cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Improved angular momentum evolution model for solar-like stars
Creators: name: Gallet, Florian
name: Bouvier, Jérôme
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new models for the rotational evolution of solar-like stars between 1 Myr and 10 Gyr with the aim to reproduce the distributions of rotational periods observed for star forming regions and young open clusters within this age range. The models include a new wind braking law based on recent numerical simulations of magnetized stellar winds and specific dynamo and mass-loss prescriptions are adopted to tie angular momentum loss to angular velocity. The model additionally assume constant angular velocity during the disk accretion phase and allow for decoupling between the radiative core and the convective envelope as soon as the former develops. We have developed rotational evolution models for slow, median and fast rotators with initial periods of 10, 7, and 1.4d, respectively. The models reproduce reasonably well the rotational behaviour of solar-type stars between 1 Myr and 4.5 Gyr, including PMS to ZAMS spin up, prompt ZAMS spin down, and the early-MS convergence of surface rotation rates. We find the model parameters accounting for the slow and median rotators are very similar to each other, with a disk lifetime of 5 Myr and a core-envelope coupling timescale of 28-30 Myr. In contrast, fast rotators have both shorter disk lifetime (2.5 Myr) and core-envelope coupling timescale (12 Myr). We emphasize that these results are highly dependent on the adopted braking law. We also report a tentative correlation between initial rotational period and disk lifetime, which suggests that protostellar spin-down by massive disks in the embedded phase is at the origin of the initial dispersion of rotation rates in young stars. We conclude that this class of semi-empirical models successfully grasp the main trends of the rotational behaviour of solar-type stars as they evolve and make specific predictions that may serve as a guide for further development.
description: 16 pages, 5 figures, 4 table, accepted for publication by A&A. New version that include the linguistic correction
Genomes of the Venus Flytrap and Close Relatives Unveil the Roots of Plant Carnivory
Creators: name: Palfalvi, Gergo
name: Hackl, Thomas
name: Terhoeven, Niklas
name: Shibata, Tomoko F.
name: Nishiyama, Tomoaki
name: Ankenbrand, Markus
name: Becker, Dirk
name: Förster, Frank
name: Freund, Matthias
name: Iosip, Anda
name: Kreuzer, Ines
name: Saul, Franziska
name: Kamida, Chiharu
name: Fukushima, Kenji
name: Shigenobu, Shuji
name: Tamada, Yosuke
name: Adamec, Lubomir
name: Hoshi, Yoshikazu
name: Ueda, Kunihiko
name: Winkelmann, Traud
name: Fuchs, Jörg
name: Schubert, Ingo
name: Schwacke, Rainer
name: Al-Rasheid, Khaled
name: Schultz, Jörg
name: Hasebe, Mitsuyasu
name: Hedrich, Rainer
Publisher: name: Cambridge, MA : Cell Press
Year: 2020
Subjects: subject: Droseraceae
subject: gene loss
subject: jasmonate signaling
subject: neofunctionalization
subject: tissue-specific genes
subject: transposon classification
subject: whole-genome duplications
subject: WRKY transcription factors
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Most plants grow and develop by taking up nutrients from the soil while continuously under threat from foraging animals. Carnivorous plants have turned the tables by capturing and consuming nutrient-rich animal prey, enabling them to thrive in nutrient-poor soil. To better understand the evolution of botanical carnivory, we compared the draft genome of the Venus flytrap (Dionaea muscipula) with that of its aquatic sister, the waterwheel plant Aldrovanda vesiculosa, and the sundew Drosera spatulata. We identified an early whole-genome duplication in the family as source for carnivory-associated genes. Recruitment of genes to the trap from the root especially was a major mechanism in the evolution of carnivory, supported by family-specific duplications. Still, these genomes belong to the gene poorest land plants sequenced thus far, suggesting reduction of selective pressure on different processes, including non-carnivorous nutrient acquisition. Our results show how non-carnivorous plants evolved into the most skillful green hunters on the planet. Palfalvi et al. reconstruct the evolution of plant carnivory in the Droseraceae by comparative genome analysis. A common whole-genome duplication is the source for recruitment of genes to carnivory-related functions. Different hunting styles evolve by expansions of defined gene families. The analyzed genomes have massively lost genes. © 2020 The Authors
Finding all flux vacua in an explicit example
Creators: name: Martinez-Pedrera, Danny
name: Mehta, Dhagash
name: Rummel, Markus
name: Westphal, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explicitly construct all supersymmetric flux vacua of a particular Calabi-Yau compactification of type IIB string theory for a small number of flux carrying cycles and a given D3-brane tadpole. The analysis is performed in the large complex structure region by using the polynomial homotopy continuation method, which allows to find all stationary points of the polynomial equations that characterize the supersymmetric vacuum solutions. The number of vacua as a function of the D3 tadpole is in agreement with statistical studies in the literature. We calculate the available tuning of the cosmological constant from fluxes and extrapolate to scenarios with a larger number of flux carrying cycles. We also verify the range of scales for the moduli and gravitino masses recently found for a single explicit flux choice giving a Kähler uplifted de Sitter vacuum in the same construction.
