cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Matter-wave bistability in coupled atom-molecule quantum gases
Creators: name: Jiang, Lei
name: Pu, Han
name: Robertson, Andrew
name: Ling, Hong Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the matter-wave bistability in coupled atom-molecule quantum gases, in which heteronuclear molecules are created via an interspecies Feshbach resonance involving either two-species Bose or two-species Fermi atoms at zero temperature. We show that the resonant two-channel Bose model is equivalent to the nondegenerate parametric down-conversion in quantum optics, while the corresponding Fermi model can be mapped to a quantum optics model that describes a single-mode laser field interacting with an ensemble of inhomogeneously broadened two-level atoms. Using these analogy and the fact that both models are subject to the Kerr nonlinearity due to the two-body s-wave collisions, we show that under proper conditions, the population in the molecular state in both models can be made to change with the Feshbach detuning in a bistable fashion.
description: 6 pages, 5 figures
title: The theory of economic growth
Creators: name: Harris, Donald J.
Year: 2017
Subjects: subject: Wirtschaftswachstum Sektoraler Strukturwandel Ungleichheit

description: Der Aufsatz steht im Zusammenhang mit der 3rd International Summer School of Economics des Centres for Advanced Economic Studies in Triest von 21.-31. August 1983 und der anschließenden Konferenz in Udine im September 1983.
description: Kopie des Preprints, 8 Blätter, paginiert 2-28
Towards Effective Sentence Simplification for Automatic Processing of Biomedical Text
Creators: name: Jonnalagadda, Siddhartha
name: Tari, Luis
name: Hakenberg, Jorg
name: Baral, Chitta
name: Gonzalez, Graciela
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The complexity of sentences characteristic to biomedical articles poses a challenge to natural language parsers, which are typically trained on large-scale corpora of non-technical text. We propose a text simplification process, bioSimplify, that seeks to reduce the complexity of sentences in biomedical abstracts in order to improve the performance of syntactic parsers on the processed sentences. Syntactic parsing is typically one of the first steps in a text mining pipeline. Thus, any improvement in performance would have a ripple effect over all processing steps. We evaluated our method using a corpus of biomedical sentences annotated with syntactic links. Our empirical results show an improvement of 2.90% for the Charniak-McClosky parser and of 4.23% for the Link Grammar parser when processing simplified sentences rather than the original sentences in the corpus.
description: 4 pages, In Proc. of the NAACL-HLT 2009, Boulder, USA, June
The low-mass Initial Mass Function in the young cluster NGC 6611
Creators: name: Oliveira, J. M.
name: Jeffries, R. D.
name: van Loon, J. Th.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: NGC 6611 is the massive young cluster (2-3 Myr) that ionises the Eagle Nebula. We present very deep photometric observations of the central region of NGC 6611 obtained with the Hubble Space Telescope and the following filters: ACS/WFC F775W and F850LP and NIC2 F110W and F160W, loosely equivalent to ground-based IZJH filters. This survey reaches down to I ~ 26 mag. We construct the Initial Mass Function (IMF) from ~ 1.5 Msun well into the brown dwarf regime (down to ~ 0.02 Msun). We have detected 30-35 brown dwarf candidates in this sample. The low-mass IMF is combined with a higher-mass IMF constructed from the groundbased catalogue from Oliveira et al. (2005). We compare the final IMF with those of well studied star forming regions: we find that the IMF of NGC 6611 more closely resembles that of the low-mass star forming region in Taurus than that of the more massive Orion Nebula Cluster (ONC). We conclude that there seems to be no severe environmental effect in the IMF due to the proximity of the massive stars in NGC 6611.
description: accepted for publication in MNRAS (main journal); 18 pages, 12 figures and 3 tables
The evolution of the Lyman-alpha forest effective optical depth following HeII reionisation
Creators: name: Bolton, James S.
name: Oh, S. Peng
name: Furlanetto, Steven R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Three independent observational studies have now detected a narrow (Δz ~ 0.5) dip centred at z=3.2 in the otherwise smooth redshift evolution of the Lya forest effective optical depth. This feature has previously been interpreted as an indirect signature of rapid photo-heating in the IGM during the epoch of HeII reionisation. We examine this interpretation using a semi-analytic model of inhomogeneous HeII reionisation and high resolution hydrodynamical simulations of the Lya forest. We instead find that a rapid (Δz ~ 0.2) boost to the IGM temperature (ΔT ~ 10^4 K) beginning at z=3.4 produces a well understood and generic evolution in the Lya effective optical depth, where a sudden reduction in the opacity is followed by a gradual, monotonic recovery driven largely by adiabatic cooling in the low density IGM. This behaviour is inconsistent with the narrow feature in the observational data. If photo-heating during HeII reionisation is instead extended over several redshift units, as recent theoretical studies suggest, then the Lya opacity will evolve smoothly with redshift. We conclude that the sharp dip observed in the Lya forest effective optical depth is instead most likely due to a narrow peak in the hydrogen photo-ionisation rate around z=3.2, and suggest that it may arise from the modulation of either reprocessed radiation during HeII reionisation, or the opacity of Lyman limit systems.
description: 16 pages, 7 figures, accepted to MNRAS with minor revisions
title: Two routes to effective demand
Creators: name: Garegnani, Pierangelo
Year: 2017
Subjects: subject: Effektive Nachfrage Liquiditätspräferenztheorie Kommentar

