cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum Criticality and Inhomogeneous Magnetic Order in Fe-doped alpha-YbAlB4
Creators: name: MacLaughlin, D. E.
name: Kuga, K.
name: Shu, Lei
name: Bernal, O. O.
name: Ho, P. -C.
name: Nakatsuji, S.
name: Huang, K.
name: Ding, Z. F.
name: Tan, C.
name: Zhang, Jian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The intermediate-valent polymorphs $α$- and $β$-YbAlB$_4$ exhibit quantum criticality and other novel properties not usually associated with intermediate valence. Iron doping induces quantum criticality in $α$-YbAlB$_4$ and magnetic order in both compounds. We report results of muon spin relaxation ($μ$SR) experiments in the intermediate-valent alloys $α$-YbAl$_{1-x}$Fe$_x$B$_4$, $x = 0.014$ and 0.25. For $x = 0.014$ we find no evidence for magnetic order down to 25 mK\@. The dynamic muon spin relaxation rate $λ_d$ exhibits a power-law temperature dependence $λ_d \propto T^{-a}$, $a = 0.40(4)$, in the temperature range 100 mK--2 K, in disagreement with predictions by theories of antiferromagnetic (AFM) or valence quantum critical behavior. For $x = 0.25$, where AFM order develops in the temperature range 7.5--10 K, where we find coexistence of meso- or macroscopically segregated paramagnetic and AFM phases, with considerable disorder in the latter down to 2 K.
description: 9 pages, 10 figures, to be published in Phys. Rev. B
Alstroemeria pelegrina Linnaeus 1762
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Liliales
Alstroemeriaceae
Alstroemeria
Alstroemeria pelegrina

description: Alstroemeria pelegrina Linnaeus, Planta Alstromeria: 10. 1762. "Habitat in Peru." RCN: 2522. Lectotype (Bayer in Mitt. Bot. Staatssamml. München 24: 258. 1987): Herb. Linn. No. 444.1 (LINN). Generitype of Alstroemeria Linnaeus (vide Bullock in Kew Bull. 14: 40. 1960). Current name:  Alstroemeria pelegrina L. (Liliaceae / Alstroemeriaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 281, DOI: 10.5281/zenodo.291971
A guide to GRIB
Creators: name: Stackpole, JD
Publisher: name: Zenodo
Year: 1994
Subjects: data and information

description: A guide to GRIB
description: Previously curated at: http://cedadocs.ceda.ac.uk/1219/ The publish date on this item was its original published date. Main files in this record: A_Guide_to_GRIB.txt Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Power vs. Spectrum 2-D Sensing in Energy Harvesting Cognitive Radio Networks
Creators: name: Zhang, Yanyan
name: Han, Weijia
name: Li, Di
name: Zhang, Ping
name: Cui, Shuguang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Energy harvester based cognitive radio is a promising solution to address the shortage of both spectrum and energy. Since the spectrum access and power consumption patterns are interdependent, and the power value harvested from certain environmental sources are spatially correlated, the new power dimension could provide additional information to enhance the spectrum sensing accuracy. In this paper, the Markovian behavior of the primary users is considered, based on which we adopt a hidden input Markov model to specify the primary vs. secondary dynamics in the system. Accordingly, we propose a 2-D spectrum and power (harvested) sensing scheme to improve the primary user detection performance, which is also capable of estimating the primary transmit power level. Theoretical and simulated results demonstrate the effectiveness of the proposed scheme, in term of the performance gain achieved by considering the new power dimension. To the best of our knowledge, this is the first work to jointly consider the spectrum and power dimensions for the cognitive primary user detection problem.
Additional file 1 of Ligation of left gastric vein may cause delayed gastric emptying after pancreatoduodenectomy: a retrospective study
Creators: name: Kimura, Koichi
name: Minagawa, Ryosuke
name: Izumi, Takuma
name: Otake, Akihiko
name: Aoyagi, Takehiko
name: Taniguchi, Daisuke
name: Yano, Hiroko
name: Kajiwara, Yuichiro
name: Minami, Kazuhito
name: Nishizaki, Takashi
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1. Patient characteristics.