description: LaTeX, 1-32 pages, 8 figures
Using high‐resolution XRF analyses as a sequence stratigraphic tool in a mudstone‐dominated succession (Early Cretaceous, Lower Saxony Basin, Northern Germany)
Creators: name: Thöle, Hauke
name: Bornemann, André
name: Heimhofer, Ulrich
name: Luppold, Friedrich Wilhelm
name: Blumenberg, Mation
name: Dohrmann, Reiner
name: Erbacher, Jochen
Publisher: name: Chichester : Wiley
Year: 2020
Subjects: subject: Lower Cretaceous
subject: Lower Saxony Basin
subject: mudstones
subject: sequence stratigraphy
subject: Weissert Event
subject: X‐ray
subject: fluorescence core scanning
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Delineation of stratigraphic sequences and their component systems tracts in mudstone‐dominated successions is challenging due to the relatively homogenous, fine‐grained nature of the strata. High‐resolution elemental intensity data from X‐ray fluorescence core scanning is used in order to develop a sequence stratigraphic framework for the Lower Cretaceous monotonous mudstone succession in the eastern Lower Saxony Basin. The study is based on four drill cores covering the Berriasian to Aptian interval. In addition, carbon isotope (δ13Corg), grain size and CaCO3 analyses were carried out on discrete samples. The studied cores represent both proximal and distal basinal environments of the eastern Lower Saxony Basin and can be reliably correlated by utilizing variations in selected X‐ray flourescence elemental ratios, K/Ti data have proven to be particularly suitable in this regard. The core correlation shows that chemostratigraphic variability within the studied succession is laterally reproducible in the eastern Lower Saxony Basin, and can be used to establish a sequence stratigraphic framework. Further, Si/Al and Ca/Ti ratios have been applied to characterize the cores in terms of variation in grain size and CaCO3 content, respectively. Vertical grading trends inferred from Si/Al changes were used to identify transgressive and regressive systems tracts within the studied succession. An important regression in the uppermost lower Valanginian coincides with the onset of the Valanginian Weissert Event, as indicated by the well‐known positive δ13C shift, and, thus, supports the idea that the initial interval of this event corresponds to enhanced supply of terrigenous material. The results of this study are also in agreement with previously recognized transgressive–regressive trends in the Lower Saxony Basin and adjacent areas. This clearly shows that systematic geochemical variations recorded in mudstone‐dominated basinal settings are suitable to establish sequence stratigraphic frameworks.
Meta-GGA exchange-correlation functional with a balanced treatment of nonlocality
Creators: name: Constantin, L. A.
name: Fabiano, E.
name: Della Sala, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We construct a meta-generalized-gradient approximation which properly balances the nonlocality contributions to the exchange and correlation at the semilocal level. This non-empirical functional shows good accuracy for a broad palette of properties (thermochemistry, structural properties) and systems (molecules, metal clusters, surfaces and bulk solids). The accuracy for several well known problems in electronic structure calculations, such as the bending potential of the silver trimer and the dimensional crossover of anionic gold clusters, is also demonstrated. The inclusion of empirical dispersion corrections is finally discussed and analyzed.
description: 10 pages, 4 figures
Synthetic Applications of Oxidative Aromatic Coupling : From Biphenols to Nanographenes
Creators: name: Grzybowski, Marek
name: Sadowski, Bartłomiej
name: Butenschön, Holger
name: Gryko, Daniel T.
Publisher: name: Weinheim : Wiley-VCH Verlag
Year: 2019
Subjects: subject: biaryls
subject: Lewis acids
subject: nanographenes
subject: oxidative coupling
subject: Scholl reaction
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Oxidative aromatic coupling occupies a fundamental place in the modern chemistry of aromatic compounds. It is a method of choice for the assembly of large and bewildering architectures. Considerable effort was also devoted to applications of the Scholl reaction for the synthesis of chiral biphenols and natural products. The ability to form biaryl linkages without any prefunctionalization provides an efficient pathway to many complex structures. Although the chemistry of this process is only now becoming fully understood, this reaction continues to both fascinate and challenge researchers. This is especially true for heterocoupling, that is, oxidative aromatic coupling with the chemoselective formation of a C−C bond between two different arenes. Analysis of the progress achieved in this field since 2013 reveals that many groups have contributed by pushing the boundary of structural possibilities, expanding into surface‐assisted (cyclo)dehydrogenation, and developing new reagents.
