cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Zelotes talpinus
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Zelotes
Zelotes talpinus

description: Zelotes talpinus (L. Koch, 1872)
NEW DATA. — Torgnon: Lo Ditor, 1950 m, peat bog, 26.VII-14. VIII.2013, 7 ♂, leg. Negro; Arvier: Lago di Lolair, 1175 m, broadleaved forest, 13.VI-4.VII.2012, 1 ♀, leg. Negro (MRSN-VDA); Ayas: Antagnod, 1970-2070 m, ski pistes, 2007, leg. Franco & Negro; same locality, alpine pasture, 2007, leg. Franco & Negro.
 LITERATURE. — Calloni 1889; di Caporiacco 1928; [Isaia 2005]; De Angelis & Fantoni 2008; Negro et al. 2009, 2010; [Rossi & Bosio 2012].
CHOROTYPE. — SEU.
MACROHABITAT. — Broadleaved forests, alpine pastures, ski pistes, wetlands.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 72, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Non-linear electrodynamics generalization of the rotating BTZ black hole
Creators: name: Cañate, Pedro
name: Magos, Daniela
name: Breton, Nora
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We obtain two exact solutions of Einstein gravity coupled to nonlinear electrodynamics (NLED) in $(2+ 1)$-dimensional Anti-de Sitter (AdS) spacetime. The solutions are characterized by the mass $M$, angular momentum $J$, cosmological constant or (anti) de Sitter parameter $Λ$, and an electromagnetic parameter $Q$, that is related to an electric field in the first solution and to a magnetic charge for the second solution. Depending on the range of the parameters, the solutions admit a charged rotating asymptotically AdS black hole (BH) interpretation or a charged rotating asymptotically AdS traversable wormhole (WH). If the electromagnetic field is turned off, the stationary Bañados-Teitelboim-Zanelli (BTZ) BH is recovered; in such a way that our BH-WH solutions are nonlinear charged generalizations of the stationary BTZ-BH. Moreover, in contrast to the BTZ metric, the derived AdS solutions are singular at certain radius $r_{s} \neq 0$, resembling the ring singularity of the Kerr-Newman spacetime; while if $Λ$ is positive the curvature invariants of the second solution are finite.
description: 24 pages, 8 figures
230Th/U-dating of fossil corals and speleothems
Creators: name: Scholz, Denis
name: Hoffmann, Dirk
Publisher: name: Geozon Science Media
Year: 2008

description: Marine und terrestrische Karbonate können im Altersbereich von bis zu 600.000 Jahren mit Uranreihen-Ungleichgewichtsmethoden sehr präzise datiert werden. In diesem Artikel wird die 230Th/UDatierung von Riffkorallen und Speläothemen dargestellt. Anforderungen, Potenzial aber auch Probleme der Datierung beider Archive werden eingehend diskutiert. Fossile Riffkorallen werden sowohl als Anzeiger der Meeresspiegelschwankungen der Vergangenheit als auch als Paläoklimaarchiv mit sehr hoher Auflösung genutzt. Für beide Anwendungen werden äußerst präzise und zuverlässige Alter benötigt, die mit der 230Th/U-Methode bestimmt werden können. Viele fossile Riffkorallen zeigen jedoch Anzeichen von nachträglicher diagenetischer Veränderung, welche die Genauigkeit der 230Th/U-Alter mehr limitiert als die Messgenauigkeit. Die Methoden zur Identifikation diagenetisch veränderter Korallen werden dargestellt, und drei in den letzten Jahren entwickelte Methoden zur Datierung von Korallen, die sich als offene Systeme verhalten haben, werden diskutiert. Speläotheme sind bedeutende Klimaarchive, da sie in fast allen Gegenden vorkommen, was es ermöglicht, Klimaveränderungen in verschiedenen Gebieten zu untersuchen und direkt miteinander zu vergleichen. Sie zeigen in der Regel keine Anzeichen für nachträgliche Störungen des U-Th-Systems können aber in Einzelfällen signifikante Mengen von initialem 230Th enthalten. Die gängigen Korrekturverfahren und Methoden, um zuverlässige Datierungen zu erhalten, werden dargestellt. Weiterhin geben wir einen Überblick über die derzeitigen Methoden zur Messung von Uranreihenisotopen.
description: research
Die Quartärforschung im Lichte der modernen Anforderungen der Angewandten Geologie
Creators: name: Lüttig, Gerd
Publisher: name: Geozon Science Media
Year: 1987

description: Die Angewandte Geologie, also Wirtschaftsgeologie, Lagerstättenkunde, Ingenieur-, Hydro-, Umwelt-, Planungs- usw. Geologie, bekommt von der Gesellschaft Aufträge und Anforderungen gestellt, die — wenigstens in Mitteleuropa — i. w. mit Lockerablagerungen, vorwiegend quartären Alters, zu tun haben. Die Bedarfsstatistik läßt das klar erkennen. Hingegen zeigt die statistische Betrachtung von Ausbildung und Lehre sowie der Forschungsaktivitäten ein gänzlich anderes Bild. Den Gründen dieser Diskrepanz wird nachgegangen; die Folgerungen werden aufgezeigt.
description: research
Pollenanalytische Untersuchungen zur Entstehungs- und Entwicklungsgeschichte des Bruchbergmoores/Oberharz
Creators: name: Urban, Brigitte
Publisher: name: Geozon Science Media
Year: 1978