Spectrally resolved white light interferometer for measuring dispersion in the visible and near infrared range
Creators: name: Arosa, Y.
name: Lago, E. Lopez
name: de la Fuente, R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We design a spectrally resolved interferometer to measure the refractive index of transparent samples over a broad spectral range between 400 and 550 nm. The measuring device consists of a Michelson interferometer whose output is analysed by means of three fibre spectrometers: a homemade prism spectrometer which obtains the interferogram generated by the sample between 400 and 1050 nm, a homemade transmission grating spectrometer that measures the interferogram in between 950 and 1550 nm, and a commercial Czerny Turner spectrometer used to make high precision measurements of the displacement between the Michelson mirrors. The whole system is illuminated by a white light source with an emission spectrum similar to that of a black body. We test the instrument on solid and liquid samples achieving accuracy of up to 0.0001 in the refractive index after fitting it with the Cauchy formula.
description: 18 pages, 11 figures, 3 tables
Rank-Two Beamforming and Power Allocation in Multicasting Relay Networks
Creators: name: Schad, Adrian
name: Law, Ka L.
name: Pesavento, Marius
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we propose a novel single-group multicasting relay beamforming scheme. We assume a source that transmits common messages via multiple amplify-and-forward relays to multiple destinations. To increase the number of degrees of freedom in the beamforming design, the relays process two received signals jointly and transmit the Alamouti space-time block code over two different beams. Furthermore, in contrast to the existing relay multicasting scheme of the literature, we take into account the direct links from the source to the destinations. We aim to maximize the lowest received quality-of-service by choosing the proper relay weights and the ideal distribution of the power resources in the network. To solve the corresponding optimization problem, we propose an iterative algorithm which solves sequences of convex approximations of the original non-convex optimization problem. Simulation results demonstrate significant performance improvements of the proposed methods as compared with the existing relay multicasting scheme of the literature and an algorithm based on the popular semidefinite relaxation technique.
MHD Equilibria and Triggers for Prominence Eruption
Creators: name: Fan, Yuhong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magneto-hydrodynamic (MHD) simulations of the emergence of twisted magnetic flux tubes from the solar interior into the corona are discussed to illustrate how twisted and sheared coronal magnetic structures (with free magnetic energy), capable of driving filament eruptions, can form in the corona in emerging active regions. Several basic mechanisms that can disrupt the quasi-equilibrium coronal structures and trigger the release of the stored free magnetic energy are discussed. These include both ideal processes such as the onset of the helical kink instability and the torus instability of a twisted coronal flux rope structure and the non-ideal process of the onset of fast magnetic reconnections in current sheets. Representative MHD simulations of the non-linear evolution involving these mechanisms are presented.
description: 26 pages, 10 figures, Chapter 12 of Solar Prominences, Astrophysics and Space Science Library, Volume 415. ISBN 978-3-319-10415-7. Springer International Publishing Switzerland, 2015, p. 297
Label-free identification of individual bacteria using Fourier transform light scattering
Creators: name: Jo, YoungJu
name: Jung, JaeHwang
name: Kim, Min-hyeok
name: Park, HyunJoo
name: Kang, Suk-Jo
name: Park, YongKeun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Rapid identification of bacterial species is crucial in medicine and food hygiene. In order to achieve rapid and label-free identification of bacterial species at the single bacterium level, we propose and experimentally demonstrate an optical method based on Fourier transform light scattering (FTLS) measurements and statistical classification. For individual rod-shaped bacteria belonging to four bacterial species (Listeria monocytogenes, Escherichia coli, Lactobacillus casei, and Bacillus subtilis), two-dimensional angle-resolved light scattering maps are precisely measured using FTLS technique. The scattering maps are then systematically analyzed, employing statistical classification in order to extract the unique fingerprint patterns for each species, so that a new unidentified bacterium can be identified by a single light scattering measurement. The single-bacterial and label-free nature of our method suggests wide applicability for rapid point-of-care bacterial diagnosis.
Sharing delay costs in stochastic scheduling problems with delays
Creators: name: Gonçalves-Dosantos, J. C.
name: García-Jurado, I.
name: Costa, J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: An important problem in project management is determining ways to distribute amongst activities the costs that are incurred when a project is delayed because some activities end later than expected. In this study, we address this problem in stochastic projects, where the durations of activities are unknown but their corresponding probability distributions are known. We propose and characterise an allocation rule based on the Shapley value, illustrate its behaviour by using examples, and analyse features of its calculation for large problems.