CH3OCH3 in Orion-KL: a striking similarity with HCOOCH3
Creators: name: Brouillet, N.
name: Despois, D.
name: Baudry, A.
name: Peng, T. -C.
name: Favre, C.
name: Wootten, A.
name: Remijan, A. J.
name: Wilson, T. L.
name: Combes, F.
name: Wlodarczak, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We used several data sets from the Plateau de Bure Interferometer to map the dimethyl ether emission in Orion-KL with different arcsec spatial resolutions and different energy levels to compare with our previous methyl formate maps. Our data show remarkable similarity between the dimethyl ether (CH3OCH3) and the methyl formate (HCOOCH3) distributions even on a small scale (1.8"x0.8" or about 500 AU). This long suspected similarity, seen from both observational and theoretical arguments, is demonstrated with unprecedented confidence, with a correlation coefficient of maps of 0.8. A common precursor is the simplest explanation of our correlation. Comparisons with previous laboratory work and chemical models suggest the major role of grain surface chemistry and a recent release, probably with little processing, of mantle molecules by shocks. In this case the CH3O radical produced from methanol ice would be the common precursor (whereas ethanol, C2H5OH, is produced from the radical CH2OH). The alternative gas phase scheme, where protonated methanol CH3OH2+ is the common precursor to produce methyl formate and dimethyl ether through reactions with HCOOH and CH3OH, is also compatible with our data. Our observations cannot yet definitely allow a choice between the different chemical processes, but the tight correlation between the distributions of HCOOCH3 and CH3OCH3 strongly contrasts with the different behavior we observe for the distributions of ethanol and formic acid. This provides a very significant constraint on models.
description: 10 pages, 8 figures, to be published in Astronomy & Astrophysics
Unraveling the genetic complexity underlying sorghum response to water availability
Creators: name: Phuong, Nguyen
name: Afolayan, Gloria
name: Stüzel, Hartmut
name: Uptmoor, Ralf
name: El-Soda, Mohamed
Publisher: name: San Francisco, California, US : PLOS
Year: 2019
Subjects: subject: high yielding parent (HYP)
subject: drought tolerant parent (DTP)
subject: recombinant inbred lines (RILs)
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Understanding the adaptation mechanisms of sorghum to drought and the underlying genetic architecture may help to improve its production in a wide range of environments. By crossing a high yielding parent (HYP) and a drought tolerant parent (DTP), we obtained 140 recombinant inbred lines (RILs), which were genotyped with 120 DArT and SSR markers covering 14 linkage groups (LGs). A subset of 100 RILs was evaluated three times in control and drought treatments to genetically dissect their response to water availability. Plants with early heading date (HD) in the drought treatment maintained yield (YLD) level by reducing seed number SN and increasing hundred seed weight (HSW). In contrast, early HD in the control treatment increased SN, HSW and YLD. In total, 133 significant QTL associated with the measured traits were detected in ten hotspot regions. Antagonistic, pleiotropic effects of a QTL cluster mapped on LG-6 may explain the observed trade-offs between SN and HSW: Alleles from DTP reduced SN and the alleles from HYP increased HSW under drought stress, but not in the control treatment. Our results illustrate the importance of considering genetic and environmental factors in QTL mapping to better understand plant responses to drought and to improve breeding programs.
Gravitationally lensed extended sources: the case of QSO RXJ0911
Creators: name: Hoai, D. T.
name: Nhung, P. T.
name: Anh, P. T.
name: Boone, F.
name: Darriulat, P.
name: Diep, P. N.
name: Dong, P. N.
name: Hiep, N. V.
name: Thao, N. T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: After a brief reminder of the mechanism of gravitational lensing of extended sources, the particular case of the host galaxy of QSO RXJ0911, a high redshift (z~2.8) quadruply imaged quasar, is explored. The non linearity of the problem, together with the proximity of the source to a cusp of the lens inner caustic, have important consequences on the dependence of the image appearance on the size and shape of the source. Their expected main features and their interpretation in terms of source extension and shape are investigated in a spirit of simplicity and in preparation for the analysis of high sensitivity and spatial resolution images that will soon be within reach with the completion of the Atacama Large Millimeter/submillimeter Array (ALMA). In particular, the information on source size carried by relative image brightness is discussed. Extension of the results to other types of quadruply imaged quasars is briefly considered.
description: 12 pages, 10 figures, journal article
Degenerate random perturbations of Anosov diffeomorphisms
Creators: name: Yarmola, Tatiana
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This paper deals with random perturbations of diffeomorphisms on n-dimensional Riemannian manifolds with distributions supported on k-dimensional disks, where k
Model Vapor-Deposited Glasses: Growth Front and Composition Effects
Creators: name: Lyubimov, Ivan
name: Ediger, Mark D.
