cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Determination of the Bending Rigidity of Graphene via Electrostatic Actuation of Buckled Membranes
Creators: name: Lindahl, Niklas
name: Midtvedt, Daniel
name: Svensson, Johannes
name: Nerushev, Oleg A.
name: Lindvall, Niclas
name: Isacsson, Andreas
name: Campbell, Eleanor E. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The small mass and atomic-scale thickness of graphene membranes make them highly suitable for nanoelectromechanical devices such as e.g. mass sensors, high frequency resonators or memory elements. Although only atomically thick, many of the mechanical properties of graphene membranes can be described by classical continuum mechanics. An important parameter for predicting the performance and linearity of graphene nanoelectromechanical devices as well as for describing ripple formation and other properties such as electron scattering mechanisms, is the bending rigidity, κ. In spite of the importance of this parameter it has so far only been estimated indirectly for monolayer graphene from the phonon spectrum of graphite, estimated from AFM measurements or predicted from ab initio calculations or bond-order potential models. Here, we employ a new approach to the experimental determination of κ by exploiting the snap-through instability in pre-buckled graphene membranes. We demonstrate the reproducible fabrication of convex buckled graphene membranes by controlling the thermal stress during the fabrication procedure and show the abrupt switching from convex to concave geometry that occurs when electrostatic pressure is applied via an underlying gate electrode. The bending rigidity of bilayer graphene membranes under ambient conditions was determined to be $35.5^{+20}_{-15}$ eV. Monolayers have significantly lower κ than bilayers.
Root Growth of Hordeum vulgare and Vicia faba in the Biopore Sheath
Creators: name: Petzoldt, Lisa
name: Athmann, Miriam
name: Buechse, Andreas
name: Kautz, Timo
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: biopore sheath
subject: root architecture
subject: root diameter
subject: root distribution
subject: root length density
subject: subsoil
subject: 630 Landwirtschaft und verwandte Bereiche

description: Biopores provide nutrients from root debris and earthworm casts. Inside large biopores, root function is limited due to the lack of root–soil contact. However, the immediate surroundings of biopores may hold a key function as “hotspots” for root growth in the subsoil. To date, sufficient quantitative information on the distribution of roots and nutrients around biopores is missing. In this field study, the biopore sheath was sampled at distances of 0–2, 2–4, 4–8, and 8–12 mm from the surface of the pore wall. The results show a laterally decreasing gradient from the pore towards 8–12 mm distance in root length density (RLD) of spring barley (Hordeum vulgare L.) and faba bean (Vicia faba L.), as well as in total nitrogen (Nt)- and total carbon (Ct)-content. In the biopore sheath (2–12 mm), the share of roots with a diameter of less than 0.4 mm was 92% for barley and 89% for faba bean. The findings support the view that roots can utilize biopores to gain access to deeper soil layers and may use the sheath for nutrient uptake and entrance through to the bulk soil. However, especially for barley, the inner layer of the biopore sheath appeared to be more important for root growth than the sheath of farer distance
Designing Specialized Spaces in Libraries
Creators: name: Vaughan, Jim
Publisher: name: University of Chicago
Year: 2012

description: Jim Vaughan will discuss the renovation of the Special Collections Research Center’s public spaces, a project undertaken thanks to the economic and logistical benefits of synchronizing the renovation with the construction of the Joe and Rika Mansueto Library. The new, state-of-the-art Exhibition Gallery and renovated research and teaching spaces are located on the pathway between the Joseph Regenstein Library and the Joe and Rika Mansueto Library, thus creating greater visibility for the Special Collections Research Center. The new and renovated spaces provide flexible, technology-equipped facilities for the presentation, interpretation, and consultation of primary sources by individuals, groups, and classes.
Non-Extremal Black Holes of N=2,d=5 Supergravity
Creators: name: Meessen, P.
name: Ortin, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the generalization of the Ansatz of Galli et al. for non-extremal black holes of N=2,d=4 supergravities for a simple model of N=2,d=5 supergravity with a vector multiplet whose moduli space has two branches. We use the formalism of Ferrara, Gibbons and Kallosh, which we generalize to any dimension d. We find that the equations of motion of the model studied can be completely integrated without the use of our Anstaz (which is,nevertheless, recovered in the integration). The family of solutions found (common to both branches) is characterized by five independent parameters: the mass M, the electric charges q_{0},q_{1}, the asymptotic value of the scalar at infinity ϕ_{\infty} and the scalar charge Σ. The solutions have a singular horizon whenever Σdiffers from a specific expression Σ_{0}(M,q_{0},q_{1},phi_{\infty}) (i.e. when there is primary scalar hair Σ-Σ_{0}\neq 0). The family of regular black holes interpolates between its two extremal limits. The supersymmetry properties of the extremal solutions depend on the choice of branch: one is always supersymmetric and the other non-supersymmetric in one branch and the reverse in the other one.
description: LaTeX2e file, 12 pages
A Year or Two Later: The UW Libraries Research Commons
Creators: name: Ray, Lauren
Publisher: name: University of Washington
Year: 2012