Broadband Quantum Efficiency Enhancement in High Index Nanowires Resonators
Creators: name: Yang, Yiming
name: Peng, Xingyue
name: Hyatt, Steven
name: Yu, Dong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Light trapping in sub-wavelength semiconductor nanowires (NWs) offers a promising approach to simultaneously reducing material consumption and enhancing photovoltaic performance. Nevertheless, the absorption efficiency of a NW, defined by the ratio of optical absorption cross section to the NW diameter, lingers around 1 in existing NW photonic devices, and the absorption enhancement suffers from a narrow spectral width. Here, we show that the absorption efficiency can be significantly improved in NWs with higher refractive indices, by an experimental observation of up to 350% external quantum efficiency (EQE) in lead sulfide (PbS) NW resonators, a 3-fold increase compared to Si NWs. Furthermore, broadband absorption enhancement is achieved in single tapered NWs, where light of various wavelengths is absorbed at segments with different diameters analogous to a tandem solar cell. Overall, the single NW Schottky junction solar cells benefit from optical resonance, near bandgap open circuit voltage, and long minority carrier diffusion length, demonstrating power conversion efficiency (PCE) comparable to single Si NW coaxial p-n junction cells11, but with much simpler fabrication processes.
Bomarea salsilla Mirb.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Liliales
Alstroemeriaceae
Bomarea
Bomarea salsilla

description: Alstroemeria salsilla Linnaeus, Planta Alstromeria: 10. 1762. "Habitat in Chili in declivitate montis cujusdam." RCN: 2524. Lectotype (designated here by Hofreiter): [icon] " Hemerocallis scandens floribus purpureis, vulgo salsilla" in Feuillée, J. Obs. 2: 713, t. 6. 1714. - Epitype (designated here by Hofreiter): Chile. Concepcion, Küstenkordillere zwischen Santa Juana und Coronel, 21 Dec 1968, Merxmüller s.n. (M). Current name:  Bomarea salsilla (L.) Mirb. (Liliaceae / Alstroemeriaceae). Note: Hofreiter (in Feddes Repert. 117: 391, f. 1A. 2006) treated a plate cited from Feuilleé as the type, and designated a Merxmüller collection (M) from Chile as an epitype. However, this lectotype choice was published after 1 Jan 2001 and so the omission of the phrase "designated here" or an equivalent (Art. 7.11) means that the choice is not effective. However, this lectotype choice, and that of the dependent epitype, is formalised here.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 281, DOI: 10.5281/zenodo.291971
MPEC 2023-F133 : 2023 FU3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FU3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Spilling of electronic states in Pb Quantum Wells
Creators: name: Jalochowski, M.
name: Palotas, K.
name: Krawiec, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Energy-dependent apparent step heights of two-dimensional ultra-thin Pb islands grown on the Si(111)6$\times$6Au surface have been investigated by a combination of scanning tunneling microscopy, first-principles density functional theory and the particle in a box model calculations. The apparent step height shows the thickness and energy dependent oscillatory behavior, which is directly related to the spilling of electron states into the vacuum exhibiting a quantum size effect. This has been unambiguously proven by extensive first-principles scanning tunneling microscopy and spectroscopy simulations. An electronic contribution to the apparent step height is directly determined. At certain energies it reaches values as high as a half of the atomic contribution. The applicability of the particle in a box model to the spilling of electron states is also discussed.
description: 7 pages, 5 figures
Statistical Model of the Early Stage of nucleus-nucleus collisions with exact strangeness conservation
Creators: name: Poberezhnyuk, R. V.
name: Gazdzicki, M.
name: Gorenstein, M. I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Statistical Model of the Early Stage, SMES, describes a transition between confined and deconfined phases of strongly interacting matter created in nucleus-nucleus collisions. The model was formulated in the late 1990s for central Pb+Pb collisions at the CERN SPS energies. It predicted several signals of the transition (onset of deconfinement) which were later observed by the NA49 experiment. The grand canonical ensemble was used to calculate entropy and strangeness production. This approximation is valid for reactions with mean multiplicities of particles carrying conserved charges being significantly larger than one. Recent results of NA61/SHINE on hadron production in inelastic p+p interactions suggest that the deconfinement may also take place in these reactions. However, in this case mean multiplicity of particles with non-zero strange charge is smaller than one. Thus for the modeling of p+p interactions the exact strangeness conservation has to be implemented in the SMES. This extension of the SMES is presented in the paper.