name: de Pablo, Juan J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A growing body of experimental work indicates that physical vapor deposition provides an effective route for preparation of stable glasses, whose properties correspond in some cases to those expected for glasses that have been aged for thousands of years. In this work, model binary glasses are prepared in a process inspired by physical vapor deposition, in which particles are sequentially added to the free surface of a growing film. The resulting glasses are shown to be more stable than those prepared by gradual cooling from the liquid phase. However, it is also shown that the composition of the resulting glass, which is difficult to control in physical vapor deposition simulations of thin films, plays a significant role on the physical characteristics of the material. That composition dependence leads to a re- evaluation of previous results from simulations of thinner films than those considered here, where the equivalent age of the corresponding glasses was overestimated. The simulations presented in this work, which correspond to films that are approximately 38 molecular diameters thick, also enable analysis of the devitrification mechanism of vapor-deposited glasses. Consistent with experiments, it is found that this mechanism consists of a mobility front that propagates from the free interface into the interior of the films. Eliminating surface mobility eliminates this route of transformation into the supercooled liquid.
description: 11 pages, 6 figures. Submitted to J.Chem.Phys
title: Vorträge und Forschungen: Sonderbände, Vol 2 (1964): Heinrich Büttner: Heinrichs I. Südwest- und Westpolitik
Creators: name: Vorträge Und Forschungen: Sonderbände
Publisher: name: University Library Heidelberg
Year: 2015

description: Heinrichs I. Südwest- und Westpolitik
Assessing and coping with uncertainties in landscape planning: an overview
Creators: name: Neuendorf, Felix
name: Von Haaren, Christina
name: Albert, Christian
Publisher: name: Dordrecht : Springer Netherland
Year: 2018
Subjects: subject: Communication of uncertainty
subject: Environmental planning
subject: Landscape planning
subject: Uncertainty
subject: Uncertainty assessment
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Context: Although uncertainties are ubiquitous in landscape planning, so far, no systematic understanding exists regarding how they should be assessed, appropriately communicated and what impacts they yield on decision support. With increasing interest in the role of uncertainties in science and policy, a synthesis of relevant knowledge is needed to further promote uncertainty assessment in landscape planning practice. Objectives: The aim of this paper is to synthesize knowledge about types of uncertainties in landscape planning, of methods to assess these uncertainties, and of approaches for appropriately coping with them. Methods: The paper is based on a qualitative literature review of relevant papers identified in the ISI Web of Knowledge and supplemented by frequently cited publications. The identification and synthesis of relevant information was guided by a developed framework concerning uncertainty in landscape planning. Results: The main types of uncertainties identified in landscape planning are data-, model-, projection- and evaluation uncertainty. Various methods to address these uncertainties have been identified, including statistical methods for the assessment of uncertainties in planning approaches that help to cope with uncertainties. The integration of uncertainty assessments into landscape planning results is lacking. Conclusions: The assessment of uncertainties in landscape planning have been addressed by science, but what is missing are considerations and ideas on how to use this knowledge to foster uncertainty analysis in landscape planning practice. More research is needed on how the application of identified approaches into landscape planning practice can be achieved and how these results might affect decision makers.
title: Vorträge und Forschungen: Sonderbände, Vol 9 (1971): Beiträge zur Geschichte Italiens im 12. Jahrhundert
Creators: name: Vorträge Und Forschungen: Sonderbände
Publisher: name: University Library Heidelberg
Year: 2015

description: Beiträge zur Geschichte Italiens im 12. Jahrhundert
description: Titel / Impressum
 Friedrich I. und der hohe italienische Adel...53-92
 Verlagsinformationen
 Grundzüge der religiösen Geschichte Italiens im 12. Jahrhundert...5-35
 Byzanz kehrt nach Italien zurück...37-51
Type I X-ray bursts' spectra and fuel composition from the atoll and transient source 4U 1730$-$22
Creators: name: Lu, Yongqi
name: Li, Zhaosheng
name: Pan, Yuanyue
name: Yu, Wenhui
name: Chen, Yupeng
name: Ji, Long
name: Ge, Mingyu
name: Zhang, Shu
name: Qu, Jinlu
name: Song, Liming
name: Falanga, Maurizio
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: NICER observed two outbursts from the neutron star low-mass X-ray binary 4U~1730$-$22 in 2021 and 2022, which showed a similar spectral evolution in the hardness-intensity diagram. Seventeen type I X-ray bursts were identified in both outbursts. The X-ray burst spectra showed clear deviations from the blackbody model, firstly $\sim10$ s after onset. Adding the enhanced persistent emission due to the Poynting-Robertson drag or the reflection from the accretion disk both significantly improved the fitting results. We found that 12 out of 17 X-ray bursts showed the photospheric radius expansion (PRE) characteristic. Considering the nine PRE bursts out of ten X-ray bursts observed by Insight-HXMT, 78\% of bursts from 4U~1730--22 exhibited PRE. According to the burst rise time, the duration, the local accretion rate, and the burst fuel composition estimated from recurrence time, we propose that these PRE bursts were powered by pure helium. From the touchdown flux of PRE bursts, we estimate the source distance of $ d=7.54\pm{0.46} (X=0)$ kpc for a canonical neutron star with $M_{\rm NS}=1.4M_\odot$ and $R_{\rm NS}=10~{\rm km}$.
