilinear Hilbert transform and to bilinear ergodic averages. This paper is a sequel to the prior paper arXiv:1108.0917 by the first author.
description: 20 pages
title: Endangered Species Act Section 7(a)(2) Biological Opinion for the Enhancement Permit to the Monterey Peninsula Water Management District for Implementation of the Rescue and Rearing Management Plan for the Carmel River Steelhead Rescue and Rearing Enhancement Program
titleType: Other
Creators: name: United States. National Marine Fisheries Service
Publisher: name: United States. National Marine Fisheries Service
Year: 2019

description: ESA Section 7 Consultation ; WCRO-2019-02285
Real-time manifestation of strongly coupled spin and charge order parameters in stripe-ordered nickelates via time-resolved resonant x-ray diffraction
Creators: name: Chuang, Y. D.
name: Lee, W. S.
name: Kung, Y. F.
name: Sorini, A. P.
name: Moritz, B.
name: Moore, R. G.
name: Patthey, L.
name: Trigo, M.
name: Lu, D. H.
name: Kirchmann, P. S.
name: Yi, M.
name: Krupin, O.
name: Langner, M.
name: Zhu, Y.
name: Zhou, S. Y.
name: Reis, D. A.
name: Huse, N.
name: Robinson, J. S.
name: Kaindl, R. A.
name: Schoenlein, R. W.
name: Johnson, S. L.
name: Forst, M.
name: Doering, D.
name: Denes, P.
name: Schlotter, W. F.
name: Turner, J. J.
name: Sasagawa, T.
name: Hussain, Z.
name: Shen, Z. X.
name: Devereaux, T. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the order parameter dynamics of the stripe-ordered nickelate, La$_{1.75}$Sr$_{0.25}$NiO$_4$, using time-resolved resonant X-ray diffraction. In spite of distinct spin and charge energy scales, the two order parameters' amplitude dynamics are found to be linked together due to strong coupling. Additionally, the vector nature of the spin sector introduces a longer re-orientation time scale which is absent in the charge sector. These findings demonstrate that the correlation linking the symmetry-broken states does not unbind during the non-equilibrium process, and the time scales are not necessarily associated with the characteristic energy scales of individual degrees of freedom.
description: 4 figures. Accepted by Physical Review Letter
title: Endangered Species Act Section 7 Formal Consultation and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Consultation for the City of Kenmore West Sammamish River Bridge Replacement Project, King County, Washington, Federal Aid #: BRM-2411 (003)
titleType: Other
Creators: name: United States. National Marine Fisheries Service
Publisher: name: United States. National Marine Fisheries Service
Year: 2019

description: ESA Section 7 Consultation ; WCRO-2019-00298
Statistical approaches for assessment of climate change impacts on low flows: temporal aspects
Creators: name: Fangmann, Anne
name: Haberlandt, Uwe
Publisher: name: Göttingen : Copernicus GmbH
Year: 2019
Subjects: subject: Statistical model
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Climate change
subject: Econometrics
subject: FOS: Economics and business
subject: Climate model
subject: Principal component analysis
subject: Linear regression
subject: Climatology
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: The characteristics of low flow periods, especially regarding their low temporal dynamics, suggest that estimation of metrics related to these periods may be carried out using simplified statistical model approaches that base on a rudimentary input of aggregated local meteorological information. Compared to physically-based or even strongly conceptualized hydrological models, such approaches may have the advantage of being easily set up, applicable over large study areas in a fraction of the time, and easily transferrable between regions, given that predictions are made with the accuracy required for a given purpose. In this study, simplified statistical models based on multiple linear regressions for the use in regional climate change impact analysis are proposed. Study area is the German Federal State of Lower Saxony with 28 available gauges for analysis. A number of regression approaches are evaluated. An approach using principal components of local meteorological indices as input appeared to show the best performance. This model type was eventually applied to a climate model ensemble based on the RCP8.5 scenario. Analyses in the baseline period revealed that some of the meteorological indices needed for model input could not be fully reproduced by the climate models. The predictions for the future show an overall increase in the lowest average 7-day flow (NM7Q), projected by the majority of ensemble members and for the majority of stations.