description: Lauren Ray will describe what she’s learned in her experience overseeing the development of a new and experimental library space at the University of Washington. She’ll describe how the Research Commons has benefitted from the development of campus partnerships, and takeaways from the user assessments conducted in the first two years. She will also talk about expectations for the space prior to opening, as well as the challenges and opportunities that exist with an evolving space. She will share work done to link the Research Commons space itself to “library” content through the development of interdisciplinary events.
Transport efficiency in topologically disordered networks with environmentally induced diffusion
Creators: name: Schijven, Petrus
name: Kohlberger, Johannes
name: Blumen, Alexander
name: Muelken, Oliver
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study transport in topologically disordered networks that are subjected to an environment that induces classical diffusion. The dynamics is phenomenologically described within the framework of the recently introduced quantum stochastic walk, allowing to study the crossover between coherent transport and purely classical diffusion. We find that the coupling to the environment removes all effects of localization and quickly leads to classical transport. Furthermore, we find that on the level of the transport efficiency, the system can be well described by reducing it to a two-node network (a dimer).
description: 10 pages, 7 figures
Generalized Maass Wave Forms
Creators: name: Mühlenbruch, Tobias
name: Raji, Wissam
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F12

description: We initiate the study of generalized Maass wave forms, those Maass wave forms for which the multiplier system is not necessarily unitary. We then prove some basic theorems inherited from the classical theory of modular forms with a generalization of some examples from the classical theory of Maass forms.
description: Accepted for publication by the Proceedings of the American Mathematical Society
Session Type Inference in Haskell
Creators: name: Imai, Keigo
name: Yuen, Shoji
name: Agusa, Kiyoshi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.1.1; D.3.3

description: We present an inference system for a version of the Pi-calculus in Haskell for the session type proposed by Honda et al. The session type is very useful in checking if the communications are well-behaved. The full session type implementation in Haskell was first presented by Pucella and Tov, which is 'semi-automatic' in that the manual operations for the type representation was necessary. We give an automatic type inference for the session type by using a more abstract representation for the session type based on the 'de Bruijn levels'. We show an example of the session type inference for a simple SMTP client.
description: In Proceedings PLACES 2010, arXiv:1110.3853
Understanding the Effects of Physical Activity on the Cancer Patient Currently Undergoing Treatment with Immune Checkpoint Inhibitors A Scoping Review Protocol.pdf
Creators: name: Shaver, Amy
name: Sharma, Swapnil
name: Nikita, Nikita
name: Johnson, Jennifer
name: butryn, meghan
name: Lu-Yao, Grace
Publisher: name: figshare
Year: 2021
Subjects: subject: 111204 Cancer Therapy (excl. Chemotherapy and Radiation Therapy)
subject: FOS: Clinical medicine
subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: 110602 Exercise Physiology
subject: Health Care
subject: 110799 Immunology not elsewhere classified

description: Scoping review protocol
Die antiken Sonnenuhren Griechenlands. Kataloge – Analysen – Texte
Creators: name: Schaldach, Karlheinz
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Sonnenuhr
subject: Innovation
subject: Inschriften
subject: Antikes Griechenland
subject: Antikes Rom
subject: Messinstrument
subject: Katalog
subject: 930 Geschichte des Altertums bis ca. 499

description: Bei den Griechen und Römern war es üblich, die Stunden, die den Zeitraum von Sonnenaufgang bis Sonnenuntergang unterteilten, an Sonnenuhren abzulesen. Es waren Messinstrumente, die von griechischen Wissenschaftlern ersonnen wurden. Sie offenbaren eine intensive Auseinandersetzung mit astronomischen Phänomenen, während ihre Ausführung den ihnen beigemessenen Sinn und Wert widerspiegelt. Kein anderes wissenschaftliches Instrument der Antike hat sich so häufig erhalten. Ihre Anzahl spiegelt die Wertschätzung der Innovation in der damaligen Gesellschaft wider. Dieser Doppelband stellt nicht nur einzelne Funde griechischer Sonnenuhren in Wort und Bild vor, sondern will darüber hinaus durch die Einbeziehung antiker Texte und Inschriften sowie antiker Abbildungen aufzeigen, wie die Sonnenuhr in das kulturelle Leben des Altertums eingebunden war. Dem schließt sich eine Betrachtung der mathematischen und astronomischen Grundlagen des Messinstruments und seiner Genauigkeit an. Der vorliegende Band II enthält zentrales Bild und Katalogmaterial zu den antiken Sonnenuhren Griechenlands. Der Schwerpunkt der Studie liegt dabei auf den griechischen Uhren, doch werden römische Exemplare und Abbildungen sowie lateinische Texte und Inschriften insbesondere bei Fragen nach dem Wissenstransfer mit herangezogen.
Deletion and functional analysis of ac146 of the baculovirus Autographa californica nucleopolyhedrovirus
Creators: name: Dickison, Virginia L
Publisher: name: University of British Columbia
Year: 2010