description: 11 pages, 6 figures; Matches the version published in A&A
title: Vorträge und Forschungen: Sonderbände, Vol 31 (1984): Michael Borgolte: Geschichte der Grafschaften Alemanniens in fränkischer Zeit
Creators: name: Vorträge Und Forschungen: Sonderbände
Publisher: name: University Library Heidelberg
Year: 2015

description: Geschichte der Grafschaften Alemanniens in fränkischer Zeit
INNOVATIVE EDUCATIONAL TECHNOLOGIES OF DEVELOPING SPECIFIC COMPETENT SKILL OF TEACHERS OF BOL AJAK TECHNOLOGICAL EDUCATION
Creators: name: Hajikarimova, Gulasal
Publisher: name: Zenodo
Year: 2023

description: In this articleformation of pedagogical potential of students, application of modern pedagogical technologies to the educational process based on the competence approach, use of information and communication technologies in the course of the lesson, preparation and implementation of state education standards at the level of developed countries, knowledge, skills and qualifications of students , activation of competencies is given.
THz Magneto-electric atomic rotations in the chiral compound Ba$_3$NbFe$_3$Si$_2$O$_{14}$
Creators: name: Chaix, Laura
name: De Brion, Sophie
name: Levy-Bertrand, Florence
name: Simonet, Virginie
name: Ballou, Rafik
name: Canals, Benjamin
name: Lejay, Pascal
name: Brubach, Jean-Blaise
name: Greff, Gaëlle
name: Willaert, Fabrice
name: Roy, Pascale
name: Cano, Andres
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have determined the terahertz spectrum of the chiral langasite Ba$_3$NbFe$_3$Si$_2$O$_{14}$ by means of synchrotron-radiation measurements. Two excitations are revealed that are shown to have a different nature. The first one, purely magnetic, is observed at low temperature in the magnetically ordered phase and is assigned to a magnon. The second one persits far into the paramagnetic phase and exhibits both an electric and a magnetic activity at slightly different energies. This magnetoelectric excitation is interpreted in terms of atomic rotations and requires a helical electric polarization.
Barriers to implementing pro-cycling policies: A case study of Hamburg
Creators: name: Wang, Luqi
Publisher: name: Basel : MDPI AG
Year: 2018
Subjects: subject: Barrier
subject: Cycling
subject: Hamburg
subject: Policy implementation
subject: action plan
subject: expert system
subject: literature review
subject: negotiation process
subject: policy implementation
subject: questionnaire survey
subject: stakeholder
subject: strategic approach
subject: Germany
subject: Hamburg [Germany]
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt

description: Cycling is gaining increasing attention as a convenient, environmentally friendly, and fitness-improving mode of transport. While many policy interventions have been made to promote cycling, not enough research has focused on the barriers to implementing pro-cycling policies. For effective policy implementation, identifying major barriers and removing them is critical. This study took an in-depth look at Hamburg which started a major cycling promotion in 2008. According to expert interviews and literature surveys, the author found that the major barriers are physical, political and institutional, and social and cultural. Specifically, the city lacks enough physical space, political support, and the evaluation of travel behavior and demand. Also, some private stakeholders are reluctant to give up on-street car parking space for cycling lanes, and the negotiation process is difficult and time-consuming. To overcome these barriers, Hamburg requires cycling-oriented urban design, a strategic and integrated cycling action plan, strong political support, and target group-oriented communication.