Statistical approaches for identification of low-flow drivers: Temporal aspects
Creators: name: Fangmann, Anne
name: Haberlandt, Uwe
Publisher: name: Göttingen : Copernicus GmbH
Year: 2019
Subjects: subject: Atmospheric movements
subject: Climate change
subject: Climate change impact
subject: Meteorological index
subject: Multiple linear regressions
subject: Principal Components
subject: Statistical approach
subject: Statistical modeling
subject: Temporal aspects
subject: Temporal dynamics
subject: Climate models
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The characteristics of low-flow periods, especially regarding their low temporal dynamics, suggest that the dimensions of the metrics related to these periods may be easily related to their meteorological drivers using simplified statistical model approaches. In this study, linear statistical models based on multiple linear regressions (MLRs) are proposed. The study area chosen is the German federal state of Lower Saxony with 28 available gauges used for analysis. A number of regression approaches are evaluated. An approach using principal components of local meteorological indices as input appeared to show the best performance. In a second analysis it was assessed whether the formulated models may be eligible for application in climate change impact analysis. The models were therefore applied to a climate model ensemble based on the RCP8.5 scenario. Analyses in the baseline period revealed that some of the meteorological indices needed for model input could not be fully reproduced by the climate models. The predictions for the future show an overall increase in the lowest average 7-day flow (NM7Q), projected by the majority of ensemble members and for the majority of stations.
Clouds and Hazes in Exoplanet Atmospheres
Creators: name: Marley, Mark S.
name: Ackerman, Andrew S.
name: Cuzzi, Jeffrey N.
name: Kitzmann, Daniel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Clouds and hazes are commonplace in the atmospheres of solar system planets and are likely ubiquitous in the atmospheres of extrasolar planets as well. Clouds affect every aspect of a planetary atmosphere, from the transport of radiation, to atmospheric chemistry, to dynamics and they influence - if not control - aspects such as surface temperature and habitability. In this review we aim to provide an introduction to the role and properties of clouds in exoplanetary atmospheres. We consider the role clouds play in influencing the spectra of planets as well as their habitability and detectability. We briefly summarize how clouds are treated in terrestrial climate models and consider the far simpler approaches that have been taken so far to model exoplanet clouds, the evidence for which we also review. Since clouds play a major role in the atmospheres of certain classes of brown dwarfs we briefly discuss brown dwarf cloud modeling as well. We also review how the scattering and extinction efficiencies of cloud particles may be approximated in certain limiting cases of small and large particles in order to facilitate physical understanding. Since clouds play such important roles in planetary atmospheres, cloud modeling may well prove to be the limiting factor in our ability to interpret future observations of extrasolar planets.
description: book chapter to appear in "Comparative Climatology of Terrestrial Planets" (S. Mackwell, M. Bullock, J. Harder, eds.; University of Arizona Press, 2013)
Geometric achromatic and pseudoachromatic indices
Creators: name: Aichholzer, O.
name: Araujo-Pardo, G.
name: García-Colín, N.
name: Hackl, T.
name: Lara, D.
name: Rubio-Montiel, C.
name: Urrutia, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The pseudoachromatic index of a graph is the maximum number of colors that can be assigned to its edges, such that each pair of different colors is incident to a common vertex. If for each vertex its incident edges have different color, then this maximum is known as achromatic index. Both indices have been widely studied. A geometric graph is a graph drawn in the plane such that its vertices are points in general position, and its edges are straight-line segments. In this paper we extend the notion of pseudoachromatic and achromatic indices for geometric graphs, and present results for complete geometric graphs. In particular, we show that for $n$ points in convex position the achromatic index and the pseudoachromatic index of the complete geometric graph are $\lfloor \tfrac{n^2+n}{4} \rfloor$.
description: 21 pages, 10 figures
Positivmodelle römischer Öllampen aus Poetovio
Creators: name: Saria, Balduin
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2017

description: [nicht erschienen / not available]
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 19, Nr. 1 (1935)
Motion Perceiver: Real-Time Occupancy Forecasting for Embedded Systems
Creators: name: Ferenczi, Bryce
name: Burke, Michael
name: Drummond, Tom
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.2.9; I.2.10

description: This work introduces a novel and adaptable architecture designed for real-time occupancy forecasting that outperforms existing state-of-the-art models on the Waymo Open Motion Dataset in Soft IOU. The proposed model uses recursive latent state estimation with learned transformer-based functions to effectively update and evolve the state. This enables highly efficient real-time inference on embedded systems, as profiled on an Nvidia Xavier AGX. Our model, MotionPerceiver, achieves this by encoding a scene into a latent state that evolves in time through self-attention mechanisms. Additionally, it incorporates relevant scene observations, such as traffic signals, road topology and agent detections, through cross-attention mechanisms. This forms an efficient data-streaming architecture, that contrasts with the expensive, fixed-sequence input common in existing models. The architecture also offers the distinct advantage of generating occupancy predictions through localized querying based on a point-of-interest, as opposed to generating fixed-size occupancy images that render potentially irrelevant regions.