description: Auf drei kleinen benachbarten Moorflächen des Bruchberg-Moores wurden ein durchlaufendes Pollenprofil hergestellt und weitere Untersuchungen nächst der Torfbasis durchgeführt. Anhand der Untergrundmorphologie und der Basisproben konnte die flächenhafte Moorausbreitung rekonstruiert werden. Die ältesten Vermoorungen setzen demnach im Präboreal ein. Unterbrechungen im Moorwachstum wurden am Ende der Waldzeiten VI (älteres Atlantikum) und in VIII b (Subboreal) gefunden.
description: research
Eine Folge von Eem und 4 Weichsel-Interstadialen in Oerel/Niedersachsen und ihr Vegetationsablauf
Creators: name: Behre, Karl-Ernst
name: Lade, Udo
Publisher: name: Geozon Science Media
Year: 1986

description: An dem Interstadialvorkommen von Oerel im niedersächsischen Tiefland wurden umfangreiche geologische und vegetationsgeschichtliche Untersuchungen durchgeführt. Die Lokalität liegt in einer buchtförmigen Niederung am Osthang der Eisrandlage Lamstedter Staffel (Drenthe-2-Vorstoß der Saale-Kaltzeit). Sondierungen und Bohrungen ergaben ein ausgedehntes Eem-Vorkommen und darüber bis zu 4 durch Sande getrennte Weichsel-Interstadiale, die flächig ausgebildet sind. In der Umgebung des pollenanalytisch bearbeiteten Standardprofils OE 61 verlief die Entwicklung wie folgt: An der Basis liegen wahrscheinlich elster- sowie saalezeitliche Bildungen. Das Eem beginnt mit Abschnitt IV und ist bis VI limnisch, anschließend bis E VII sowie teilweise im Abschnitt WF I des Weichselfrüh-glazials als Torf ausgebildet. In den verschiedenen Stadialen wurde überwiegend reiner Sand abgelagert, dem Brörup -und Odderade-Interstadial gehen jedoch noch längere limnische Phasen voraus. Beide Interstadiale sind ebenso wie die jüngeren Interstadiale Oerel und Glinde als Torf ausgebildet. Die organogene Schichtenfolge im Bereich von OE 61 wird wie folgt eingeordnet bzw. neu benannt: Glinde-Interstadial, Oerel-Interstadial, Odderade-Interstadial, Brörup-Interstadial, Eem-Interglazial. Nach den pollenanalytischen Untersuchungen ist das Eem normal ausgebildet; Brörup und Odderade stellen zwei große bewaldete Interstadiale dar. Oerel und Glinde waren waldfrei mit Strauchtundra und gehören dem frühen Weichsel-Pleniglazial an, liegen also vor den niederländischen pleniglazialen Interstadialen. Vielleicht reicht das Glinde noch in den Beginn des Moershoofd-Komplexes.
description: research
Theoretical analysis of the saturation phase of the $1/1$ energetic-ion-driven resistive interchange mode
Creators: name: Varela, J.
name: Spong, D. A.
name: Garcia, L.
name: Ohdachi, S.
name: Watanabe, K. Y.
name: Seki, R.
name: Ghai, Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The aim of the present study is to analyze the saturation regime of the energetic-ion-driven resistive interchange mode (EIC) in the LHD plasma. A set of non linear simulations are performed by the FAR3d code that uses a reduced MHD model for the thermal plasma coupled with a gyrofluid model for the energetic particles (EP) species. The hellically trapped EP component is introduced through a modification of the averaged drift velocity operator to include their precessional drift. The non linear simulation results show similar 1/1 EIC saturation phases with respect to the experimental observations, reproducing the enhancement of the n/m = 1/1 resistive interchange modes (RIC) amplitude and width as the EP $\beta$ increases, the EP beta threshold for the 1/1 EIC excitation, the further destabilization of the 1/1 EIC as the population of the helically trapped EP increases and the triggering of burst events. The frequency of the 1/1 EIC calculated during the burst event is 9.4 kHz and the 2/2 and 3/3 overtones are destabilized, consistent with the frequency range and the complex mode structure measured in the experiment. In addition, the simulation shows the inward propagation of the 1/1 EIC due to the non linear destabilization of the 3/4 and 2/3 EPMs, leading to the partial overlapping between resonances during the burst event. Finally, the analysis of the 1/1 EIC stabilization phase shows the excitation of the 1/1 RIC as soon as the flattening induced by the 1/1 EIC in the pressure profile vanishes, leading to the retrieval of the pressure gradient at the plasma periphery and the overcoming of the RIC stability limit.
description: arXiv admin note: text overlap with arXiv:2010.04598
The Role of Energy Cost on Accuracy, Sensitivity, Specificity, Speed and Adaptation of T Cell Foreign and Self Recognition
Creators: name: Shin, Gyubaek
name: Wang, Jin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: The critical role of energy consumption in biological systems including T cell discrimination process has been investigated in various ways. The kinetic proofreading(KPR) in T cell recognition involving different levels of energy dissipation influences functional outcomes such as error rates and specificity. In this work, we study quantitatively how the energy cost influences error fractions, sensitivity, specificity, kinetic speed in terms of Mean First Passage Time(MFPT) and adaption errors. These provide the background to adequately understand T cell dynamics. It is found that energy plays a central role in the system that aims to achieve minimum error fractions and maximum sensitivity and specificity with the fastest speed under our kinetic scheme for which numerical values of kinetic parameters are specially chosen, but such a condition can be broken with varying data. Starting with the application of steady state approximation(SSA) to the evaluation of the concentration of each complex produced associated with KPR, which is used to quantify various observables, we present both analytical and numerical results in detail.
description: 13 pages, 14 figures
The XMM/2dF survey III: Comparison between optical and X-ray cluster detection methods
Creators: name: Basilakos, S.
name: Plionis, M.
name: Georgakakis, A.
name: Georgantopoulos, I.
name: Gaga, T.
name: Kolokotronis, V.
name: Stewart, G. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We directly compare X-ray and optical techniques of cluster detection by combining SDSS photometric data with a wide-field ($\sim 1.8$ deg$^{2}$) XMM-{\em Newton} survey in the North Galactic Pole region. The optical cluster detection procedure is based on merging two independent selection methods - a smoothing+percolation technique, and a Matched Filter Algorithm. The X-ray cluster detection is based on a wavelet-based algorithm, incorporated in the SAS v.5.2 package. The final optical sample counts 9 candidate clusters with richness of more than 20 galaxies, corresponding roughly to APM richness class. Three, of our optically detected clusters are also detected in our X-ray survey. The most probable cause of the small number of optical cluster candidates detected in our X-ray survey is that they are relatively poor clusters, fainter than the X-ray flux limit (for extended sources) of our survey $f_{x}(0.3-2 {\rm keV}) \simeq 2 \times 10^{-14} erg cm^{-2} s^{-1}$.
description: 9 pages, 5 figures, MNRAS accepted
Locations of Auroral Kilometric Radiation Bursts Inferred From Multi-Spacecraft Wideband Cluster VLBI Observations i: Description of Technique and Initial Results
Creators: name: Mutel, R. L.
name: Gurnett, D. A.
name: Christopher, I. W.
name: Pickett, J.
name: Schlax, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Cluster Wideband Data instrument has been used to determine the locations of auroral kilometric radiation (AKR) using very long baseline interferometry. The technique involves cross-correlating individual AKR bursts from all six Cluster baselines using time and frequency filtered waveforms. We report the locations of over 1,700 individual AKR bursts during six observing epochs between 10 July 2002 and 22 January 2003 when the Cluster constellation was high above the southern or northern hemisphere. In general we find that the AKR burst locations lie along magnetic field lines which map onto the nighttime auroral zone as expected from previous AKR studies. The distribution of AKR auroral footprint locations at each epoch had a overall spatial scale between 1000 - 2000 km, much larger than the positional uncertainty of an individual AKR burst location magnetic footprint, but a small fraction of the auroral oval. For two of the six epochs, there was a significant drift in the mean location of AKR activity over a period of 1-2 hours. The drift was predominantly in latitude at one epoch and in longitude at the other, with average drift speed V ~ 80-90 m s-1 at the AKR emission location.
description: 31 pages, 9 figures, accepted for publication 19 June 2003 in JGR Space Physics. accepted for publication
Interaction Between Superconducting and Ferromagnetic Order Parameters in Graphite-Sulfur Composites
Creators: name: Moehlecke, S.
name: Kopelevich, Y.
name: Maple, M. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The superconductivity of graphite-sulfur composites is highly anisotropic and associated with the graphite planes. The superconducting state coexists with the ferromagnetism of pure graphite, and a continuous crossover from superconducting to ferromagnetic-like behavior could be achieved by increasing the magnetic field or the temperature. The angular dependence of the magnetic moment m(alpha) provides evidence for an interaction between the ferromagnetic and the superconducting order parameters.
description: 11 pages, 4 figures, to be published in Phys. Rev. B
Micaria formicaria
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Micaria
Micaria formicaria