description: Der Aufsatz steht im Zusammenhang mit der 3rd International Summer School of Economics des Centres for Advanced Economic Studies in Triest von 21.-31. August 1983 und der anschließenden Konferenz in Udine im September 1983.
description: Kopie des Aufsatzes im Sammelwerk, 4 Blätter, paginiert 69-80
Latest developments and scope of Health Technology Assessment in India: Tapping into the future
Creators: name: Rajwar, Eti
name: Parsekar, Shradha S.
name: Pundir, Prachi
name: Brand, Helmut
name: Brand, Angela
Publisher: name: figshare
Year: 2022
Subjects: subject: 111712 Health Promotion
subject: FOS: Health sciences
subject: Health Care
subject: 111717 Primary Health Care
subject: 111799 Public Health and Health Services not elsewhere classified

description: Health Technology Assessment (HTA) is a multifaceted approach for informing policy by considering social, medical, economic and ethical aspects in a systematic and transparent manner. HTA is an important tool for decision making, priority setting and for resource allocation, leading to Universal Health Coverage.The objective of this narrative review was to summarize the HTA process in India and the future challenges.
Research Protocol informing 'From Research to Resilience: Preparedness Lessons from COVID-19'
Creators: name: Loffreda, Lucia
name: Cox, Ellie
name: Johnson, Rob
Publisher: name: Zenodo
Year: 2025
Subjects: COVID-19
data sharing
open data
protocol
research funding
SARS-CoV-2

description: This research protocol outlines the methodological approach for investigating pathways between SARS-CoV-2 genomic data generation and its uptake in research and policy. Commissioned by Wellcome, the protocol establishes a structured framework for examining eight international research projects funded during the COVID-19 pandemic to strengthen genomic surveillance capabilities across Africa, Asia, Latin America, and the Middle East. 

The protocol details a comprehensive mixed-methods approach, combining qualitative and quantitative data collection through semi-structured interviews, focus groups, and an online survey with 125 funded researchers. 
description: This study was funded by Wellcome. For more information, contact Natsuko Imai-Eaton, n.imai@wellcome.org.
Search for Cold Debris Disks around M-dwarfs. II
Creators: name: Lestrade, J. -F.
name: Wyatt, M. C.
name: Bertoldi, F.
name: Menten, K. M.
name: Labaigt, G.
name: ;
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Although 70 % of the stars in the Galaxy are M-dwarfs, thermal emission searches for cold debris disks have been conducted mostly for A-type and solar-type stars. We report on new lambda=1.2 mm continuum observations of thirty M-dwarfs, using the MAMBO-2 bolometer array camera at the IRAM 30m telescope. For a statistical analysis, we combine these data with our prior SCUBA and MAMBO-2 observations of 20 other M-dwarfs. Our total sample divides in M-dwarfs in moving groups, with relatively young ages, and in nearby M-dwarfs with unknown ages. Only one cold debris disk (GJ842.2) was detected significantly. We compare the implied disk abundance constraints with those found in two comparable submillimeter surveys of 10 to 190 Myr old A- and FGK-type stars. For the 19 youngest (ages less than 200 Myr) M-dwarfs in our sample, we derive a cold disk fraction of 5.3^{+10.5}_{-5.0} %, compared to 15 +/-11.5 % for FGK-stars and 22^{+33}_{-20} % for A-stars. Hence, for this age group, there is an apparent trend of fewer cold disks for later stellar types, i.e., lower star masses. Although its statistical significance is marginal, this trend is strengthened by the deeper sensitivity of observations in the M-dwarf sample. We derive a cold disk fraction of < 10 % for the older (likely a few Gyr) M-dwarfs in our sample. Finally, although inconclusively related to a debris disk, we present the complex millimeter structure found around the position of the M1.5 dwarf GJ526 in our sample.
description: Accepted in Astronomy and Astrophysics, 15 pages, 12 figures
Quantum Criticality and Novel Phases: Summary and Outlook
Creators: name: Schofield, A. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This conference summary and outlook provides a personal overview of the topics and themes of the August 2009 Dresden meeting on quantum criticality and novel phases. The dichotomy between the local moment and the itinerant views of magnetism is revisited and refreshed in new materials, new probes and new theoretical ideas. New universality and apparent zero temperature phases of matter move us beyond the old ideas of quantum criticality. This is accompanied by alternative pairing interactions and as yet unidentified phases developing in the vicinity of quantum critical points. In discussing novel order, the magnetic analogues of superconductivity are considered as candidate states for the hidden order that sometimes develops in the vicinity of quantum critical points in metallic systems. These analogues can be thought of as "pairing" in the particle-hole channel and are tabulated. This analogy is used to outline a framework to study the relation between ferromagnetic fluctuations and the propensity of a metal to nematic type phases which at weak coupling correspond to Pomeranchuk instabilities. This question can be related to the fundamental relations of Fermi liquid theory.
description: Conference summary for the 2009 Dresden Meeting on Quantum Criticality and Novel Phases. 7 pages and 4 figures. The associated presentation may be found at http://www.theory.bham.ac.uk/staff/schofield/talks/Dresden/
title: Oligopoly, investment and stagnation
Creators: name: Boitani, Andrea
Year: 2017
Subjects: subject: Kalecki, Michal <1899-1970> Steindl, Josef <1912-1993> Wirtschaftsentwicklung Stagnation