description: Autographa californica Multiple Nucleopolyhedrovirus (AcMNPV) ac146 is a highly conserved gene in the alpha- and betabaculovirus genera that has an unknown function. To characterize ac146 Northern blot analysis and transcriptional mapping confirmed the prediction that ac146 is transcribed at late times post infection as a 1.2 Kb mRNA that is detected from 12 hpi through to 48 hpi. To determine the role of ac146 in the baculovirus life cycle, AcMNPV bacmids were used to generate a series of four increasingly larger ac146 deletion viruses (AcBACac146KO¹⁻⁴) by recombination in Escherichia coli. Transfection and plaque assays were completed to visualize the movement of ac146 deletion and repair viruses under fluorescence and light microscopy. The results showed that all the ac146 deletions produced a single cell phenotype indicating that no infectious budded virus (BV) was produced. Lack of BV production was confirmed by titrating the virus utilizing both qPCR and TCID₅₀. Within cells transfected by AcBACac146KO¹⁻⁴ the infection preceded to late times post-infection as evidenced by the development of apparently normal occlusion bodies (OB). AC146 was detected at 18 hpi through to 96 hpi and located in both nuclear and cytoplasmic fractions at 24 and 48 hpi. Purification of BV and occlusion derived virus (ODV) revealed that AC146 is associated with both forms of the virus. AC146 was located in the nucleocapsid fractionation of BV but not in the envelope fraction. Therefore in conclusion, this study has shown that ac146 is a late gene that is essential for the virus life cycle and is required for the production of BV.
Supergiant X-ray binaries observed by Suzaku
Creators: name: Bodaghee, A.
name: Tomsick, J. A.
name: Rodriguez, J.
name: Chaty, S.
name: Pottschmidt, K.
name: Walter, R.
name: Romano, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Suzaku observations are presented for the high-mass X-ray binaries IGR J16207-5129 and IGR J17391-3021 (=XTE J1739-302). For IGR J16207-5129, we provide the first X-ray broadband (0.5--60 keV) spectrum from which we confirm a large intrinsic column density (nH = 1.6e23 /cm2), and we constrain the cutoff energy for the first time (Ec = 19 keV). A prolonged (> 30 ks) attenuation of the X-ray flux was observed which we tentatively attribute to an eclipse of the probable neutron star by its massive companion, in a binary system with an orbital period between 4 and 9 days, and inclination angles > 50 degrees. For IGR J17391-3021, we witnessed a transition from quiescence to a low-activity phase punctuated by weak flares whose peak luminosities in the 0.5--10 keV band are only a factor of 5 times that of the pre-flare emission. These micro flares are accompanied by an increase in nH which suggests the accretion of obscuring clumps of wind. We now recognize that these low-activity epochs constitute the most common emission phase for this system, and perhaps in other supergiant fast X-ray transients (SFXTs) as well. We close with an overview of our upcoming program in which Suzaku will provide the first ever observation of an SFXT (IGR J16479-4514) during a binary orbit enabling us to probe the accretion wind at every phase.
description: 4 pages, 2 figures, 1 table, to appear in the proceedings of the conference "Suzaku 2011: Exploring the X-ray Universe: Suzaku and Beyond"
Joe and Rika Mansueto Library: A Year Later – Lessons Learned
Creators: name: Vaughan, Jim
Publisher: name: University of Chicago
Year: 2012

description: Jim Vaughan will describe the vision behind the Helmut Jahn-designed Joe and Rika Mansueto Library and then talk about what we have learned since the opening of the facility on May 16, 2011. In addition to the beauty and functionality of Mansueto, its genius lies in its enabling features. He will highlight much that Mansueto has made (and is making) possible throughout the Library system.
Singular electromagnetic fields in nonlinear electrodynamics with a constant background field
Creators: name: Adorno, T. C.
name: Gitman, D. M.
name: Shanad, A. E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: When exploring equations of nonlinear electrodynamics in effective medium formed by mutually parallel external electric and magnetic fields, we come to special static axial-symmetric solutions of two types. The first are comprised of fields referred to as electric and magnetic responses to a point-like electric charge when placed into the medium. In electric case, this is a field determined by the induced charge density. In magnetic case, this is a field carrying no magnetic charge and determined by an induced current. Fields of second type require presence of pseudoscalar constants for their existence. These are singular on the axis drawn along the external fields. In electric case this is a field of an inhomogeneously charged infinitely thin thread. In magnetic case this is the magnetic monopole with the Dirac string supported by solenoidal current. In both cases the necessary pseudoscalar constant is supplied by field derivatives of nonlinear Lagrangian taken on external fields. There is also a magnetic thread solution dual to electric thread with null total magnetic charge.
description: Published version
ENSO dynamics: low-dimensional-chaotic or stochastic?
Creators: name: Zivkovic, Tatjana
name: Rypdal, Kristoffer
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: We apply a test for low-dimensional, deterministic dynamics to the Nino 3 time series for the El Nino Southern Oscillation (ENSO). The test is negative, indicating that the dynamics is high-dimensional/stochastic. However, application of stochastic forcing to a time-delay equation for equatorial-wave dynamics can reproduce this stochastic dynamics and other important aspects of ENSO. Without such stochastic forcing this model yields low-dimensional, deterministic dynamics, hence these results emphasize the importance of the stochastic nature of the atmosphere-ocean interaction in low-dimensional models of ENSO.
Besetzte Bibliothek
Creators: name: Hölscher, Steffen
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: Buch- und Bibliothekswesen, Informationswissenschaft
subject: Bibliotheksgeschichte, Neuere Zeit, 16.-18. Jahrhundert
subject: Bibliotheksgeschichtliche Einzelfragen
subject: Siebenjähriger Krieg (1756-1763)
subject: Niedersächsische Staats- und Universitätsbibliothek Göttingen
subject: Georg-August-Universität Göttingen
subject: Bibliotheksverwaltung
subject: Gesner, Johann Mathias
subject: Michaelis, Johann David
subject: Matthiae, Georg
subject: 020 Bibliotheks- und Informationswissenschaften