description: 13 pages, revised version with new plots
Althaea cannabina Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Althaea
Althaea cannabina

description: Althaea cannabina Linnaeus, Species Plantarum 2: 686. 1753. "Habitat in Hungaria, Italia, G. Narbonensi." RCN: 5032. Lectotype (Riedl in Rechinger, Fl. Iranica 120: 38. 1976): Herb. Linn. No. 868.2 (LINN). Current name:  Althaea cannabina L. (Malvaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 281, DOI: 10.5281/zenodo.291971
Changes to the operational forecasting system - ECMWF-OP
Creators: name: Unknown
Publisher: name: Zenodo
Year: 9999
Subjects: data and information

description: Changes to the operational forecasting system.The ECMWF Newsletter includes a summary of model changes over the period of the publications. Document that summaries from the issues we have. Relates to the ECMWF-OP dataset available from CEDA.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1220/ The publish date on this item was its original completed date. Main files in this record: model_changes.txt Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Are Face and Object Recognition Independent? A Neurocomputational Modeling Exploration
Creators: name: Wang, Panqu
name: Gauthier, Isabel
name: Cottrell, Garrison
Publisher: name: arXiv
Year: 2016
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Are face and object recognition abilities independent? Although it is commonly believed that they are, Gauthier et al.(2014) recently showed that these abilities become more correlated as experience with nonface categories increases. They argued that there is a single underlying visual ability, v, that is expressed in performance with both face and nonface categories as experience grows. Using the Cambridge Face Memory Test and the Vanderbilt Expertise Test, they showed that the shared variance between Cambridge Face Memory Test and Vanderbilt Expertise Test performance increases monotonically as experience increases. Here, we address why a shared resource across different visual domains does not lead to competition and to an inverse correlation in abilities? We explain this conundrum using our neurocomputational model of face and object processing (The Model, TM). Our results show that, as in the behavioral data, the correlation between subordinate level face and object recognition accuracy increases as experience grows. We suggest that different domains do not compete for resources because the relevant features are shared between faces and objects. The essential power of experience is to generate a "spreading transform" for faces that generalizes to objects that must be individuated. Interestingly, when the task of the network is basic level categorization, no increase in the correlation between domains is observed. Hence, our model predicts that it is the type of experience that matters and that the source of the correlation is in the fusiform face area, rather than in cortical areas that subserve basic level categorization. This result is consistent with our previous modeling elucidating why the FFA is recruited for novel domains of expertise (Tong et al., 2008).
Carrier field shock formation of long wavelength femtosecond pulses in dispersive media
Creators: name: Panagiotopoulos, Paris
name: Whalen, Patrick
name: Kolesik, Miroslav
name: Moloney, Jerome V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We numerically demonstrate the formation of carrier field shocks in various dispersive media for a wide variety of input conditions using two different electric field propagation models. In addition, an investigation of the impact of numerous physical effects on carrier wave shock is performed. It is shown that in many cases a field shock is essentially unavoidable and therefore extremely important in the propagation of intense long wavelength pulses in weakly dispersive nonlinear media such as noble gases, air, and single-crystal diamond. The results presented here are expected to have a significant impact in the field of ultrashort nonlinear optics, attosecond pulse generation, and wavepacket synthesis where the use of mid-IR wavelengths is becoming increasingly more important.
description: 14 pages, 17 figures
Partial Convergence of Heterogeneous Hegselmann-Krause Opinion Dynamics
Creators: name: Su, Wei
name: Yu, Yongguang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In opinion dynamics, the convergence of the heterogeneous Hegselmann-Krause (HK) dynamics has always been an open problem for years which looks forward to any essential progress. In this short note, we prove a partial convergence conclusion of the general heterogeneous HK dynamis. That is, there must be some agents who will reach static states in finite time, while the other opinions have to evolve between them with a minimum distance if all the opinions does not reach consensus. And this result leads to the convergence of two special case of heterogeneous HK dynamics: the minimum confidence threshold is large enough, or the initial opinion difference is small enough.
description: 6pages,no figure
New results on egalitarian values for games with a priori unions
Creators: name: Gonçalves-Dosantos, J. C.
name: Alonso-Meijide, J. M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: Several extensions of the equal division value and the equal surplus division value to the family of games with a priori unions are proposed in Alonso-Meijide et al. (2020) ``On egalitarian values for cooperative games with a priori unions.'' TOP 28: 672-688. In this paper we provide new axiomatic characterizations of these values. Furthermore, using the equal surplus division value in two steps, we propose a new coalitional value. The balanced contributions and quotient game properties give rise to a different modification of the equal surplus division value.
Althaea hirsuta Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Althaea
Althaea hirsuta

description: Althaea hirsuta Linnaeus, Species Plantarum 2: 687. 1753. "Habitat in Gallia, Italia, Hispania." RCN: 5033. Lectotype (Riedl in Rechinger, Fl. Iranica 120: 37. 1976): Herb. Linn. No. 868.3 (LINN). Current name:  Althaea hirsuta L. (Malvaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 281, DOI: 10.5281/zenodo.291971
On the existence of an upper critical dimension for systems within the KPZ universality class
Creators: name: Rodrigues, Evandro A.
name: Oliveira, Fernando A.
name: Mello, Bernardo A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this work we extend the etching model to $d+1$ dimensions. This permits us to investigate its exponents behaviour on higher dimensions, to try to verify the existence of an upper critical dimension for the KPZ equations, with our results sugesting that $d=4$ is not an upper critical dimension for the etching model.