description: Micaria formicaria (Sundevall, 1831)
LITERATURE. — Pesarini 1997; [Isaia 2005]; De Angelis & Fantoni 2008; [Rossi & Bosio 2012].
CHOROTYPE. — PAL.
MACROHABITAT. — Not specified.
 NOTES. — See notes about A. labyrinthica.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 69, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Operation of a Continuous Flow Liquid Helium Magnetic Microscopy Cryostat as a Closed Cycle System
Creators: name: Barr, K.
name: Cookson, T.
name: Lagoudakis, K. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We demonstrate successful operation of a continuous flow liquid helium magnetic cryostat (Oxford Instruments, Microstat MO) in closed cycle operation using a modular cryocooling system (ColdEdge Technologies, Stinger). For the system operation, we have developed a custom gas handling manifold and we show that despite the lower cooling power of the cryocooler with respect to the nominal cryostat cooling power requirements, the magnetic cryostat can be operated in a stable manner. We provide the design of the gas handling manifold, and a detailed analysis of the system performance in terms of cooling times, magnetic field ramping rates and vibrations at the sample. Base temperature can be reached within 10 hours while the superconducting magnet can be energized at a ramping rate of 0.5 T/min. Vibrations are measured interferometrically and show amplitudes with a root mean square on the order of 5 nm permitting the use of the system for sensitive magnetic microscopy experiments.
description: 8 pages, 7 figures, includes supplementary material
title: The significance of social support and close relationships for people with learning disabilities
Creators: name: Lippold, Tessa
Publisher: name: The Open University
Year: 2000