description: Die Auswirkungen von Kriegs- und Besatzungssituationen auf frühneuzeitliche Bibliotheken werden aus bibliothekshistoriographischer Perspektive in der Regel hinsichtlich ihrer Bestandsgeschichte in den Blick genommen. Seltener werden in diesen Zusammenhang die Interaktion zwischen bibliotheksfremden Militärs und den jeweiligen Einrichtungen oder durch die Ausnahmesituation bedingte (bibliotheks-)organisatorische oder institutionelle Entwicklungsprozesse problematisiert. Mit der 1734 eröffneten Bibliothek der Göttinger Georg-August-Universität stellt die vorliegende Studie exemplarisch eine Einrichtung in den Mittelpunkt ihres Interesses, deren soziale und institutionelle Umwelten ebenso wie die Bibliothek selbst während des Siebenjährigen Krieges (1756–1763) mehrfach unter dem Eindruck von militärischer Besatzung und kriegsbedingter Gewalt standen. Mit Rückgriff auf handlungs- und raumtheoretische, kultur- und bibliothekswissenschaftliche Ansätze werden auf empirischer Grundlage von Selbstzeugnissen, Verwaltungsakten und Ausleihregistern Praktiken der Bibliotheksnutzung durch Angehörige der Besatzungstruppen ebenso wie Aspekte der Verwaltung, der institutionellen sowie der bibliothekarischen Entwicklung an der Göttinger Universitätsbibliothek in der Mitte des 18. Jahrhunderts diskutiert.
Extending the RP survey to the outer LMC
Creators: name: Reid, Warren A.
name: Parker, Quentin A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We are extending our search for faint PNe in the LMC to include the outer 56 deg2 area not covered in the original UKST survey of the central 25 deg2 region. Candidate PNe have been selected using the Magellanic Cloud Emission Line Survey (MCELS) and the first round of observations has yielded 93 new LMC PNe while confirming the 102 previously known PNe in the outer LMC. We plan to continue our spectroscopic object identification program until we cover all our remaining candidates in the survey area. These observations, providing medium and high resolution spectra from 3650 Ang to 6900 Ang will additionally be used to measure fluxes for a series of research projects including luminosity functions, abundances and LMC kinematics.
description: 2 pages, 1 figure, IAU283 poster contribution
Rate of convergence for discretization of integrals with respect to Fractional Brownian motion
Creators: name: Viitasaari, Lauri
name: Azmoodeh, Ehsan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G22, 60H05, 41A25

description: In this article, an uniform discretization of stochastic integrals $\int_{0}^{1} f'_-(B_t)\ud B_t$, with respect to fractional Brownian motion with Hurst parameter $H \in (1/2,1)$, for a large class of convex functions $f$ is considered. In Statistics & Decisions, 27, 129-143, for any convex function $f$, the almost sure convergence of uniform discretization to such stochastic integral is proved. Here we prove $L^r$- convergence of uniform discretization to stochastic integral. In addition, we obtain a rate of convergence. It turns out that the rate of convergence can be brought as closely as possible to $H - 1/2$.
description: 19 pages
Quasi-one-dimensional scattering in a discrete model
Creators: name: Valiente, Manuel
name: Molmer, Klaus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study quasi-one-dimensional scattering of one and two particles with short-range interactions on a discrete lattice model in two dimensions. One of the directions is tightly confined by an arbitrary trapping potential. We obtain the collisional properties of these systems both at finite and zero Bloch quasi- momenta, considering as well finite sizes and transversal traps that support a continuum of states. This is made straightforward by using the exact ansatz for the quasi-one-dimensional states from the beginning. In the more interesting case of genuine two-particle scattering, we find that more than one confinement-induced resonance appear due to the non-separability of the center-of-mass and relative coordinates on the lattice. This is done by solving its corresponding Lippmann- Schwinger-like equation. We characterize the effective one-dimensional interaction and compare it with a model that includes only the effect of the dominant, broadest resonance, which amounts to a single-pole approximation for the interaction coupling constant.
description: 8 pages, 6 figures
Heterogeneous freezing in a geometrically frustrated spin model without disorder: spontaneous generation of two time-scales
Creators: name: Cepas, O.
name: Canals, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By considering the constrained motion of classical spins in a geometrically frustrated magnet, we find a dynamical freezing temperature below which the system gets trapped in metastable states with a "frozen" moment and dynamical heterogeneities. The residual collective degrees of freedom are strongly correlated, and by spontaneously forming aggregates, they are unable to reorganize the system. The phase space is then fragmented in a macroscopic number of disconnected sectors (broken ergodicity), resulting in self-induced disorder and "thermodynamic" anomalies, measured by the loss of a finite configurational entropy. We discuss these results in the view of experimental results on the kagome compounds, SrCr(9p)Ga(12-9p)O19, (H30)Fe3(SO4)2(OH)6, Cu3V2O7(OH)2.2H2O and Cu3BaV2O8(OH)2.
description: 17 pages, 14 fig
Campylodiscus sonderianus Grunow
Creators: name: Williams, David M.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Bacillariophyceae
Surirellales
Surirellaceae
Campylodiscus
Campylodiscus sonderianus