Althaea ludwigii Linnaeus 1767
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Althaea
Althaea ludwigii

description: Althaea ludwigii Linnaeus, Systema Naturae, ed. 12, 2: 459; Mantissa Plantarum: 98. 1767. "Habitat in Sicilia. D. Schreber." RCN: 5034. Lectotype (Riedl in Rechinger, Fl. Iranica 120: 38. 1976): Schreber?, Herb. Linn. No. 868.4 (LINN). Current name:  Althaea ludwigii L. (Malvaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 281, DOI: 10.5281/zenodo.291971
Information Geometry Formalism for the Spatially Homogeneous Boltzmann Equation
Creators: name: Lods, Bertrand
name: Pistone, Giovanni
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Information Geometry generalizes to infinite dimension by modeling the tangent space of the relevant manifold of probability densities with exponential Orlicz spaces. We review here several properties of the exponential manifold on a suitable set $\mathcal E$ of mutually absolutely continuous densities. We study in particular the fine properties of the Kullback-Liebler divergence in this context. We also show that this setting is well-suited for the study of the spatially homogeneous Boltzmann equation if $\mathcal E$ is a set of positive densities with finite relative entropy with respect to the Maxwell density. More precisely, we analyse the Boltzmann operator in the geometric setting from the point of its Maxwell's weak form as a composition of elementary operations in the exponential manifold, namely tensor product, conditioning, marginalization and we prove in a geometric way the basic facts i.e., the H-theorem. We also illustrate the robustness of our method by discussing, besides the Kullback-Leibler divergence, also the property of Hyvärinen divergence. This requires to generalise our approach to Orlicz-Sobolev spaces to include derivatives.%
description: 39 pages, 1 figure. Expanded version of a paper presente at the conference SigmaPhi 2014 Rhodes GR. Under revision for Entropy
Orbital Feshbach Resonance with Small Energy Gap between Open and Closed Channels
Creators: name: Cheng, Yanting
name: Zhang, Ren
name: Zhang, Peng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently a new type of Feshbach resonance, i.e., orbital Feshbach resonance (OFR) was proposed for the ultracold alkali-earth (like) atoms, and experimentally observed in the ultracold gases of $^{\rm 173}$Yb atoms. Unlike most of the magnetic Feshbach resonances of ultracold alkali atoms, when the OFR of $^{\rm 173}$Yb atoms appears, the energy gap between the thresholds of the open channel (OC) and the closed channel (CC) is much smaller than the characteristic energy of the inter-atomic interaction, i.e., the van der Waals energy. In this paper we study the OFR in the systems with small CC-OC threshold gap. We show that in these systems the OFR can be induced by the coupling between the OC and either an isolated bound state of the CC or the scattering states of the CC. Moreover, we also show that in each case the two-channel Huang-Yang pesudopoential is always applicable for the approximate calculation of the low-energy scattering amplitude. Our results imply that in the theoretical calculations for these systems it is appropriate to take into account the contributions from the scattering states of the CC.
Stellar Activity and Coronal Heating: an overview of recent results
Creators: name: Testa, Paola
name: Saar, Steve
name: Drake, Jeremy
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Observations of the coronae of the Sun and of solar-like stars provide complementary information to advance our understanding of stellar magnetic activity, and of the processes leading to the heating of their outer atmospheres. While solar observations allow us to study the corona at high spatial and temporal resolution, the study of stellar coronae allows us to probe stellar activity over a wide range of ages and stellar parameters. Stellar studies therefore provide us with additional tools for understanding coronal heating processes, as well as the long-term evolution of solar X-ray activity. We discuss how recent studies of stellar magnetic fields and coronae contribute to our understanding of the phenomenon of activity and coronal heating in late-type stars.
description: Accepted for publication on Philosophical Transactions A. 29 pages, 5 figures
In situ GaN decomposition analysis by quadrupole mass spectrometry and reflection high-energy electron diffraction
Creators: name: Fernández-Garrido, S.
name: Koblmüller, G.
name: Calleja, E.
name: Speck, J. S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thermal decomposition of wurtzite (0001)-oriented GaN was analyzed: in vacuum, under active N exposure, and during growth by rf-plasma assisted molecular beam epitaxy. The GaN decomposition rate was determined by measurements of the Ga desorption using in situ quadrupole mass spectrometry, which showed Arrhenius behavior with an apparent activation energy of 3.1 eV. Clear signatures of intensity oscillations during reflection high-energy electron diffraction measurements facilitated complementary evaluation of the decomposition rate and highlighted a layer-by-layer decomposition mode in vacuum. Exposure to active nitrogen, either under vacuum or during growth under N-rich growth conditions, strongly reduced the GaN losses due to GaN decomposition.