description: 8 pages, 6 figures, Accepted for publication in IEEE RA-L 2024
Sand mining in the Mekong Delta revisited - current scales of local sediment deficits
Creators: name: Jordan, Christian
name: Tiede, Jan
name: Lojek, Oliver
name: Visscher, Jan
name: Apel, Heiko
name: Nguyen, Hong Quan
name: Quang, Chau Nguyen Xuan
name: Schlurmann, Torsten
Publisher: name: London : Nature Publishing Group
Year: 2019
Subjects: subject: article
subject: mining
subject: sediment
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: The delta of the Mekong River in Vietnam has been heavily impacted by anthropogenic stresses in recent years, such as upstream dam construction and sand mining within the main and distributary channels, leading to riverbank and coastal erosion. Intensive bathymetric surveys, conducted within the Tien River branch during the dry and wet season 2018, reveal a high magnitude of sand mining activities. For the year 2018, an analysis of bathymetric maps and the local refilling processes leads to an estimated sand extraction volume of 4.64 ± 0.31 Mm3/yr in the study area, which covered around 20 km. Reported statistics of sand mining for all of the Mekong’s channels within the delta, which have a cumulative length of several hundred kilometres, are 17.77 Mm3/yr for this period. Results from this study highlight that these statistics are likely too conservative. It is also shown that natural sediment supplies from upper reaches of the Mekong are insufficient to compensate for the loss of extracted bed aggregates, illustrating the non-sustainable nature of the local sand mining practices.
Time-dependent complete-active-space self-consistent field method for multielectron dynamics in intense laser fields
Creators: name: Sato, Takeshi
name: Ishikawa, Kenichi L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The time-dependent complete-active-space self-consistent-field (TD-CASSCF) method for the description of multielectron dynamics in intense laser fields is presented, and a comprehensive description of the method is given. It introduces the concept of frozen-core (to model tightly bound electrons with no response to the field), dynamical-core (to model electrons tightly bound but responding to the field), and active (fully correlated to describe ionizing electrons) orbital subspaces, allowing compact yet accurate representation of ionization dynamics in many-electron systems. The classification into the subspaces can be done flexibly, according to simulated physical situations and desired accuracy, and the multiconfiguration time-dependent Hartree-Fock (MCTDHF) approach is included as a special case. To assess its performance, we apply the TD-CASSCF method to the ionization dynamics of one-dimensional lithium hydride (LiH) and LiH dimer models, and confirm that the present method closely reproduces rigorous MCTDHF results if active orbital space is chosen large enough to include appreciably ionizing electrons. The TD-CASSCF method will open a way to the first-principle theoretical study of intense-field induced ultrafast phenomena in realistic atoms and molecules.
description: 16 pages, 9 figures
Hans Riedl. Mautern in römischer Zeit
Creators: name: Petrikovits, Harald Von
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2017

description: Rezension zu: Hans Riedl, Mautern in römischer Zeit. Jahresbericht des Bundesgymnasiums in Krems a. d. Donau am Schlusse des Schuljahres 1933/34. Krems 1934. 18 S., 1 Plan.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 19, Nr. 2 (1935)
3-3-1-1 model for dark matter
Creators: name: Dong, P. V.
name: Hung, H. T.