title: Vorträge und Forschungen: Sonderbände, Vol 45 (1999): Harald Rainer Derschka: Die Ministerialen des Hochstiftes Konstanz
Creators: name: Vorträge Und Forschungen: Sonderbände
Publisher: name: University Library Heidelberg
Year: 2015

description: Die Ministerialen des Hochstiftes Konstanz
description: Die Ministerialen des Hochstiftes Konstanz
Responsible Knowledge Management in Energy Data Ecosystems
Creators: name: Janev, Valentina
name: Vidal, Maria-Esther
name: Pujić, Dea
name: Popadić, Dušan
name: Iglesias, Enrique
name: Sakor, Ahmad
name: Čampa, Andrej
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: big data analytic
subject: data exchange
subject: data integration systems
subject: energy big data
subject: knowledge graphs
subject: semantic interoperability
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: This paper analyzes the challenges and requirements of establishing energy data ecosystems (EDEs) as data-driven infrastructures that overcome the limitations of currently fragmented energy applications. It proposes a new data-and knowledge-driven approach for management and process-ing. This approach aims to extend the analytics services portfolio of various energy stakeholders and achieve two-way flows of electricity and information for optimized generation, distribution, and electricity consumption. The approach is based on semantic technologies to create knowledge-based systems that will aid machines in integrating and processing resources contextually and intelligently. Thus, a paradigm shift in the energy data value chain is proposed towards transparency and the responsible management of data and knowledge exchanged by the various stakeholders of an energy data space. The approach can contribute to innovative energy management and the adoption of new business models in future energy data spaces. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
Correction on "Towards detecting swath events in terrasar-x time series to establish NATURA 2000 grassland habitat swath management as monitoring parameter"
Creators: name: Schuster, Christian
name: Ali, Iftikhar
name: Lohmann, Peter
name: Frick, Annett
name: Förster, Michael
name: Kleinschmit, Birgit
Publisher: name: Basel : MDPI AG
Year: 2012
Subjects: subject: 3D
subject: Airborne laser scanning
subject: Crown delineation
subject: EuroSDR
subject: Individual tree inventory
subject: ISPRS
subject: Tree detection
subject: Tree extraction
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik

description: Correction on "Towards detecting swath events in terrasar-x time series to establish NATURA 2000 grassland habitat swath management as monitoring parameter". In: Remote Sensing 3 (2011), Nr. 7, S. 1308-1322. DOI: https://doi.org/10.3390/rs3071308
Chenopodium opulifolium Chaix
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. Opalus Miller (A. opulifolium Chaix s. lato, A. italum Lauth) Cat. 58. In der ssp. variabile (Pax) Schinz et Keller (ssp. italum Gams). Bis 1450 m. l: Ob Muraz bis Djeux neire, 1420 m (Oberli); Evionnaz (F.). - 2: Ob Branson-Saillon bis 1450 m (Gams). - 3: Ob Charrat (F.) Festgestellt wurden die var. nemorale Chabert (var. opulifolium Fiori) und var. Opalus (Miller) Becherer 1928 (var. rotundifolium [Lam.] Fiori).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: Increasing the Efficacy and Integration of a Biocontrol Tool for Managing Canada Thistle in the Intermountain West
Creators: name: Young, Steve
Publisher: name: Utah State University
Year: 2019

description: The goal is to further refine our understanding of how to initiate and enchance P. punctiformis systemic infection and integrate this knowledge with other weed management tactics to improve IWM approaches for Canada thistle control in the Intermountain West.
A Framework for Structuring Resilience and its Application to Procurement
Creators: name: Linnartz, Maria
name: Schuh, Günther
name: Stich, Volker
Publisher: name: Hannover : publish-Ing.
Year: 2022
Subjects: subject: Resilience
subject: Framework
subject: Disruptions
subject: Resilience Principles
subject: Procurement
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Companies operate in an increasingly volatile environment where different developments like shorter product lifecycles, the demand for customized products and globalization increase the complexity and interconnectivity in supply chains. Current events like Brexit, the COVID-19 pandemic or the blockade of the Suez canal have caused major disruptions in supply chains. This demonstrates that many companies are insufficiently prepared for disruptions. As disruptions in supply chains are expected to occur even more frequently in the future, the need for sufficient preparation increases. Increasing resilience provides one way of dealing with disruptions. Resilience can be understood as the ability of a system to cope with disruptions and to ensure the competitiveness of a company. In particular, it enables the preparation for unexpected disruptions. The level of resilience is thereby significantly influenced by actions initiated prior to a disruption. Although companies recognize the need to increase their resilience, it is not systematically implemented. One major challenge is the multidimensionality and complexity of the resilience construct. To systematically design resilience an understanding of the components of resilience is required. However, a common understanding of constituent parts of resilience is currently lacking. This paper, therefore, proposes a general framework for structuring resilience by decomposing the multidimensional concept into its individual components. The framework contributes to an understanding of the interrelationships between the individual components and identifies resilience principles as target directions for the design of resilience. It thus sets the basis for a qualitative assessment of resilience and enables the analysis of resilience-building measures in terms of their impact on resilience. Moreover, an approach for applying the framework to different contexts is presented and then used to detail the framework for the context of procurement.
Measurement uncertainty of radiated electromagnetic emissions in in situ tests of wind energy conversion systems
Creators: name: Koj, Sebastian
name: Hoffmann, Axel
name: Garbe, Heyno
Publisher: name: Göttingen : Copernicus GmbH
Year: 2018
Subjects: subject: Energy conversion
subject: Equipment testing
subject: Wind
subject: Wind power
subject: Analytical approach
subject: Electromagnetic emissions
subject: Equipment under tests
subject: Expression of uncertainty
subject: In-situ measurement
subject: Measurement uncertainty
subject: Standard procedures
subject: Wind energy conversion system
subject: Uncertainty analysis
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The electromagnetic (EM) emissions of wind energy conversion systems (WECS) are evaluated in situ. Results of in situ tests, however, are only valid for the examined equipment under test (EUT) and cannot be applied to series production as samples, as the measurement uncertainty for in situ environment is not characterized. Currently measurements must be performed on each WECS separately, this is associated with significant costs and time requirement to complete. Therefore, in this work, based on the standard procedure according to the Guide to the Expression of Uncertainty (GUM, 2008) the measurement uncertainty is characterized. From current normative situation obtained influences on the measurement uncertainty: wind velocity and undefined ground are evaluated. The influence of increased wind velocity on the measurement uncertainty is evaluated with an analytical approach making use of the dipole characteristic. A numerically evaluated model provides information about the expected uncertainty due to reflection on different textures and varying values of relative ground moisture. Using a classical reflection law based approach, the simulation results are validated. Thanks to the presented methods, it is possible to successfully characterize the measurement uncertainty of in situ measurements of WECS's EM emissions.