description: ‘ Campylodiscus sonderianus ’ Grunow
 It is hard to track down the first use of the name ‘ C. sonderianus ’, a name that seems to have never been validly published. It may first have been used in connection with one of Möller’s slides (Möller 1868: 16, but with no locality details; later in the catalogues of Möller 1877: 13 as ‘ Campylodiscus Sonderianus Grun. n. sp. ’ [Figure 24], Möller 1883: 15, and Möller 1897: 15). One item in BM is a relevant Möller slide. The specimens are mounted within a frame that has the name of each taxon appended below the specimen. The portion with the label ‘ C. sonderianus ’ is broken, and the specimen has moved its position (BM 35870, ‘Typen-Platte | I.D. Möller’). It is possible that the specimen in Figure 23 is the one in question, just re-located to a different position on the slide. De Toni (1892:616) records it as ‘ C. Sonderianus Grun. mscr.’ in Habirshaw (1877: 58, as ‘ C - Sonderianus Grun.’). And yet another damaged slide, BM 22983, has no specimen of any Campylodiscus (which may have been lost or destroyed when this slide was damaged). ‘ C. sonderianus ’ does not appear in the later publication of Möller (1892), but Campylodiscus hardmanianus (Möller 1892: 20, ‘M. Mittelm.’ [= Mittelmeer. = Mediterranean Sea] and ‘M. St. Ocean’ [Southern Ocean]) and Campylodiscus daemelianus Grun. (Möller 1892: 128 [‘Nördlicher Stiller Ocean’], p. 141 [‘Südlicher Stiller Ocean’]) are both included. Specimens may be illustrated but remained unidentified in Möller (1891: tafs 50 and 52).
 One last slide to consider is BM 64450 from ‘Challenger Station 233’, a ‘T.E.Doeg’ slide (see http://www. microscopist.net/DoegTE.html) with three selected specimens (one is in illustrated in Figures 28-9; the lower label has ‘middle of Atlantic 8 ftms’, suggesting a later anonymous correction). This slide is labelled for Campylodiscus sonderianus ’. It is the same material that was used for BM 9007, which is the type slide for Campylodiscus challengerensis (Deby 1891: 69, ‘[…] station 233 […] Challenger […] T.E.Doeg’; also BM Adams GC 801).
description: Published as part of Williams, David M., 2023, Notes on the diatom collection of the Natural History Museum, London (BM) IX: Campylodiscus hardmanianus, with a discussion on synapomorphy and the poverty of molecular monophyly, pp. 53-64 in Phytotaxa 629 (1) on page 57, DOI: 10.11646/phytotaxa.629.1.4, http://zenodo.org/record/10254878
The `Higgs' Amplitude Mode at the Two-Dimensional Superfluid-Mott Insulator Transition
Creators: name: Endres, Manuel
name: Fukuhara, Takeshi
name: Pekker, David
name: Cheneau, Marc
name: Schauß, Peter
name: Gross, Christian
name: Demler, Eugene
name: Kuhr, Stefan
name: Bloch, Immanuel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spontaneous symmetry breaking plays a key role in our understanding of nature. In a relativistic field theory, a broken continuous symmetry leads to the emergence of two types of fundamental excitations: massless Nambu-Goldstone modes and a massive `Higgs' amplitude mode. An excitation of Higgs type is of crucial importance in the standard model of elementary particles and also appears as a fundamental collective mode in quantum many-body systems. Whether such a mode exists in low-dimensional systems as a resonance-like feature or becomes over-damped through coupling to Nambu-Goldstone modes has been a subject of theoretical debate. Here we reveal and study a Higgs mode in a two-dimensional neutral superfluid close to the transition to a Mott insulating phase. We unambiguously identify the mode by observing the expected softening of the onset of spectral response when approaching the quantum critical point. In this regime, our system is described by an effective relativistic field theory with a two-component quantum-field, constituting a minimal model for spontaneous breaking of a continuous symmetry. Additionally, all microscopic parameters of our system are known from first principles and the resolution of our measurement allows us to detect excited states of the many-body system at the level of individual quasiparticles. This allows for an in-depth study of Higgs excitations, which also addresses the consequences of reduced dimensionality and confinement of the system. Our work constitutes a first step in exploring emergent relativistic models with ultracold atomic gases.
Spin Density Wave in Insulating Ferromagnetic Frustrated Chain LiCuVO$_4$
Creators: name: Masuda, Takatsugu
name: Hagihala, Masato
name: Kondoh, Yosuke
name: Kaneko, Koji
name: Metoki, Naoto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study field induced quantum phase in weakly-coupled ferromagnetic frustrated chain LiCuVO$_4$ by neutron diffraction technique. A new incommensurate magnetic peak is observed at $H \ge 8.5$ T. The field dependent propagation vector is identified with the spin density wave correlation in the theoretically predicted magnetic quadrupole order. Quantum fluctuation, geometrical frustration, and interchain interaction induce the exotic spin density wave long-range order in the insulating magnet.
Controlling the degree of caution in statistical inference with the Bayesian and frequentist approaches as opposite extremes
Creators: name: Bickel, David R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62A99