name: Tham, T. D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the SU(3)_C X SU(3)_L X U(1)_X (3-3-1) model of strong and electroweak interactions can naturally accommodate an extra U(1)_N symmetry behaving as a gauge symmetry. Resulting theory based on SU(3)_C X SU(3)_L X U(1)_X X U(1)_N (3-3-1-1) gauge symmetry realizes B-L=-(2/\sqrt{3})T_8+N as a charge of SU(3)_L X U(1)_N. Consequently, a residual symmetry, W-parity, resulting from broken B-L in similarity to R-parity in supersymmetry is always conserved and may be unbroken. There is a specific fermion content recently studied in which all new particles that have wrong lepton-numbers are odd under W-parity, while the standard model particles are even. Therefore, the lightest wrong-lepton particle (LWP) responsible for dark matter is naturally stabilized. We explicitly show that the non-Hermitian neutral gauge boson (X^0) as LWP cannot be a dark matter. However, the LWP as a new neutral fermion (N_R) can be dark matter if its mass is in range 1.9 TeV \leq m_{N_R} \leq 2.5 TeV, provided that the new neutral gauge boson (Z') mass satisfies 2.2 TeV \leq m_Z' \leq 2.5 TeV. Moreover, the scalar dark matter candidate (H'\simeq η_3) which has traditionally been studied is only stabilized by W-parity. All the unwanted interactions and vacuums as often encountered in the 3-3-1 model are naturally suppressed. And, the standing issues on tree-level flavor changing neutral currents and CPT violation also disappear.
description: 32 pages, 2 figures, revised version, to appear in Physical Review D
Die Wohnsitze der Cattenaten
Creators: name: Egger, Rudolf
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2017

description: [nicht erschienen / not available]
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 19, Nr. 3 (1935)
Searching for stochastic gravitational waves using data from the two colocated LIGO Hanford detectors
Creators: name: Aasi, J.
name: Allen, Bruce
name: Ast, Stefan
name: Aufmuth, Peter
name: Danzmann, Karsten
name: Kaufer, S.
name: Lück, Harald
name: Meier, Tobias
name: Schnabel, R.
name: Vahlbruch, H.
name: Willke, Benno
name: Et Al.
name: LIGO Scientific Collaboration
name: Collaboration, Virgo
Publisher: name: College Park, MD : American Physical Society
Year: 2015
Subjects: subject: Stochastic Gravitational-Wave Background
subject: Gravitational waves
subject: Gravitationswelle
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Searches for a stochastic gravitational-wave background (SGWB) using terrestrial detectors typically involve cross-correlating data from pairs of detectors. The sensitivity of such cross-correlation analyses depends, among other things, on the separation between the two detectors: the smaller the separation, the better the sensitivity. Hence, a colocated detector pair is more sensitive to a gravitational-wave background than a noncolocated detector pair. However, colocated detectors are also expected to suffer from correlated noise from instrumental and environmental effects that could contaminate the measurement of the background. Hence, methods to identify and mitigate the effects of correlated noise are necessary to achieve the potential increase in sensitivity of colocated detectors. Here we report on the first SGWB analysis using the two LIGO Hanford detectors and address the complications arising from correlated environmental noise. We apply correlated noise identification and mitigation techniques to data taken by the two LIGO Hanford detectors, H1 and H2, during LIGO’s fifth science run. At low frequencies, 40–460 Hz, we are unable to sufficiently mitigate the correlated noise to a level where we may confidently measure or bound the stochastic gravitational-wave signal. However, at high frequencies, 460–1000 Hz, these techniques are sufficient to set a 95% confidence level upper limit on the gravitational-wave energy density of Ω(f)<7.7×10−4(f/900 Hz)3, which improves on the previous upper limit by a factor of ∼180. In doing so, we demonstrate techniques that will be useful for future searches using advanced detectors, where correlated noise (e.g., from global magnetic fields) may affect even widely separated detectors. © 2015 The American Physical Society
Mutellina Vill.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. Mutellina Vill. (März 1779)1 (Absinthium laxum Lam. [März1779]S Art. laxa Fritsch [1893]) Cat. 193und 427. Abwärtsbis1175m:Felsenin der Gondoschlucht(Simplonsüdseite)beiderAltenKaserne(Beche- rer 1942); andere tiefe Stellen sind: Gabi (Simplonsüdseite), Alluvionen desLagginbaches, etwa1240 m (Becherer); Vispuferunter Täsch,Felsen, 1440m (Huber); Alluvionen der Vispbei Zermatt, 1620 m (Thellung). l: Dent de Valerette (Marietan); Dent de Valere-Cime de l'Est (idem); Le Fourneau-Le Vannet (Briquet); Col deTanneverge (idem); ChevalBlanc (idem). - 2:Vertsanob Ardon (Beauverd). - 3: Penninische Kette verbreitet. - 4: Aletschgebiet (Marietan); Rappental (B. C. W.). Var.pseudoglacialis H. Jaccard- 2: Grand Chavalard(Garns). Var.pedimculata (Giacomini et Pignatti) - 3: Saastal(Huet du Pavillon). Formaglacialiformis (Thell.) - 3: Mauvoisinund Chanrion im Val de Bagnes (Zahn); Gornergrat bei Zermatt (Thellung).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
The magnetic moments of the proton and the antiproton
Creators: name: Ulmer, S.