description: Background and aims: The social and personal relationships of people with learning disabilities were explored, including the characteristics of their social networks, the extent of social integration and the availability of social support. It was hypothesised that people with learning disabilities would be less socially integrated, have more restricted social networks and more limited. social support than a comparison group of people with physical disabilities. Design and participants: A mixed methodology was employed. In the-first part of the study participants were 30 people with learning disabilities, a nominated carer for each of the 30 participants and a comparison group of 17 people with physical disabilities. The second part of the investigation consisted of semi-structured interviews with 6 of the people with learning disabilities. Measures: Measures used included-the Life Experiences Checklist, the Circles task, the Social Support Self Report, the Functional Support Inventory and the Social Circles Questionnaire. The author devised a semi-structured interview to assess understanding of different kinds of relationships. Transcripts were analysed using content analysis. Results: Levels of integration were better than expected in all areas apart from relationships. Participants reported a mean social network size of 11.7, significantly lower than the comparison group. The networks of people with learning disabilities were largely composed of family or friends with learning disabilities whereas non-disabled friends made up the majority of the network for the comparison group. There were few differences between the groups in terms a of perceived social support. Themes identified from the interview data included the provision of emotional support by friends and betrayal of trust in romantic relationships. Implications: The findings indicate that- people with learning disabilities may be functionally but not fully socially integrated within the community, thereby lacking opportunities to experience a wide range of relationships. Directions for future research are suggested.
Hahnia nava
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Hahniidae
Hahnia
Hahnia nava

description: Hahnia nava (Blackwall, 1841)
 LITERATURE. — Isaia 2005; Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — SIE.
MACROHABITAT. — Coniferous forests.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 72, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Near Extremal Schwarzschild-de Sitter Black Hole Area Spectrum from Quasi-normal Modes
Creators: name: Setare, M R
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the quasi-normal modes frequency of near extremal Schwarzschild-de Sitter black holes, we obtain area and entropy spectrum for black hole horizon. By using Boher-Sommerfeld quantization for an adiabatic invariant $I=\int {dE\over ω(E)}$, which $E$ is the energy of system and $ω(E)$ is vibrational frequency, we leads to an equally spaced mass spectrum. In the other term we extend directly the Kunstatter's approach [7] to determine mass and entropy spectrum of near extremal Schwarzschild-de Sitter black holes which is asymptotically de Sitter rather than asymptotically flat.
description: 7 pages, no figure
Neue 14C-Daten zur jüngeren Dryaszeit in den ecuadorianischen Anden
Creators: name: Heine, Klaus
name: Geyh, Mebus A.
Publisher: name: Geozon Science Media
Year: 2002

description: Glaziale Sedimente und Formen der tropischen Anden enthalten Paläoklima-Archive. Für die Jüngere Dryaszeit (Younger Dryas = YD) besteht eine kontroverse Diskussion bezüglich der Gletschervorstöße. Im Gebiet des Papallacta-Passes (Ostkordilleren in Ecuador) wird ein Gletschervorstoß durch Till und Moränen dokumentiert. Die glazialen Sedimente werden unter- und überlagert von Tephrahorizonten, Torf und anderen Sedimenten, die reich an organischem Material sind. Radiokarbon-Altersbestimmungen werden somit möglich. 29 14C-Alter zu diesem Gletschervorstoß publizierten Clapperton et al. (1997); weitere 29 14C-Alter werden hier vorgestellt. Die Daten belegen sowohl feuchte (=Gletschervorstoß) als auch trockene (= Gletscherabschmelzen) Klimabedingungen während der Jüngeren Dryaszeit. Unter Berücksichtigung der kalibrierten 14C-Alter ergibt sich ein Gletschervorstoß in der zweiten Hälfte der Jüngeren Dryaszeit und zu Beginn des Holozäns. An dem Beispiel wird belegt, daß die Interpretation der 14C-datierten Jüngere Dryaszeitlichen Gletschervorstöße mit größter Sorgfalt vorgenommen werden muß.
description: research
Finite size effects in the SS-model: two component nonlinear integral equations
Creators: name: Hegedus, Arpad
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive a finite set of nonlinear integral equations for describing the finite size dependence of the ground state energy of the O(4) nonlinear sigma model. By modifying the kernel functions of these equations we propose nonlinear integral equations for the finite size effects in the SS-model. The equations are formulated in terms of two complex valued unknown functions and they are valid for arbitrary real values of the couplings.
Jungpleistozäne und altholozäne Fauna (Gastropoda und Mammalia) vom Euerwanger Bühl bei Greding (Fränkischer Jura)
Creators: name: Koenigswald, Wighart Von
name: Rähle, Wolfgang
Publisher: name: Geozon Science Media
Year: 1975