description: Das Paper steht im Zusammenhang mit der 3rd International Summer School of Economics des Centres for Advanced Economic Studies in Triest von 21.-31. August 1983 und der anschließenden Konferenz in Udine, September 1983.
description: Typoskript, 33 Blätter, paginiert 1-31, mit handschriftlichen Ergänzungen des Verfassers
title: Oligopoly: Static and Dynamic Analysis
Creators: name: Sylos Labini, Paolo
Year: 2017

description: Kopie des Zeitschriftenartikels (Kopie verkleinert auf 2 Seiten pro Seite), 13 Blätter, paginiert 57-79 und Titelseite. Mit handschriftlichen Anmerkungen und Anstreichungen von Josef Steindl.
Metabolic consequences of diving: the anoxic turtle
Creators: name: Storey, Kenneth Bruce
Publisher: name: University of British Columbia
Year: 2010

description: Catalytic and regulatory properties of phosphofructokinase (PFK) (EC 2.7.1.11), pyruvate kinase (PK) (EC 2.7.1.40), and creatine kinase (CK) (EC 2.7.3.2) from the heart of the red-eared turtle (Pseudemys scripta elegans) were studied. Particular attention was given to those properties of the enzymes which could help to explain the high glycolytic efficiency in this tissue and so provide insights into the selective forces involved in the evolutionary development of an extreme tolerance to anoxia. The control of glycolytic flux in turtle ventrical muscle has been vested primarily in phosphofructokinase and pyruvate kinase. Creatine phosphate and fructose diphosphate play pivotal roles in the channelling of carbon through the pathway and in the production of metabolic energy as ATP. The levels of these key metabolites are in turn tightly regulated. One of the enzymes studied (phosphofructokinase) controls the levels of fructose diphosphate produced and creatine kinase (itself modulated by the cell's redox balance) controls creatine phosphate levels. When oxygen levels are reduced, NADH accumulates because of a decrease in electron transport chain regeneration of NAD (129). This leads to an effective activation of creatine kinase by lowering the Kм for creatine phosphate. This activation causes a drop in creatine phosphate levels without the decline in ATP levels that are seen at the onset of hypoxia in other tissues ( 4 ). Since the high levels of creatine phosphate present in aerobic heart are responsible for the inhibition of phosphofructokinase by greatly increasing the for its substrate, fructose-6-phosphate, this drop in concentration deinhibits the enzyme and leads to a flush of its product, fructose diphosphate. The increase in fructose diphosphate (1) serves to activate phosphorructokinase by itself, and (2) further reduces the effect of creatine phosphate by a deinhibition of the enzyme. These two effects cause an autocatalytic increase in flux through this locus* Fructose diphosphate also feed-forward activates pyruvate kinase by decreasing the Km for its substrate, phosphoenolpyruvate, and serves to deinhibit this enzyme which is normally inactive due to alanine and ATP inhibition. The most important feature of such a regulatory system is that it is a kind of autocatalytic cascade. Once the activation of creatine kinase is initiated by the redox imbalance inherent in anaerobiosis, all the various regulatory interactions potentiate one another. Drops in inhibitor levels lead to increases in activator levels and these activators serve to further deinhibit. These interacting effects serve to potentiate anoxic production of energy to compensate for the temporary depletion of oxygen in diving stress and in long periods of hibernation in this turtle, Nature's premier vertebrate anaerobe.
Optical phenomena in brany Kerr spacetimes
Creators: name: Schee, Jan
name: Stuchlik, Zdenek
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the influence of the tidal charge parameter of the braneworld models onto some optical phenomena in rotating black hole spacetimes. The escape photon cones are determined for special families of locally non-rotating, circular geodetical and radially free falling observers. The silhouette of a rotating black hole, the shape of an equatorial thin accretion disk and time delay effect for direct and indirect images of a radiation hot spot orbiting the black hole are given and classified in terms of the black hole rotational and tidal parameters. It is shown that rising of negatively-valued tidal parameter, with rotational parameter fixed, generally strenghtens the relativistic effects and suppresses the rotation induced asymmetries in the optical phenomena.
description: Accepted by Int. Journal of Mod. Phys. D
title: Les conséquences économiques de l'austérité
Creators: name: Parguez, Alain
Year: 2017
Subjects: subject: Keynesianismus Sparpolitik Auswirkung