name: Mooser, A.
name: Blaum, K.
name: Braeuninger, S.
name: Franke, K.
name: Kracke, H.
name: Leiteritz, C.
name: Matsuda, Y.
name: Nagahama, H.
name: Ospelkaus, C.
name: Rodegheri, C.C.
name: Quint, W.
name: Schneider, G.
name: Smorra, C.
name: Van Gorp, S.
name: Walz, J.
name: Yamazaki, Y.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2014
Subjects: subject: Magnetic moments
subject: Quantum theory
subject: Scheduling
subject: Magnetism
subject: Antiproton decelerator
subject: CPT invariance
subject: Direct detection
subject: High-precision measurement
subject: Magnetic field inhomogeneities
subject: Quantum state
subject: Research goals
subject: Three orders of magnitude
subject: Protons
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Recent exciting progress in the preparation and manipulation of the motional quantum states of a single trapped proton enabled the first direct detection of the particle's spin state. Based on this success the proton magnetic moment μp was measured with ppm precision in a Penning trap with a superimposed magnetic field inhomogeneity. An improvement by an additional factor of 1000 in precision is possible by application of the so-called double Penning trap technique. In a recent paper we reported the first demonstration of this method with a single trapped proton, which is a major step towards the first direct high-precision measurement of μp. The techniques required for the proton can be directly applied to measure the antiproton magnetic moment μp. An improvement in precision of μp by more than three orders of magnitude becomes possible, which will provide one of the most sensitive tests of CPT invariance. To achieve this research goal we are currently setting up the Baryon Antibaryon Symmetry Experiment (BASE) at the antiproton decelerator (AD) of CERN.
Two-loop results on the renormalization of vacuum expectation values and infrared divergences in the FDH scheme
Creators: name: Gnendiger, Christoph
name: Signer, Adrian
name: Sperling, Marcus
name: Stöckinger, Dominik
name: Voigt, Alexander
Publisher: name: Trieste : Proceedings of Science (PoS)
Year: 2014
Subjects: subject: Quantum theory
subject: Beta function
subject: Expectation values
subject: Form factors
subject: Infrared divergences
subject: Recent progress
subject: Regularization schemes
subject: Renormalization
subject: Transition rule
subject: Computation theory
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Recent progress in the understanding of vacuum expectation values and of infrared divergences in different regularization schemes is reviewed. Vacuum expectation values are gauge and renormalization-scheme dependent quantities. Using a method based on Slavnov-Taylor identities, the renormalization properties could be better understood. The practical outcome is the computation of the ? functions for vacuum expectation values in general gauge theories. The infrared structure of gauge theory amplitudes depends on the regularization scheme. The well-known prediction of the infrared structure in CDR can be generalized to the FDH and DRED schemes and is in agreement with explicit computations of the quark and gluon form factors. We discuss particularly the correct renormalization procedure and the distinction between MS and DR renormalization. An important practical outcome are transition rules between CDR and FDH amplitudes.
An optimized chiral nucleon-nucleon interaction at next-to-next-to-leading order
Creators: name: Ekström, A.
name: Baardsen, G.
name: Forssén, C.
name: Hagen, G.
name: Hjorth-Jensen, M.
name: Jansen, G. R.
name: Machleidt, R.
name: Nazarewicz, W.
name: Papenbrock, T.
name: Sarich, J.
name: Wild, S. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We optimize the nucleon-nucleon interaction from chiral effective field theory at next-to-next- to-leading order. The resulting new chiral force NNLOopt yields χ^2 \approx 1 per degree of freedom for laboratory energies below approximately 125 MeV. In the A = 3, 4 nucleon systems, the contributions of three-nucleon forces are smaller than for previous parametrizations of chiral interactions. We use NNLOopt to study properties of key nuclei and neutron matter, and demonstrate that many aspects of nuclear structure can be understood in terms of this nucleon-nucleon interaction, without explicitly invoking three-nucleon forces.