description: Aus einer Höhlenruine werden Kleinsäuger- und Schneckenfaunen qualitativ und quantitativ erfaßt. Ein Komplex gehört in das Würmglazial, die übrigen in das Altholozän, und zwar nach den C14-Datierungen in das Präboreal und frühe Boreal. Altholozäne Kleinsäugerfaunen sind in Süddeutschland durch Pityms subterraneus sowie pleistozäne Reliktformen charakterisiert. In der Gastropodenfauna wird Zebrina detrita in einer reinen Discus ruderatus / Nesovitrea petronella Fauna nachgewiesen.
description: research
Tachyon model of Tsallis holographic dark energy
Creators: name: Liu, Yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we consider the correspondence between the tachyon dark energy model and the Tsallis holographic dark energy scenario in an FRW universe.We demonstrate the Tsallis holographic description of tachyon dark energy in an FRW universe and reconstruct the potential and basic results of the dynamics of the scalar field which describe the tachyon cosmology. In a flat universe, in the tachyon model of Tsallis holographic dark energy, independent of the existence of interaction between dark energy and matter or not, \dot{T}^2 must always be zero. Therefore, the equation of state {\omega}_D is always -1 in such a flat universe. For a non-flat universe, \dot{T}^2 cannot be zero so that {\omega}_D=-1 which cannot be used to explain the origin of the cosmological constant. \dot{T}^2 monotonically decreases with the increase in \cos(R_h/a) and \cosh(R_h/a) for different {\delta}'s. In particular, for an open universe, \dot{T}^2 is always larger than zero, while for a closed universe, \dot{T}^2 is always smaller than zerowhich is physically invalid. In addition, we conclude that with the increase in \cos(R_h/a) and \cosh(R_h/a), \dot{T}^2 always decreases monotonically irrespective of the value of b^2.
Interacting Ghost Dark Energy in Complex Quintessence Theory
Creators: name: Liu, Yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We employ a ghost model of interacting dark energy to obtain the equation of state \omega for ghost energy density in an FRW universe in complex quintessence theory. We reconstruct the potential and study the dynamics of the scalar field that describes complex quintessence cosmology. We perform \omega-\omega' analysis and stability analysis for both non-interacting and interacting cases and find that the same basic conclusion as for the real model, where \omega' = d\omega/dlna. Taking account of the effect of the complex part and assuming the real part of the quintessence field to be a "slow-rolling" field, we conclude that the non-interacting model cannot describe the real universe since this will lead to fractional energy density \Omega_D > 1, where \Omega_D can be defined as the ratio of \rho_D to \rho_{cr}. However, for the interacting case, if we take present \Omega_D = 0.73, then we can determine that b^2 = 0.0849, where b^2 is the interaction coupling parameter between matter and dark energy. In the real quintessence model, \Omega_D and b^2 are independent parameters, whereas in the complex quintessence model, we conclude that there is a relationship between these two parameters.
Micaria fulgens
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Micaria
Micaria fulgens

description: Micaria fulgens (Walckenaer, 1802)
NEW DATA. — Pont-Saint-Martin: Natural Reserve of Stagno di Holay, 775 m, wet meadow, 13.VI-4.VII.2011, 1♀, leg. Paschetta & Giuliano (MRSN-VDA); Torgnon: Lo Ditor, 1950 m, peat bog, 12-26.VII.2013, 1♀, leg. Negro; Saint Denis: Brison-Cly, 1000 m, broadleaved forest, 24.V-13. VI.2012, 1 ♀, leg. Negro; Ayas: Antagnod, 1970-2070 m, alpine pasture, leg. Franco & Negro.
 LITERATURE. — Calloni 1889; [Isaia 2005]; De Angelis & Fantoni 2008; Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — SIE.
MACROHABITAT. — Wetlands, broadleaved forests, alpine pastures.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 69, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Dual perturbation expansion for a classical $λϕ^4$ field theory
Creators: name: Frasca, Marco
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We prove the existence of a strong coupling expansion for a classical $λϕ^4$ field theory in agreement with the duality principle in perturbation theory put forward in [M.Frasca, Phys. Rev. A 58, 3439 (1998)]. The leading order solution is a snoidal wave taking the place of plane waves of the free theory. We compute the first order correction and show that higher order terms do renormalize the leading order solution.
description: 7 pages, no figures. Version accepted for publication in International Journal of Modern Physics A
Remote Casework: For Child Welfare Stakeholders in the Time of COVID-19 - Policy Maker Guidance on Child Welfare & Technology
Creators: name: IHeartTech
name: Sage, Melanie
name: Hitchcock, Laurel
Publisher: name: figshare
Year: 2020
Subjects: subject: 160799 Social Work not elsewhere classified
subject: FOS: Sociology
subject: 160701 Clinical Social Work Practice

description: This whitepaper provides evidence-informed guidance for child welfare stakeholders about the use of technology for remote and virtual casework during COVID-19. Best practices and tips are provided for policy makers only.
These are evidence-informed best practices only. They may not meet standards for an individual agency; local, state and federal regulations; and licensing bodies. Always consult with with appropriate authorities and stay up-to-date on research and protocols related to the use of technology in child welfare.
Eberlein decomposition for PV inflation systems
Creators: name: Baake, Michael
name: Strungaru, Nicolae
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 42B10, 52C23