description: Mit handschriftlichen Anmerkungen und Widmung des Verfassers. - Das Paper steht im Zusammenhang mit der 3rd International Summer School of Economics des Centres for Advanced Economic Studies in Triest von 21.-31. August 1983 und der anschließenden Konferenz in Udine im September 1983.
description: Typoskript, 5 Blätter, paginiert 2-9, 2 Tabellenanhänge mit 8 Blättern, paginiert 32-39 und 2 Blätter mit Paginierung 22 und 25
Accurate harmonic vibrational frequencies for diatomic molecules via quantum computing
Creators: name: Chou, Shih-Kai
name: Chou, Jyh-Pin
name: Hu, Alice
name: Cheng, Yuan-Chung
name: Goan, Hsi-Sheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: During the noisy intermediate-scale quantum (NISQ) era, quantum computational approaches refined to overcome the challenge of limited quantum resources are highly valuable. However, the accuracy of the molecular properties predicted by most of the quantum computations nowadays is still far off (not within chemical accuracy) compared to their corresponding experimental data. Here, we propose a promising qubit-efficient quantum computational approach to calculate the harmonic vibrational frequencies of a large set of neutral closed-shell diatomic molecules with results in great agreement with their experimental data. To this end, we construct the accurate Hamiltonian using molecular orbitals, derived from density functional theory to account for the electron correlation and expanded in the Daubechies wavelet basis set to allow an accurate representation in real space grid points, where an optimized compact active space is further selected so that only a reduced small number of qubits is sufficient to yield an accurate result. To justify the approach, we benchmark the performance of the Hamiltonians spanned by the selected molecular orbitals by first transforming the molecular Hamiltonians into qubit Hamiltonians and then using the exact diagonalization method to calculate the results, regarded as the best results achievable by quantum computation. Furthermore, we show that the variational quantum circuit with the chemistry-inspired UCCSD ansatz can achieve the same accuracy as the exact diagonalization method except for systems whose Mayer bond order indices are larger than 2. For those systems, we demonstrate that the heuristic hardware-efficient RealAmplitudes ansatz, even with a shorter circuit depth, can provide a significant improvement over the UCCSD ansatz, verifying that the harmonic vibrational frequencies could be calculated accurately by quantum computation in the NISQ era.
description: 17 pages, 5 figures plus 11-page supplemental material
Resurfacing processes constrained by crater distribution on Ryugu
Creators: name: Takaki, Naofumi
name: Cho, Yuichiro
name: Morota, Tomokatsu
name: Tatsumi, Eri
name: Honda, Rie
name: Kameda, Shingo
name: Yokota, Yasuhiro
name: Sakatani, Naoya
name: Kouyama, Toru
name: Hayakawa, Masahiko
name: Matsuoka, Moe
name: Yamada, Manabu
name: Honda, Chikatoshi
name: Suzuki, Hidehiko
name: Yoshioka, Kazuo
name: Ogawa, Kazunori
name: Sawada, Hirotaka
name: Michel, Patrick
name: Sugita, Seiji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Understanding the geological modification processes on asteroids can provide information concerning their surface history. Images of small asteroids from spacecraft show a depletion in terms of smaller craters. Seismic shaking was considered to be responsible for crater erasure and the main driver modifying the geology of asteroids via regolith convection or the Brazil nut effect. However, a recent artificial impact experiment on the asteroid Ryugu by the Japanese Hayabusa2 mission revealed minimal seismic activity. To investigate whether a seismic shaking model can reproduce the observed crater record, the crater distribution on Ryugu was analyzed using crater production functions under cohesionless conditions. Crater retention ages were estimated as a function of crater diameter for Ryugu, Itokawa, Eros, and Bennu using the crater size-frequency distribution and crater production function estimated for those asteroids. We found that the power-law indices "a" are inconsistent with diffusion processes (e.g., seismic shaking, a=2). This result suggests that seismic shaking