description: 6 pages, 4 figures
Perturbed Initial Orbit Determination
Creators: name: Fossà, Alberto
name: Losacco, Matteo
name: Armellin, Roberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: An algorithm for robust initial orbit determination (IOD) under perturbed orbital dynamics is presented. By leveraging map inversion techniques defined in the algebra of Taylor polynomials, this tool returns a highly accurate solution to the IOD problem and estimates a range centered on the aforementioned solution in which the true orbit should lie. To meet the specified accuracy requirements, automatic domain splitting is used to wrap the IOD routines and ensure that the local truncation error, introduced by a polynomial representation of the state estimate, remains below a predefined threshold. The algorithm is presented for three types of ground-based sensors, namely range radars, Doppler-only radars, and optical telescopes, by considering their different constraints in terms of available measurements and sensor noise. Finally, the improvement in performance with respect to a Keplerian-based IOD solution is demonstrated using large-scale numerical simulations over a subset of tracked objects in low Earth orbit.
description: accepted for publication on Astrodynamics
Charge-Carrier Screening in Single-Layer Graphene
Creators: name: Siegel, David A.
name: Regan, William
name: Fedorov, Alexei V.
name: Zettl, A.
name: Lanzara, Alessandra
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effect of charge-carrier screening on the transport properties of a neutral graphene sheet is studied by directly probing its electronic structure. We find that the Fermi velocity, Dirac point velocity, and overall distortion of the Dirac cone are renormalized due to the screening of the electron-electron interaction in an unusual way. We also observe an increase of the electron mean free path due to the screening of charged impurities. These observations help us to understand the basis for the transport properties of graphene, as well as the fundamental physics of these interesting electron-electron interactions at the Dirac point crossing.
description: Please see the published PRL at http://link.aps.org/doi/10.1103/PhysRevLett.110.146802
Feasibility of utilizing Cherenkov Telescope Array gamma-ray telescopes as free-space optical communication ground stations
Creators: name: Carrasco-Casado, Alberto
name: Vilera, Mariafernanda
name: Vergaz, Ricardo
name: Cabrero, Juan Francisco
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The signals that will be received on Earth from deep-space probes in future implementations of free-space optical communication will be extremely weak, and new ground stations will have to be developed in order to support these links. This paper addresses the feasibility of using the technology developed in the gamma-ray telescopes that will make up the Cherenkov Telescope Array (CTA) observatory in the implementation of a new kind of ground station. Among the main advantages that these telescopes provide are the much larger apertures needed to overcome the power limitation that ground-based gamma-ray astronomy and optical communication both have. Also, the large number of big telescopes that will be built for CTA will make it possible to reduce costs by economy-scale production, enabling optical communications in the large telescopes that will be needed for future deep-space links.
Evolution of Thermally Pulsing Asymptotic Giant Branch Stars II. Dust production at varying metallicity
Creators: name: Nanni, Ambra
name: Bressan, Alessandro
name: Marigo, Paola
name: Girardi, Léo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the dust ejecta of the new stellar models for the Thermally Pulsing Asymptotic Giant Branch (TP-AGB) phase computed with the COLIBRI code. We use a formalism of dust growth coupled with a stationary wind for both M and C-stars. In the original version of this formalism, the most efficient destruction process of silicate dust in M-giants is chemisputtering by H2 molecules. For these stars we find that dust grains can only form at relatively large radial distances (r~5 R*), where they cannot be efficiently accelerated, in agreement with other investigations. In the light of recent laboratory results, we also consider the alternative case that the condensation temperature of silicates is determined only by the competition between growth and free evaporation processes (i.e. no chemisputtering). With this latter approach we obtain dust condensation temperatures that are significantly higher (up to Tcond~1400 K) than those found when chemisputtering is included (Tcond~900 K), and in better agreement with condensation experiments. As a consequence, silicate grains can remain stable in inner regions of the circumstellar envelopes (r~2 R*), where they can rapidly grow and can be efficiently accelerated. With this modification, our models nicely reproduce the observed trend between terminal velocities and mass loss rates of Galactic M-giants. For C-stars the formalism is based on the homogeneous growth scheme where the key role is played by the carbon over oxygen excess. The models reproduce fairly well the terminal velocities of Galactic stars and there is no need to invoke changes in the standard assumptions. At decreasing metallicity the carbon excess becomes more pronounced and the efficiency of dust formation increases. This trend could be in tension with recent observational evidence in favour of a decreasing efficiency, at decreasing metallicity.