Cramer-Rao Bound for Sparse Signals Fitting the Low-Rank Model with Small Number of Parameters
Creators: name: Shaghaghi, Mahdi
name: Vorobyov, Sergiy A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we consider signals with a low-rank covariance matrix which reside in a low-dimensional subspace and can be written in terms of a finite (small) number of parameters. Although such signals do not necessarily have a sparse representation in a finite basis, they possess a sparse structure which makes it possible to recover the signal from compressed measurements. We study the statistical performance bound for parameter estimation in the low-rank signal model from compressed measurements. Specifically, we derive the Cramer-Rao bound (CRB) for a generic low-rank model and we show that the number of compressed samples needs to be larger than the number of sources for the existence of an unbiased estimator with finite estimation variance. We further consider the applications to direction-of-arrival (DOA) and spectral estimation which fit into the low-rank signal model. We also investigate the effect of compression on the CRB by considering numerical examples of the DOA estimation scenario, and show how the CRB increases by increasing the compression or equivalently reducing the number of compressed samples.
description: 14 pages, 1 figure, Submitted to IEEE Signal Processing Letters on December 2014
Elliptic function of level 4
Creators: name: Bunkova, Elena Yu.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Complex Variables (math.CV)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: The work is dedicated to the theory of elliptic functions of level $n$. An elliptic function of level $n$ determines a Hirzebruch genus that is called elliptic genus of level $n$. Elliptic functions of level $n$ are also interesting as solutions of Hirzebruch functional equations. The elliptic function of level $2$ is the Jacobi elliptic sine. It determines the famous Ochanine--Witten genus. It is the exponential of the universal formal group of the form \[ F(u,v)=\frac{u^2 -v^2}{u B(v) - v B(u)}, \quad B(0) = 1. \] The elliptic function of level $3$ is the exponential of the universal formal group of the form \[ F(u,v)=\frac{u^2 A(v) -v^2 A(u)}{u A(v)^2 - v A(u)^2}, \qquad A(0) = 1, \quad A"(0) = 0. \] In this work we have obtained that the elliptic function of level $4$ is the exponential of the universal formal group of the form \[ F(u,v)=\frac{u^2 A(v) -v^2 A(u)}{u B(v)-v B(u)}, \text{ where } A(0) = B(0) = 1, \] and for $B'(0) = A"(0) = 0, A'(0) = A_1, B"(0) = 2 B_2$ the relation holds \[ (2 B(u) + 3 A_1 u)^2 = 4 A(u)^3 - (3 A_1^2 - 8 B_2) u^2 A(u)^2. \] To prove this result we have expressed the elliptic function of level $4$ in terms of Weierstrass elliptic functions.
Selection of EUFAR Transnational Access projects documentation
Creators: name: Unknown
Publisher: name: Zenodo
Year: 9999
Subjects: data and information

description: Selection of EUFAR Transnational Access projects documentation
description: Previously curated at: http://cedadocs.ceda.ac.uk/1222/ The publish date on this item was its original completed date. Main files in this record: A.NEW.pdf ACEMED.pdf ADDRESSS.pdf AEGEAN_GAME2.pdf AIMWETLAB.pdf AIRES-CZM.pdf ALISA.pdf ARMSRACE.pdf BLLATE1.pdf BLLATE2.pdf DeInVader.pdf DRAMAC.pdf EDOCROS.pdf GEOMAD.pdf HABlakes.pdf HyMedEcos-Gradients.pdf HyperForest.pdf HYPERSTRESS.pdf LADUNEX.pdf MORE.pdf QAD.pdf QAD-AWI.pdf QAD-CNR.pdf QAD-DLR.pdf QAD-KIT.pdf QAD-SF20.pdf RAIN4DUST.pdf SEDMEDHY.pdf SONATA.pdf SRMGlaciers.pdf SVALBD_PGLACIAL2.pdf T_MAPP_FP7.pdf UR-TIR.pdf ValCalHyp.pdf ValCalHyp-INTA.pdf VERDRILLT.pdf VESSAER.pdf WaLiTemp.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Additional file 2 of The spatial and temporal exploitation of anthropogenic food sources by common ravens (Corvus corax) in the Alps
Creators: name: Jain, Varalika
name: Bugnyar, Thomas
name: Cunningham, Susan J.
name: Gallego-Abenza, Mario
name: Loretto, Matthias-Claudio
name: Sumasgutner, Petra
Publisher: name: figshare
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 2. Examples of Google Earth satellite imagery of the identified anthropogenic food sources in the Austrian Alps.