description: In statistical practice, whether a Bayesian or frequentist approach is used in inference depends not only on the availability of prior information but also on the attitude taken toward partial prior information, with frequentists tending to be more cautious than Bayesians. The proposed framework defines that attitude in terms of a specified amount of caution, thereby enabling data analysis at the level of caution desired and on the basis of any prior information. The caution parameter represents the attitude toward partial prior information in much the same way as a loss function represents the attitude toward risk. When there is very little prior information and nonzero caution, the resulting inferences correspond to those of the candidate confidence intervals and p-values that are most similar to the credible intervals and hypothesis probabilities of the specified Bayesian posterior. On the other hand, in the presence of a known physical distribution of the parameter, inferences are based only on the corresponding physical posterior. In those extremes of either negligible prior information or complete prior information, inferences do not depend on the degree of caution. Partial prior information between those two extremes leads to intermediate inferences that are more frequentistic to the extent that the caution is high and more Bayesian to the extent that the caution is low.
A Modular Toolkit for Distributed Interactions
Creators: name: Lange, Julien
name: Tuosto, Emilio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We discuss the design, architecture, and implementation of a toolkit which supports some theories for distributed interactions. The main design principles of our architecture are flexibility and modularity. Our main goal is to provide an easily extensible workbench to encompass current algorithms and incorporate future developments of the theories. With the help of some examples, we illustrate the main features of our toolkit.
description: In Proceedings PLACES 2010, arXiv:1110.3853
Is subdiffusional transport slower than normal?
Creators: name: Goychuk, Igor
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider anomalous non-Markovian transport of Brownian particles in viscoelastic fluid-like media with very large but finite macroscopic viscosity under the influence of a constant force field F. The viscoelastic properties of the medium are characterized by a power-law viscoelastic memory kernel which ultra slow decays in time on the time scale τof strong viscoelastic correlations. The subdiffusive transport regime emerges transiently for t>τ. It is shown that even though transiently the mean displacement and the variance both scale sublinearly, i.e. anomalously slow, in time, ~ F t^α, ~ t^α, 0
Acceleration of string loops in the Schwarzschild-de Sitter geometry
Creators: name: Stuchlík, Z.
name: Kološ, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study acceleration of current-carrying string loops governed by the presence of an outer tension barrier and an inner angular momentum barrier in the field of Schwarzschild-de Sitter black holes. We restrict attention to the axisymmetric motion of string loops with energy high enough, when the string loop can overcome the gravitational attraction and escape to infinity. We demonstrate that string loops can be scattered near the black hole horizon, and the energy of string oscillations can be efficiently converted to the energy of their linear motion. Such a transmutation effect can potentially represent acceleration of jets in active galactic nuclei and microquasars. We give the conditions limiting energy available for conversion onto the jetlike motion. Surprisingly, we are able to show that string loops starting from rest can be accelerated up to velocities v\simc even in the field of Schwarzschild black holes, if their angular momentum parameter is low enough. Such loops could serve as an explanation of highly relativistic jets observed in some quasars and active galactic nuclei. The cosmic repulsion becomes important behind the so-called static radius where it accelerates the linear motion of the string loops up to velocity v=c that is reached at the cosmic horizon of the Schwarzschild-de Sitter spacetimes independently of the angular momentum parameter of the strings.
description: 12 pages, 7 figures
One-Year Mortality and Readmission Among Survivors of COVID-19 Critical Illness – A Population-Based Cohort Study
Creators: name: Fan, Eddy
name: Fowler, Robert
name: McIsaac, Daniel I
name: Scales, Damon
name: Munshi, Laveena
name: Brodie, Daniel
name: Slutsky, Arthur
name: Zharmaine Ante
name: Qureshi, Danial
name: Fernando, Shannon
name: Hodgson, Carol L
name: Tanuseputro, Peter
name: Needham, Dale M
name: Urner, Martin
name: Herridge, Margaret
name: Talarico, Robert
name: Rochwerg, Bram
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Pulmonology
subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Critical Care