Dominant Superconducting Fluctuations in the One-Dimensional Extended Holstein-Extended Hubbard model
Creators: name: Tam, Ka-Ming
name: Tsai, Shan-Wen
name: Campbell, D. K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The search for realistic one-dimensional (1D) models that exhibit dominant superconducting (SC) fluctuations effects has a long history. In these 1D systems, the effects of commensurate band fillings--strongest at half-filling--and electronic repulsions typically lead to a finite charge gap and the favoring of insulating density wave ordering over superconductivity. Accordingly, recent proposals suggesting a gapless metallic state in the Holstein-Hubbard (HH) model, possibly superconducting, have generated considerable interest and controversy, with the most recent work demonstrating that the putative dominant superconducting state likely does not exist. In this paper we study a model with non-local electron-phonon interactions, in addition to electron-electron interactions, this model unambiguously possesses dominant superconducting fluctuations at half filling in a large region of parameter space. Using both the numerical multi-scale functional renormalization group for the full model and an analytic conventional renormalization group for a bosonized version of the model, we demonstrate the existence of dominant superconducting (SC) fluctuations. These dominant SC fluctuations arise because the spin-charge coupling at high energy is weakened by the non-local electron-phonon interaction and the charge gap is destroyed by the resultant suppression of the Umklapp process. The existence of the dominant SC pairing instability in this half-filled 1D system suggests that non-local boson-mediated interactions may be important in the superconductivity observed in the organic superconductors.
description: 8 pages, 4 figures
Rice-Infecting Pseudomonas Genomes Are Highly Accessorized and Harbor Multiple Putative Virulence Mechanisms to Cause Sheath Brown Rot
Creators: name: Quibod, Ian Lorenzo
name: Grande, Genelou
name: Oreiro, Eula Gems
name: Borja, Frances Nikki
name: Dossa, Gerbert Sylvestre
name: Mauleon, Ramil
name: Cruz, Casiana Vera
name: Oliva, Ricardo
Publisher: name: San Francisco : Public Library Science
Year: 2015
Subjects: subject: III secretion system
subject: microbial pan-genome
subject: phytopathogenic bacteria
subject: grain discoloration
subject: species definition
subject: fluorescens f113
subject: fuscovaginae
subject: pathogen
subject: sequence
subject: host
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Sheath rot complex and seed discoloration in rice involve a number of pathogenic bacteria that cannot be associated with distinctive symptoms. These pathogens can easily travel on asymptomatic seeds and therefore represent a threat to rice cropping systems. Among the rice-infecting Pseudomonas, P. fuscovaginae has been associated with sheath brown rot disease in several rice growing areas around the world. The appearance of a similar Pseudomonas population, which here we named P. fuscovaginae-like, represents a perfect opportunity to understand common genomic features that can explain the infection mechanism in rice. We showed that the novel population is indeed closely related to P. fuscovaginae. A comparative genomics approach on eight rice-infecting Pseudomonas revealed heterogeneous genomes and a high number of strain-specific genes. The genomes of P. fuscovaginae-like harbor four secretion systems (Type I, II, III, and VI) and other important pathogenicity machinery that could probably facilitate rice colonization. We identified 123 core secreted proteins, most of which have strong signatures of positive selection suggesting functional adaptation. Transcript accumulation of putative pathogenicity-related genes during rice colonization revealed a concerted virulence mechanism. The study suggests that rice-infecting Pseudomonas causing sheath brown rot are intrinsically diverse and maintain a variable set of metabolic capabilities as a potential strategy to occupy a range of environments.
Modeling Fibril Fragmentation in Real-Time
Creators: name: Tan, Pengzhen
name: Hong, Liu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: During the application of mass-action equation models to the study of amyloid fiber formation, time-consuming numerical calculations constitute a major bottleneck when no analytical solution is available. To conquer this difficulty, here an alternative efficient method is introduced for the fragmentation-only model. It includes two basic steps: (1) simulate close-formed time-evolution equations for the number concentration P(t) derived from the moment-closure method; (2) reconstruct the detailed fiber length distribution based on the knowledge of moments obtained in the first step. Compared to direct solution, current method speeds up the calculation by at least ten thousand times. The accuracy is also quite satastifactory if suitable forms of approximate distribution fucntion is taken. Further application to PI264-b-PFS48 micelles study performed by Guerin et al. confirms our method is very promising for the real-time analysis of the experimental data on fiber fragmentation.