description: The Dirac combs of primitive Pisot--Vijayaraghavan (PV) inflations on the real line or, more generally, in $\mathbb{R}^d$ are analysed. We construct a mean-orthogonal splitting for such Dirac combs that leads to the classic Eberlein decomposition on the level of the pair correlation measures, and thus to the separation of pure point versus continuous spectral components in the corresponding diffraction measures. This is illustrated with two guiding examples, and an extension to more general systems with randomness is outlined.
description: 19 pages; revised version with minor improvements
Performance of a prototype bakelite RPC at GIF++ using self-triggered electronics for the CBM Experiment at FAIR
Creators: name: Mondal, Mitali
name: Dey, Tanay
name: Chattopadhyay, Subhasis
name: Saini, Jogender
name: Ahammed, Zubayer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Muon Chamber (MuCh) is a sub-system of the Compressed Baryonic Matter (CBM) experiment for the detection of low-mass-vector mesons produced in high energy heavy-ion collisions at beam energies ranging from 2 AGeV to 11 AGeV and decaying in the di-muon channel. MuCh consists of a segmented absorber and four detector triplet stations sandwiched between the absorber segments. At the 3rd and 4th stations of MuCh, Resistive Plate Chambers (RPCs) have been conceived for muon tracking. We have tested the performance of a low resistivity bakelite RPC prototype equipped with self-triggered front end electronics (MuCh-XYTER) for the CBM Muon Chamber. A systematic study on the muon detection efficiency and time resolution has been carried out in a high-rate photon background at the Gamma Irradiation Facility (GIF++) at CERN. The details of the measurement setup and the results are presented here.
Untersuchungen zur spätglazialen und frühpostglazialen Vegetationsgeschichte Ostfrieslands (Mit einem Beitrag zur Gliederung des Präboreals)
Creators: name: Behre, Karl-Ernst
Publisher: name: Geozon Science Media
Year: 1966

description: An Hand eines eng analysierten Standard-Pollendiagramms von Westrhauderfehn (Ostfriesland) werden der Vegetationsablauf und die Klimaentwicklung vom Bölling-Interstadial bis zum Ende des Boreals dargelegt. Neben dem floristischen Bild wird be-sonderer^ Wert auf das Verhalten der Pinus-Kurve im Alleröd gelegt. Als Ergänzung hierfür wurde ein 2. Pollendiagramm bearbeitet und eine 14C-Datierung beigefügt. Das Alleröd ist in Ostfriesland klar zweigegliedert in eine kühlere Birkenphase und eine wärmere Birken-Kiefernphase mit nur einem Kiefernvorstoß. Die Kiefer hat die jüngere Tundrenzeit in der Nähe überdauert. Zur ersten Wiederbewaldung im Präboreal ergaben sich neue Aspekte. Am Beginn des Präboreals wurde eine kurzfristige Erwärmung mit Kiefernvorstoß erfaßt und nach Vergleich mit anderen Pollendiagrammen mit der Arbeitsbezeichnung „Friesland-Schwankung" versehen. Der darauffolgende leichte Kälterückschlag wird mit der alpinen Piottino-Schwankung (nach Zoller 1960) parallelisiert. Dadurch ergibt sich eine Gliederung des Präboreals wie folgt: c) endgültige Erwärmung b) Piottino- Schwankung (Stadial) a) Friesland- Schwankung (Interstadial). Die hydrographische und trophische Entwicklung eines spät- und frühpostglazialen Sees wird aufgezeigt, und durch die Verknüpfung seiner Sedimente mit den ausgedehnten Flugsanddecken dieses Gebietes werden letztere in die ältere und jüngere Tundrenzeit datiert.
description: research
Remote Casework: For Child Welfare Stakeholders in the Time of COVID-19 - Resources
Creators: name: IHeartTech
name: Sage, Melanie
name: Hitchcock, Laurel
Publisher: name: figshare
Year: 2020
Subjects: subject: 160799 Social Work not elsewhere classified
subject: FOS: Sociology
subject: 160701 Clinical Social Work Practice