Althaea officinalis Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Althaea
Althaea officinalis

description: Althaea officinalis Linnaeus, Species Plantarum 2: 686. 1753. "Habitat in Hollandiae, Angliae, Galliae, Sibiriae subhumidis." RCN: 5031. Lectotype (Riedl in Rechinger, Fl. Iranica 120: 39. 1976): Herb. Linn. No. 868.1 (LINN). Generitype of Althaea Linnaeus (vide Green, Prop. Brit. Bot.: 172. 1929). Current name:  Althaea officinalis L. (Malvaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 281, DOI: 10.5281/zenodo.291971
Database structure and meaning of filenames for the euroclim500 dataset
Creators: name: Unknown
Publisher: name: Zenodo
Year: 9999
Subjects: data and information

description: Documentation associated with the Euroclim500 dataset held at CEDA.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1223/ The publish date on this item was its original completed date. Main files in this record: database_structure_filenames.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
A comprehensive diagram to grow InAlN alloys by plasma-assisted molecular beam epitaxy
Creators: name: Fernández-Garrido, S.
name: Gačević, Ž.
name: Calleja, E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Indium incorporation and surface morphology of InAlN layers grown on (0001)GaN by plasma-assisted molecular beam epitaxy were investigated as a function of the impinging In flux and the substrate temperature in the 450-610$^{\circ}$C range. In incorporation was found to decrease with substrate temperature due to thermal decomposition of the growing layer, while for a given temperature it increased with the impinging In flux until stoichiometry was reached at the growth front. The InN losses during growth followed an Arrhenius behaviour characterized by an activation energy of 2.0 eV. A growth diagram highly instrumental to identify optimum growth conditions was established.
Fast Bayesian Optimal Experimental Design for Seismic Source Inversion
Creators: name: Long, Quan
name: Motamed, Mohammad
name: Tempone, Raul
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation (stat.CO)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We develop a fast method for optimally designing experiments in the context of statistical seismic source inversion. In particular, we efficiently compute the optimal number and locations of the receivers or seismographs. The seismic source is modeled by a point moment tensor multiplied by a time-dependent function. The parameters include the source location, moment tensor components, and start time and frequency in the time function. The forward problem is modeled by elastodynamic wave equations. We show that the Hessian of the cost functional, which is usually defined as the square of the weighted L2 norm of the difference between the experimental data and the simulated data, is proportional to the measurement time and the number of receivers. Consequently, the posterior distribution of the parameters, in a Bayesian setting, concentrates around the "true" parameters, and we can employ Laplace approximation and speed up the estimation of the expected Kullback-Leibler divergence (expected information gain), the optimality criterion in the experimental design procedure. Since the source parameters span several magnitudes, we use a scaling matrix for efficient control of the condition number of the original Hessian matrix. We use a second-order accurate finite difference method to compute the Hessian matrix and either sparse quadrature or Monte Carlo sampling to carry out numerical integration. We demonstrate the efficiency, accuracy, and applicability of our method on a two-dimensional seismic source inversion problem.
Constraining white dwarf structure and neutrino physics in 47 Tucanae
Creators: name: Goldsbury, Ryan
name: Heyl, Jeremy
name: Richer, Harvey
name: Kalirai, Jason
name: Tremblay, Pier-Emmanuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a robust statistical analysis of the white dwarf cooling sequence in 47 Tucanae. We combine HST UV and optical data in the core of the cluster, Modules for Experiments in Stellar Evolution (MESA) white dwarf cooling models, white dwarf atmosphere models, artificial star tests, and a Markov Chain Monte Carlo (MCMC) sampling method to fit white dwarf cooling models to our data directly. We use a technique known as the unbinned maximum likelihood to fit these models to our data without binning. We use these data to constrain neutrino production and the thickness of the hydrogen layer in these white dwarfs. The data prefer thicker hydrogen layers $(q_\mathrm{H}=3.2\e{-5})$ and we can strongly rule out thin layers $(q_\mathrm{H}=10^{-6})$. The neutrino rates currently in the models are consistent with the data. This analysis does not provide a constraint on the number of neutrino species.
description: 12 pages, 15 figures
In situ investigation of growth modes during plasma-assisted molecular beam epitaxy of (0001)GaN
Creators: name: Koblmüller, G.