Active temperature and velocity correlations produced by a swimmer suspension
Creators: name: Parra-Rojas, C.
name: Soto, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The agitation produced in a fluid by a suspension of micro-swimmers in the low Reynolds number limit is studied. In this limit, swimmers are modeled as force dipoles all with equal strength. The agitation is characterized by the active temperature defined, as in kinetic theory, as the mean square velocity, and by the equal-time spatial correlations. Considering the phase in which the swimmers are homogeneously and isotropically distributed in the fluid, it is shown that the active temperature and velocity correlations depend on a single scalar correlation function of the dipole-dipole correlation function. By making a simple medium range oder model, in which the dipole-dipole correlation function is characterized by a single correlation length $k_0^{-1}$ it is possible to make quantitative predictions. It is found that the active temperature depends on the system size, scaling as $L^{4-d}$ at large correlation lengths $L\ll k_0^{-1}$, while in the opposite limit it saturates in three dimensions and diverges logarithmically with the system size in two dimensions. In three dimensions he velocity correlations decay as $1/r$ for small correlation lengths, while at large correlation lengths the transverse correlation function becomes negative at maximum separation $r\sim L/2$, effect that disappears as the system increases in size.
description: 7 pages, 2 figures, accepted in Phys. Rev. E
Scheduling and Aggregation Design for Asynchronous Federated Learning over Wireless Networks
Creators: name: Hu, Chung-Hsuan
name: Chen, Zheng
name: Larsson, Erik G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Federated Learning (FL) is a collaborative machine learning (ML) framework that combines on-device training and server-based aggregation to train a common ML model among distributed agents. In this work, we propose an asynchronous FL design with periodic aggregation to tackle the straggler issue in FL systems. Considering limited wireless communication resources, we investigate the effect of different scheduling policies and aggregation designs on the convergence performance. Driven by the importance of reducing the bias and variance of the aggregated model updates, we propose a scheduling policy that jointly considers the channel quality and training data representation of user devices. The effectiveness of our channel-aware data-importance-based scheduling policy, compared with state-of-the-art methods proposed for synchronous FL, is validated through simulations. Moreover, we show that an ``age-aware'' aggregation weighting design can significantly improve the learning performance in an asynchronous FL setting.
Review of Recent Neutrino Physics Research
Creators: name: Kisslinger, Leonard S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review recent research in neutrino physics, including neutrino oscillations to test time reversal and CP symmetry violations, the measurement of parameters in the U matrix, sterile neutrino emission causing pulsar kicks, and neutrino energies in the neutrinosphere.
description: 24 pages, 11 figures. arXiv admin note: text overlap with arXiv:1203.6613
Modeling and simulation of stochastically deformed waveguides using schelkunoff's method
Creators: name: Pham, Hoang Duc
name: Ploennigs, Soeren
name: Mathis, Wolfgang
Publisher: name: Göttingen : Copernicus GmbH
Year: 2018
Subjects: subject: Computation theory
subject: Electromagnetic wave propagation
subject: Electromagnetic waves
subject: Maxwell equations
subject: Numerical methods
subject: Optical waveguides
subject: Analytic solution
subject: Coupled mode theory
subject: General theory
subject: Model and simulation
subject: Propagation constant
subject: Propagation of electromagnetic waves
subject: Transmission medium
subject: Transverse field
subject: Circular waveguides
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: This paper deals with the propagation of electromagnetic waves in cylindrical waveguides with irregularly deformed cross-sections. The general theory of electromagnetic waves is of high interest because of its practical use as a transmission medium. But only in a few special cases, an analytic solution of Maxwell's equations and the appropriate boundary conditions can be found (Spencer 1951). The coupled-mode theory, also known as Schelkunoff's method, is a semi-numerical method for computing electromagnetic waves in hollow and cylindrical waveguides bounded by perfect electric walls (Saad 1985). It allows to calculate the transverse field pattern and the propagation constant. The aim of this paper is to derive the so-called generalized telegraphist's equations for irregular deformed waveguides. Subsequently, the method's application will be used on a circular waveguide as an illustrating example.