description: This handout provides evidence-informed guidance for child welfare stakeholders about the use of technology for remote and virtual casework during COVID-19 - resources only.
These are evidence-informed best practices only. They may not meet standards for an individual agency; local, state and federal regulations; and licensing bodies. Always consult with with appropriate authorities and stay up-to-date on research and protocols related to the use of technology in child welfare.
Common dynamo scaling in slowly rotating young and evolved stars
Creators: name: Lehtinen, Jyri J.
name: Spada, Federico
name: Käpylä, Maarit J.
name: Olspert, Nigul
name: Käpylä, Petri J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: One interpretation of the activity and magnetism of late-type stars is that these both intensify with decreasing Rossby number up to a saturation level, suggesting that stellar dynamos depend on both rotation and convective turbulence. Some studies have claimed, however, that rotation alone suffices to parametrise this scaling adequately. Here, we tackle the question of the relevance of turbulence to stellar dynamos by including evolved, post main sequence stars in the analysis of the rotation-activity relation. These stars rotate very slowly compared with main sequence stars, but exhibit similar activity levels. We show that the two evolutionary stages fall together in the rotation-activity diagram and form a single sequence in the unsaturated regime in relation only to Rossby numbers derived from stellar models, confirming earlier preliminary results that relied on a more simplistic parametrisation of the convective turnover time. This mirrors recent results of fully convective M dwarfs, which likewise fall on the same rotation-activity sequence as partially convective solar-type stars. Our results demonstrate that turbulence plays a crucial role in driving stellar dynamos and suggest that there is a common turbulence-related dynamo mechanism explaining the magnetic activity of all late-type stars.
description: This is the initial submission version of the paper "Common dynamo scaling in slowly rotating young and evolved stars" (Lehtinen et al. 2020). The final version accepted in Nature Astronomy can be found at https://www.nature.com/articles/s41550-020-1039-x
Using the fractional interaction law to model the impact dynamics in arbitrary form of multiparticle collisions
Creators: name: Leszczynski, Jacek S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Using the molecular dynamics method, we examine a discrete deterministic model for the motion of spherical particles in three-dimensional space. The model takes into account multiparticle collisions in arbitrary forms. Using fractional calculus we proposed an expression for the repulsive force, which is the so called fractional interaction law. We then illustrate and discuss how to control (correlate) the energy dissipation and the collisional time for an individual article within multiparticle collisions. In the multiparticle collisions we included the friction mechanism needed for the transition from coupled torsion-sliding friction through rolling friction to static friction. Analysing simple simulations we found that in the strong repulsive state binary collisions dominate. However, within multiparticle collisions weak repulsion is observed to be much stronger. The presented numerical results can be used to realistically model the impact dynamics of an individual particle in a group of colliding particles.
description: 17 pages, 8 figures, 1 table; In review process of Physical Review E
title: Microvesicles in platelet concentrates for transfusion
Creators: name: Krailadsiri, Pranee
Publisher: name: The Open University
Year: 2000

description: The key objective of this study was to examine whether leucocyte depletion generated or removed platelet-derived microvesicles in platelet concentrates for transfusion. Three in-process leucocyte removal filters for pooled buffy coat derived platelet concentrates, i. e. negative charged polyester, positively charged polyester, and non-charged polyurethane, were compared. The effects of three major leucocyte depletion technologies currently in use in the UK, i. e. Cobe LRS and Haemonetics MCS+ LD apheresis, and filtration of pooled buffy coat derive platelets, on platelet microvesiculation were also examined. Furthermore, the effects of various leucocyte filters and leucocyte depletion technologies on platelet activation and the activation of coagulation/complement systems were investigated. The procoagulant and anticoagulant properties of microvesicles isolated from platelet concentrates were explored. Leucocyte filtration of pooled bully coat derived platelet concentrates by all three filters did not have a net effect on the level of microvesicles. All three leucocyte depletion technologies gave similar values of microvesicles on day 1, but on day 5 MCS+ LD apheresis showed the lowest value, whilst Cobe LRS apheresis and buffy coat methods were equivalent. Among the three filters, the negatively charged filter activated the coagulation system as measured by kallikrein-like and thrombin-like activities, but removed some activated complement C3a, whereas the positively charged filter generated C3a. Among the three leucocyte depletion technologies, platelets prepared by Cobe LRS showed the lowest degree of activation of the coagulation system. However, both Cobe LRS and MCS apheresis showed higher levels of C3a than filtered buffy coat derived platelets. The microvesicles isolated from day 1 platelet concentrates could act as a catalytic surface for both the coagulant and anticoagulant reactions as measured by the formation of prothrombinase complex and the inactivation of FVa by activated protein C. The microvesicles isolated from day 5 platelets showed an increased procoagulant activity, whereas the anticoagulant activity substantially diminished.
Neural combinatorial optimization beyond the TSP: Existing architectures under-represent graph structure
Creators: name: Boffa, Matteo
name: Houidi, Zied Ben
name: Krolikowski, Jonatan
name: Rossi, Dario
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Recent years have witnessed the promise that reinforcement learning, coupled with Graph Neural Network (GNN) architectures, could learn to solve hard combinatorial optimization problems: given raw input data and an evaluator to guide the process, the idea is to automatically learn a policy able to return feasible and high-quality outputs. Recent work have shown promising results but the latter were mainly evaluated on the travelling salesman problem (TSP) and similar abstract variants such as Split Delivery Vehicle Routing Problem (SDVRP). In this paper, we analyze how and whether recent neural architectures can be applied to graph problems of practical importance. We thus set out to systematically "transfer" these architectures to the Power and Channel Allocation Problem (PCAP), which has practical relevance for, e.g., radio resource allocation in wireless networks. Our experimental results suggest that existing architectures (i) are still incapable of capturing graph structural features and (ii) are not suitable for problems where the actions on the graph change the graph attributes. On a positive note, we show that augmenting the structural representation of problems with Distance Encoding is a promising step towards the still-ambitious goal of learning multi-purpose autonomous solvers.
description: 8 pages, 7 figures, accepted at AAAI'22 GCLR 2022 workshop on Graphs and more Complex structures for Learning and Reasoning
Evidence for a Waalian thermomer pollen record from the research borehole Heidelberg UniNord, Upper Rhine Graben, Baden-Württemberg
Creators: name: Hahne, Jürgen
name: Ellwanger, Dietrich
name: Stritzke, Rüdiger
Publisher: name: Geozon Science Media
Year: 2009