description: Population-based cohort study evaluating 1-year outcomes of survivors of COVID-19 critical illness, in comparison to critically ill pneumonia survivors, hospitalized non-ICU COVID-19 survivors, and COVID-19 outpatients.
Effective Hamiltonian for the electronic properties of the quasi-one-dimensional material Li0.9Mo6O17
Creators: name: Merino, Jaime
name: McKenzie, Ross H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The title material has a quasi-one-dimensional electronic structure and is of considerable interest because it has a metallic phase with properties different from a simple Fermi liquid, a poorly understood "insulating" phase, and a superconducting phase which may involve spin triplet Cooper pairs. Using the Slater-Koster approach and comparison with published band structure calculations we present the simplest possible tight-binding model for the electronic band structure near the Fermi energy. This describes a set of ladders with weak (and frustrated) inter-ladder hopping. In the corresponding lattice model the system is actually close to one-quarter filling (i.e., one electron per pair of sites) rather than half-filling, as has often been claimed. We consider the simplest possible effective Hamiltonian that may capture the subtle competition between unconventional superconducting, charge ordered, and non-Fermi liquid metal phases. We argue that this is an extended Hubbard model with long-range Coulomb interactions. Estimates of the relevant values of the parameters in the Hamiltonian are given. NMR relaxation rate experiments should be performed to clarify the role of charge fluctuations in Li0.9Mo6O17 associated with the proximity to a Coulomb driven charge ordering transition.
description: 15 pages, 7 figures, submitted to PRB
Pseudonymous Signature Schemes
Creators: name: Blaskiewicz, Przemyslaw
name: Hanzlik, Lucjan
name: Kluczniak, Kamil
name: Krzywiecki, Lukasz
name: Kutylowski, Miroslaw
name: Slowik, Marcin
name: Wszola, Marta
Publisher: name: CISPA
Year: 2023

description: The chapter concerns cryptographic schemes enabling to sign digital data in a pseudonymized way. The schemes aim to provide a strong cryptographic evidence of integrity of the signed data and origin of the signature, but at the same time have to hide the identity of the signatory. There are two crucial properties that are specific for pseudonymous signatures: ability to recover the real identity of the signatory in certain circumstances and resilience to Sybil attacks. Despite using a single private key, the signatory can create a (single) unlinkable pseudonym for each domain or sector of activity and generate signatures corresponding to this pseudonym.
Giant Gravitons on AdS_4 x CP^3 and their Holographic Three-point Functions
Creators: name: Hirano, Shinji
name: Kristjansen, Charlotte
name: Young, Donovan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find a simple parametrization of the anti-symmetric giant graviton in AdS_4 x CP^3, first constructed in arXiv:1108.3084 [hep-th], dual to the anti-symmetric Schur polynomial involving two bi-fundamental complex scalar fields of ABJM theory. Using this parametrization we evaluate in a semi-classical approach the three-point function of two such giant gravitons and one point-like graviton considering both extremal and non-extremal configurations. We likewise discuss the case of the symmetric giant graviton in AdS_4 x CP^3. Finally, we provide an expression for the planar three-point function of chiral primary operators in ABJM at strong coupling and find that the results for the giant graviton three-point functions reduce to this expression in the point-like limit.
description: 1+16 pages. v2 added a reference
Omnibus Modelling to Describe the Effects of Thermisation on Staphylococcus aureus in Goat's Raw Milk
Creators: name: Silva, B.N.
name: Coelho-Fernandes, S.
name: Teixeira, J.A.
name: Cadavez, V.
name: Gonzales-Barron, U.
Publisher: name: Zenodo
Year: 2023

description: Presented as Oral Presentation; and in Book of Abstracts of the International Seminar ArtiSaneFood - Biopreservation and Risk Modelling Approaches. Bragança, Portugal (24-25 May 2023) (Page 70).
Phylogenetic Analysis of Lactic Acid Bacteria species from Cheese: a Comparison between Taxonomy and Physicochemical Characteristics
Creators: name: Carvalho, L.
name: Fernandes, N.
name: Silva, B.N.
name: Cadavez, V.
name: Gonzales-Barron, U.
Publisher: name: Zenodo
Year: 2023

description: Presented as Oral Presentation; and in Book of Abstracts of the International Seminar ArtiSaneFood - Biopreservation and Risk Modelling Approaches. Bragança, Portugal (24-25 May 2023) (Page 61).
Toric topology
Creators: name: Masuda, Mikiya
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57R19, 57R20, 57S25, 14M25

description: We survey some results on toric topology.
description: English translation of the Japanese article which appeared in "Sugaku" vol. 62 (2010), 386-411
Coherent thermal conductance in multilayer photonic crystals
Creators: name: Tschikin, Maria
name: Ben-Abdallah, Philippe
name: Biehs, Svend-Age
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an exact calculation of the coherent thermal conductance in a 1-D multilayer photonic crystals (PC) using the S-matrix method. In particular, we study the thermal conductance in a bilayer structure of slabs of Si/vacuum or Al$_2$O$_3$/vacuum by means of the exact expression for the radiative heat flux. We compare our results with results obtained in previous works. Our results show that the coupling of surface modes as well as material losses play a fundamental role in the definition of the thermal conductance of PCs.
Witnessing the Formation of Giant Planets: The first discovery of a circumplanetary disk in ALMA molecular line observations
Creators: name: Bae, Jaehan
Publisher: name: Zenodo
Year: 2023