Order reduction of hierarchical interconnected dynamical systems
Creators: name: Popp, Michael
name: Mathis, Wolfgang
Publisher: name: Göttingen : Copernicus GmbH
Year: 2018
Subjects: subject: Benchmarking
subject: Dynamical systems
subject: Large scale systems
subject: Piecewise linear techniques
subject: Structured programming
subject: Component-connection models
subject: Hierarchical structures
subject: High complexity
subject: Large system
subject: Modern engineering
subject: Order reduction
subject: Piecewise linear
subject: Simulation process
subject: Hierarchical systems
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The simulation of large scale nonlinear dynamical interconnected systems, as they arise in all modern engineering disciplines, is a usual task. Due to the high complexity of the considered systems, the principle of thinking in hierarchical structures is essential and common among engineers. Therefore, this contribution proposes an approach for the numerical simulation of large systems, which keeps the hierarchical system structure alive during the entire simulation process while simultaneously exploiting it for order reduction purposes. This is accomplished by embedding the trajectory piecewise linear order reduction scheme in a modified variant of the component connection modeling for building interconnected system structures. The application of this concept is demonstrated by means of a widely used benchmark example and a modified variant of it.
X-ray Emission from Strongly Asymmetric Circumstellar Material in the Remnant of Kepler's Supernova
Creators: name: Burkey, Mary T.
name: Reynolds, Stephen P.
name: Borkowski, Kazimierz J.
name: Blondin, John M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Kepler's supernova remnant resulted from a thermonuclear explosion, but is interacting with circumstellar material (CSM) lost from the progenitor system. We describe a statistical technique for isolating X-ray emission due to CSM from that due to shocked ejecta. Shocked CSM coincides well in position with 24 $μ$m emission seen by {\sl Spitzer}. We find most CSM to be distributed along the bright north rim, but substantial concentrations are also found projected against the center of the remnant, roughly along a diameter with position angle $\sim 100^\circ$. We interpret this as evidence for a disk distribution of CSM before the SN, with the line of sight to the observer roughly in the disk plane. We present 2-D hydrodynamic simulations of this scenario, in qualitative agreement with the observed CSM morphology. Our observations require Kepler to have originated in a close binary system with an AGB star companion.
description: 16 pages, 4 figures. Accepted by ApJ
title: Beiträge zur Geschichte der Römischen Legio X Gemina, von Joseph Aschbach
Creators: name: Ritter, Franz Von
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Beiträge zur Geschichte der Römischen Legio X Gemina mit besonderer Rücksicht auf ihr Standlager zu Vindobona von Joseph Aschbach. Separatausdruck aus dem V. Bande der Berichte und Mittheilungen des Alterthums-Vereins in Wien (1861).
Stability of a class of neutral vacuum bubbles
Creators: name: Morris, J. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A model that gives rise to vacuum bubbles is considered where the domain wall field interacts with another real scalar field, resulting in the formation of domain ribbons within the host domain wall. Ribbon-antiribbon annihilations produce elementary bosons whose mass inside the wall is different from the mass in vacuum. Two cases are considered, where the bosons get trapped either within the bubble wall or the bosons get trapped within the vacuum enclosed by the bubble. The bosonic (meta)stabilization effect on the bubble is examined in each case. It is found that when the bosons become trapped within the bubble wall, the stabilization mechanism lasts for only a limited amount of time, and then the bubble undergoes unchecked collapse. However, when the bosons become trapped within the bubble's interior volume, the bubble can be long-lived, provided that it has a sufficiently thin wall.
description: 11 pages
Responsive polymers for analytical applications: A review
Creators: name: Islam, M. R.
name: Lu, Z.
name: Li, X.
name: Sarker, A. K.
name: Hu, L.
name: Choi, P.
name: Hakobyan, N.
name: Serpe, M. J.
Publisher: name: University of Alberta Libraries
Year: 2013

Abstract
Super-A-polynomial
Creators: name: Fuji, Hiroyuki
name: Sułkowski, Piotr
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We review a construction of a new class of algebraic curves, called super-A-polynomials, and their quantum generalizations. The super-A-polynomial is a two-parameter deformation of the A-polynomial known from knot theory or Chern-Simons theory with SL(2,C) gauge group. The two parameters of the super-A-polynomial encode, respectively, the t-deformation which leads to the "refined A-polynomial", and the Q-deformation which leads to the augmentation polynomial of knot contact homology. For a given knot, the super-A-polynomial encodes the asymptotics of the corresponding S^r-colored HOMFLY homology for large r, while the quantum super-A-polynomial provides recursion relations for such homology theories for each r. The super-A-polynomial also admits a simple physical interpretation as the defining equation for the space of SUSY vacua in a circle compactification of the effective 3d N=2 theory associated to a given knot (complement). We discuss properties of super-A-polynomials and illustrate them in many examples.
description: Proceedings of String Math 2012, Bonn; 29 pages, 5 figures