name: Fernández-Garrido, S.
name: Calleja, E.
name: Speck, J. S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Real-time analysis of the growth modes during homoepitaxial (0001)GaN growth by plasma-assisted molecular beam epitaxy was performed using reflection high energy electron diffraction. A growth mode map was established as a function of Ga/N flux ratio and growth temperature, exhibiting distinct transitions between three-dimensional (3D), layer-by-layer and step-flow growth mode. The layer-by-layer to step-flow growth transition under Ga-rich growth was surfactant mediated and related to a Ga adlayer coverage of one monolayer. Under N-rich conditions the transition from 3D to layer-by-layer growth was predominantly thermally activated, facilitating two-dimensional growth at temperatures of thermal decomposition.
Additional file 4 of The spatial and temporal exploitation of anthropogenic food sources by common ravens (Corvus corax) in the Alps
Creators: name: Jain, Varalika
name: Bugnyar, Thomas
name: Cunningham, Susan J.
name: Gallego-Abenza, Mario
name: Loretto, Matthias-Claudio
name: Sumasgutner, Petra
Publisher: name: figshare
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 4. Revisitation plots for 45 anthropogenic food source sites exploited by common ravens in the Austrian Alps.
Ring-shaped spectra of parametric down-conversion and entangled photons that never meet
Creators: name: Spasibko, Kirill
name: Kopylov, Denis
name: Murzina, Tatiana
name: Leuchs, Gerd
name: Chekhova, Maria
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the observation of an unusual type of parametric down-conversion. In the regime where collinear degenerate emission is in the anomalous range of group-velocity dispersion, its spectrum is restricted in both angle and wavelength. Detuning from exact collinear-degenerate phasematching leads to a ring shape of the wavelength-angular spectrum, suggesting a new type of spatiotemporal coherence and entanglement of photon pairs. By imposing a phase varying in a specific way in both angle and wavelength, one can obtain an interesting state of an entangled photon pair, with the two photons being never at the same point at the same time.
description: 4 pages, 6 figures
Hit time and hit position reconstruction in the J-PET detector based on a library of averaged model signals
Creators: name: Moskal, P.
name: Sharma, N. G.
name: Silarski, M.
name: Bednarski, T.
name: Białas, P.
name: Bułka, J.
name: Czerwiński, E.
name: Gajos, A.
name: Kamińska, D.
name: Kapłon, L.
name: Kochanowski, A.
name: Korcyl, G.
name: Kowal, J.
name: Kowalski, P.
name: Kozik, T.
name: Krzemień, W.
name: Kubicz, E.
name: Niedźwiecki, Sz.
name: Pałka, M.
name: Raczyński, L.
name: Rudy, Z.
name: Rundel, O.
name: Salabura, P.
name: Słomski, A.
name: Smyrski, J.
name: Strzelecki, A.
name: Wieczorek, A.
name: Wiślicki, W.
name: Wochlik, I.
name: Zieliński, M.
name: Zoń, N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In this article we present a novel method of hit time and hit position reconstruction in long scintillator detectors. We take advantage of the fact that for this kind of detectors amplitude and shape of registered signals depends strongly on the position where particle hit the detector. The reconstruction is based on determination of the degree of similarity between measured and averaged signals stored in a library for a set of well-defined positions along the scintillator. Preliminary results of validation of the introduced method with experimental data obtained by means of the double strip prototype of the J-PET detector are presented.
Forcings used for the HadCM3 simulations
Creators: name: Unknown
Publisher: name: Zenodo
Year: 9999
Subjects: data and information

description: Documentation associated with the Euroclim500 dataset held at CEDA.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1224/ The publish date on this item was its original completed date. Main files in this record: Forcing_simulation_details.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Random phase-free kinoform for large objects
Creators: name: Shimobaba, Tomoyoshi
name: Kakue, Takashi
name: Endo, Yutaka
name: Hirayama, Ryuji
name: Hiyama, Daisuke
name: Hasegawa, Satoki
name: Nagahama, Yuki
name: Sano, Marie
name: Sugie, Takashige
name: Ito, Tomoyoshi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a random phase-free kinoform for large objects. When not using the random phase in kinoform calculation, the reconstructed images from the kinoform are heavy degraded, like edge-only preserved images. In addition, the kinoform cannot record an entire object that exceeds the kinoform size because the object light does not widely spread. In order to avoid this degradation and to widely spread the object light, the random phase is applied to the kinoform calculation; however, the reconstructed image is contaminated by speckle noise. In this paper, we overcome this problem by using our random phase-free method and error diffusion method.