description: Young stars harbor a disk of gas and dust orbiting them. Similarly, young planets are surrounded by a circumplanetary disk (CPD). CPDs supply gas and dust to the growing planet, and they are also the birthplace of moons. If we are to understand how forming planets accrete materials, what chemical compositions accreting gas has, and how and under which environments moons form, it is crucial to study CPDs. Despite the importance, observing CPDs has been very challenging due mainly to their small sizes – for a Jupiter-mass planet orbiting a solar-mass star at 100 au as an example, the diameter of the CPD is about 5 AUs, corresponding to 0.03 arcsec at the distance of nearby star-forming regions (~140 pc). Thanks to the angular resolution and sensitivity it offers, ALMA has been rapidly changing the situation and providing exciting opportunities to directly detect and characterize CPDs. In this talk, I will present the first discovery of a CPD in molecular line observations, around a young, forming exoplanet AS 209b. These observations provide solely needed observational constraints on the thermo-physical properties of CPD for the first time. I will conclude by discussing the potential formation mechanism of AS 209b in the framework of two main channels of giant planet formation, namely gravitational instability and core accretion.
Trapped fermions in a synthetic non-Abelian gauge field
Creators: name: Ghosh, Sudeep Kumar
name: Vyasanakere, Jayantha P.
name: Shenoy, Vijay B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: On increasing the coupling strength ($λ$) of a non-Abelian gauge field that induces a generalized Rashba spin-orbit interaction, the topology of the Fermi surface of a homogeneous gas of noninteracting fermions of density $ρ\sim \kf^3$ undergoes a change at a critical value, $λ_T \approx \kf$ [Phys. Rev. B {\bf 84}, 014512 (2011)]. In this paper we analyze how this phenomenon affects the size and shape of a cloud of spin-$\half$ fermions trapped in a harmonic potential such as those used in cold atom experiments. We develop an adiabatic formulation, including the concomitant Pancharatnam-Berry phase effects, for the one particle states in the presence of a trapping potential and the gauge field, obtaining approximate analytical formulae for the energy levels for some high symmetry gauge field configurations of interest. An analysis based on the local density approximation reveals that, for a given number of particles, the cloud shrinks in a {\em characteristic fashion with increasing $λ$}. For an isotropic harmonic trap, the local density approximation predicts a spherical cloud for all gauge field configurations, which are anisotropic in general. We show, via a calculation of the cloud shape using exact eigenstates, that for certain gauge field configurations there is systematic and observable anisotropy in the cloud shape that increases with increasing gauge coupling $λ$. These results should be useful in the design of cold atom experiments with fermions in non-Abelian gauge fields. An important spin-off of our adiabatic formulation is that it reveals exciting possibilities for the cold-atom realization of interesting condensed matter Hamiltonians (eg. quantum hall spherical geometry) by using a non-Abelian gauge field in conjunction with another potential.
description: 10 Pages, 4 figures
Modified Semi-Classical Methods for Nonlinear Quantum Oscillations Problems
Creators: name: Moncrief, Vincent
name: Marini, Antonella
name: Maitra, Rachel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35xx

description: We develop a modified semi-classical approach to the approximate solution of Schrodinger's equation for certain nonlinear quantum oscillations problems. At lowest order, the Hamilton-Jacobi equation of the conventional semi-classical formalism is replaced by an inverted-potential-vanishing-energy variant thereof. Under smoothness, convexity and coercivity hypotheses on its potential energy function, we prove, using the calculus of variations together with the Banach space implicit function theorem, the existence of a global, smooth `fundamental solution'. Higher order quantum corrections, for ground and excited states, are computed through the integration of associated systems of linear transport equations, and formal expansions for the corresponding energy eigenvalues obtained by imposing smoothness on the quantum corrections to the eigenfunctions. For linear oscillators our expansions naturally truncate, reproducing the well-known solutions for the energy eigenfunctions and eigenvalues. As an application, we calculate a number of terms in the corresponding expansions for the one-dimensional anharmonic oscillators of quartic, sectic, octic, and dectic types and find that our eigenvalue expansions agree with those of Rayleigh/Schrodinger theory, whereas our wave functions more accurately capture the more-rapid-than-gaussian decay. For the quartic oscillator our results strongly suggest that the ground state energy eigenvalue expansion and its associated wave function expansion are Borel summable to yield natural candidates for the actual exact ground state solution and its energy. Our techniques for proving the existence of the crucial `fundamental solution' to the relevant Hamilton Jacobi equation admit infinite dimensional generalizations. In a parallel project we shall show how this construction can be carried out for the Yang-Mills equations in Minkowski spacetime.