description: Eine Pollensukzession aus der Bohrung Heidelberg UniNord im Oberrheingraben kann mit der bisher selten nachgewiesenen Waal-Warmzeit verknüpft werden. Das wohl nicht vollständig erfasste Thermomer reflektiert eine angedeutete Sukzession, die von einer basalen Fichten-Kiefernzeit über einen Abschnitt mit Kiefer, Hemlocktanne und Fichte, hin zu einer abschliessenden Waldzeit verläuft, in der Hemlocktanne (Tsuga), Eiche und Hainbuche dominieren. Tsuga erreicht im Gesamtdiagramm Werte bis zu 20 % und repräsentiert ein wichtiges Waldelement. Ständig vorhanden sind in geringen Anteilen ferner Carya, Pterocarya, Celtis, Eucommia und Ostrya-Typ. In Nachbarbohrungen deutet sich dasselbe Muster an. Das Pollendiagramm wird korreliert mit den Waal-Profilen aus Leerdam und Eindhoven (Niederlande).
description: research
DensE: An Enhanced Non-commutative Representation for Knowledge Graph Embedding with Adaptive Semantic Hierarchy
Creators: name: Lu, Haonan
name: Hu, Hailin
name: Lin, Xiaodong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Capturing the composition patterns of relations is a vital task in knowledge graph completion. It also serves as a fundamental step towards multi-hop reasoning over learned knowledge. Previously, several rotation-based translational methods have been developed to model composite relations using the product of a series of complex-valued diagonal matrices. However, these methods tend to make several oversimplified assumptions on the composite relations, e.g., forcing them to be commutative, independent from entities and lacking semantic hierarchy. To systematically tackle these problems, we have developed a novel knowledge graph embedding method, named DensE, to provide an improved modeling scheme for the complex composition patterns of relations. In particular, our method decomposes each relation into an SO(3) group-based rotation operator and a scaling operator in the three dimensional (3-D) Euclidean space. This design principle leads to several advantages of our method: (1) For composite relations, the corresponding diagonal relation matrices can be non-commutative, reflecting a predominant scenario in real world applications; (2) Our model preserves the natural interaction between relational operations and entity embeddings; (3) The scaling operation provides the modeling power for the intrinsic semantic hierarchical structure of entities; (4) The enhanced expressiveness of DensE is achieved with high computational efficiency in terms of both parameter size and training time; and (5) Modeling entities in Euclidean space instead of quaternion space keeps the direct geometrical interpretations of relational patterns. Experimental results on multiple benchmark knowledge graphs show that DensE outperforms the current state-of-the-art models for missing link prediction, especially on composite relations.
description: Accepted by Neurocomputing
Kartographie als Klimaarchiv - Meereis im Norden, vom Eis verschlossene Schiffspassagen und verstoßende Gletscher - alte Karten dokumentieren die »Kleine Eiszeit«
Creators: name: Brunner, Kurt
Publisher: name: Geozon Science Media
Year: 2005

description: Im 15. Jh. weisen Tabulae modernae und Weltkarten lateinischer Ptolemäus-Ausgaben auf Meereis in Nordeuropa hin. Zu Beginn des 17. Jh. scheitert die Suche nach einer Nordwestpassage nach Asien. Das Mittelalterliche Klimaoptimum ist zu Ende gegangen und erst um 1850 - am Ende der „Kleinen Eiszeit“ - ist diese Passage befahrbar. Den Klimawandel in der Frühen Neuzeit belegen auch Jahreszeitenbilder seit dem Mittelalter und Augenscheinkarten ab 1500. Letztere dokumentieren mehrfach die Einstellung von Weinbau und das zum Teil katastrophale Vorrücken der Alpengletscher. Die Gletscherhochstände des 17. Jh. und jener am Ende des 18. Jh. sind umfangreich in Karten und Veduten festgehalten. Ab 1565 malt Pieter Brueghel Winterbilder und im gesamten 17. Jh. gestalten flämische und holländische Künstler Landschaften mit Schnee und Eis. Zu Beginn des 19. Jh. malt Caspar David Friedrich bemerkenswerte Bilder mit Eis. In der Mitte des 19. Jh. entstehen erste Gletscherkarten, sie halten dabei unbeabsichtigt den letzten Hochstand der Alpengletscher fest. Ab 1880 beginnen genaue Kartierungen, welche den Rückzug der Alpengletscher dokumentieren.
description: research
An Evaluation of a New System of Pigeon Pea Production in Trinidad and Tobago
Creators: name: Cropper, J.
name: Arzu, N.
name: Cropper, J.
name: Arzu, N.
Publisher: name: Unknown
Year: 1974
Subjects: Agricultural and Food Policy
Crop Production/Industries
International Relations/Trade

description: Trinidad and Tobago currently imports much of its grain legumes. Pigeon peas are the most commonly grown grain legume. Considerable work has gone into the development of dwarf deterainate cultivars of pigeon peas in the Regional Research Centre of the University of the West Indies. A new system of production has evolved based on high density plantings of these cultivars in December of January, so that they come to bearing within 110 days, and give high yields of green pods from a single harvesting. With a yield of 4000 lb/ac., a gross income of $680/ac could be achieved, but hand-harvesting costs could be high. Work is in progress on a mechanical harvester. This system of production should ensure increased supplies of fresh peas for processors, lead to intensified land use (since the crop occupies the land far less time than traditional pigeon pea crops), and could lead to savings in imports and export earnings.