description: 12 pages, 7 figures
Superconductivity in the noncentrosymmetric half-Heusler compound LuPtBi : A possible topological superconductor
Creators: name: Tafti, F. F.
name: Fujii, Takenori
name: Juneau-Fecteau, A.
name: de Cotret, S. Rene
name: Doiron-Leyraud, N.
name: Asamitsu, Atsushi
name: Taillefer, Louis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report superconductivity in the ternary half-Heusler compound LuPtBi, with Tc = 1.0 K and Hc2 = 1.6 T. The crystal structure of LuPtBi lacks inversion symmetry, hence the material is a noncentrosymmetric superconductor. Magnetotransport data show semimetallic behavior in the normal state, which is evidence for the importance of spin-orbit interaction. Theoretical calculations indicate that the strong spin-orbit interaction in LuPtBi should cause strong band inversion, making this material a promising candidate for 3D topological superconductivity.
description: 5 pages, 4 figures, Table I revised, discussion of the Pauli limit revised
title: Endangered Species Act Section 7 Formal Consultation and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Consultation for the City of Kenmore West Sammamish Bridge Replacement Project, King County, Washington, Federal Aid #: BRM-2411 (003)
titleType: Other
Creators: name: United States. National Marine Fisheries Service
Publisher: name: United States. National Marine Fisheries Service
Year: 2019

description: ESA Section 7 Consultation ; WCRO-2018-01046
Superconformal SU(1, 1|n) mechanics
Creators: name: Galajinsky, Anton
name: Lechtenfeld, Olaf
Publisher: name: Heidelberg : Springer Verlag
Year: 2016
Subjects: subject: Conformal and W Symmetry
subject: Extended Supersymmetry
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Recent years have seen an upsurge of interest in dynamical realizations of the superconformal group SU(1, 1|2) in mechanics. Remarking that SU(1, 1|2) is a particular member of a chain of supergroups SU(1, 1|n) parametrized by an integer n, here we begin a systematic study of SU(1, 1|n) multi-particle mechanics. A representation of the superconformal algebra su(1, 1|n) is constructed on the phase space spanned by m copies of the (1, 2n, 2n−1) supermultiplet. We show that the dynamics is governed by two prepotentials V and F, and the Witten-Dijkgraaf-Verlinde-Verlinde equation for F shows up as a consequence of a more general fourth-order equation. All solutions to the latter in terms of root systems reveal decoupled models only. An extension of the dynamical content of the (1, 2n, 2n−1) supermultiplet by angular variables in a way similar to the SU(1, 1|2) case is problematic.
Short-Term Variability of X-rays from Accreting Neutron Star Vela X-1: I. Suzaku Observations
Creators: name: Odaka, Hirokazu
name: Khangulyan, Dmitry
name: Tanaka, Yasuyuki T.
name: Watanabe, Shin
name: Takahashi, Tadayuki
name: Makishima, Kazuo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have analyzed the time variability of the wide-band X-ray spectrum of Vela X-1, the brightest wind-fed accreting neutron star, on a short timescale of 2 ks by using {\it Suzaku} observations with an exposure of 100 ks. During the observation, the object showed strong variability including several flares and so-called "low states", in which the X-ray luminosity decreases by an order of magnitude. Although the spectral hardness increases with the X-ray luminosity, the majority of the recorded flares do not show any significant changes of circumstellar absorption. However, a sign of heavy absorption was registered immediately before one short flare that showed a significant spectral hardening. In the low states, the flux level is modulated with the pulsar spin period, indicating that even at this state the accretion flow reaches the close proximity of the neutron star. Phenomenologically, the broad-band X-ray spectra, which are integrated over the entire spin phase, are well represented by the "NPEX" function (a combination of negative and positive power laws with an exponential cutoff by a common folding energy) with a cyclotron resonance scattering feature at 50 keV. Fitting of the data allowed us to infer a correlation between the photon index and X-ray luminosity. Finally, the circumstellar absorption shows a gradual increase in the orbital phase interval 0.25--0.3, which can be interpreted as an impact of a bow shock imposed by the motion of the compact object in the supersonic stellar wind.
description: 17 pages, 19 figures, published in ApJ