models based on diffusion equations cannot explain the crater distribution on small asteroids. Alternative processes include surface flows, possibly at the origin of geomorphological and spectral features of Ryugu. We demonstrate that the vertical mixing of material at depths shallower than 1 m occurs over 10^3-10^5 yr by cratering and obliteration. The young surface age of Ryugu is consistent with the slow space weathering that results from cratering, as suggested in previous studies. The timescale (10^4-10^6 yr) required for resurfacing at depths of 2-4 m can be compared with the cosmic-ray exposure ages of returned samples to constrain the distribution of impactors that collide with Ryugu.
description: 30 pages, 9 figures, 2 tables. Submitted to Icarus
Quasiparticle Heat Transport in Ba$_{1-x}$K$_x$Fe$_2$As$_2$: Evidence for a k-dependent Superconducting Gap without Nodes
Creators: name: Luo, X. G.
name: Tanatar, M. A.
name: Reid, J. -Ph.
name: Shakeripour, H.
name: Doiron-Leyraud, N.
name: Ni, N.
name: Bud'ko, S. L.
name: Canfield, P. C.
name: Luo, Huiqian
name: Wang, Zhaosheng
name: Wen, Hai-Hu
name: Prozorov, Ruslan
name: Taillefer, Louis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The thermal conductivity $κ$ of the iron-arsenide superconductor Ba$_{1-x}$K$_x$Fe$_2$As$_2$ ($T_c \simeq$ 30 K) was measured in single crystals at temperatures down to $T \simeq 50$ mK ($\simeq T_c$/600) and in magnetic fields up to $H = 15$ T ($\simeq H_{c2}$/4). A negligible residual linear term in $κ/T$ as $T \to 0$ shows that there are no zero-energy quasiparticles in the superconducting state. This rules out the existence of line and in-plane point nodes in the superconducting gap, imposing strong constraints on the symmetry of the order parameter. It excludes d-wave symmetry, drawing a clear distinction between these superconductors and the high-$T_c$ cuprates. However, the fact that a magnetic field much smaller than $H_{c2}$ can induce a residual linear term indicates that the gap must be very small on part of the Fermi surface, whether from strong anisotropy or band dependence, or both.
Review of Transition-Metal Diboride Thin Films
Creators: name: Magnuson, Martin
name: Hultman, Lars
name: Högberg, Hans
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We review the thin film growth, chemistry, and physical properties of Group 4-6 transition-metal diboride (TMB2) thin films with AlB2-type crystal structure (Strukturbericht designation C32). Industrial applications are growing rapidly as TMB2 begin competing with conventional refractory ceramics like carbides and nitrides, including pseudo-binaries such as Ti1-xAlxN. The TMB2 crystal structure comprises graphite-like honeycombed atomic sheets of B interleaved by hexagonal close-packed TM layers. From the C32 crystal structure stems unique properties including high melting point, hardness, and corrosion resistance, yet limited oxidation resistance, combined with high electrical conductivity. We correlate the underlying chemical bonding, orbital overlap, and electronic structure to the mechanical properties, resistivity, and high-temperature properties unique to this class of materials. The review highlights the importance of avoiding contamination elements (like oxygen) and boron segregation on both the target and substrate sides during sputter deposition, for better-defined properties, regardless of the boride system investigated. This is a consequence of the strong tendency for B to segregate to TMB2 grain boundaries for boron-rich compositions of the growth flux. It is judged that sputter deposition of TMB2 films is at a tipping point towards a multitude of applications for TMB2 not solely as bulk materials, but also as protective coatings and electrically conducting high-temperature stable thin films.
description: 81 pages, 11 figures, 4 tables
A Universal Luminosity Function for Radio Supernova Remnants
Creators: name: Chomiuk, Laura
name: Wilcots, Eric M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We compile radio supernova remnant (SNR) samples from the literature for 19 nearby galaxies ranging from the SMC to Arp 220, and use this data to constrain the SNR luminosity function (LF) at 20 cm. We find that radio SNR populations are strikingly similar across galaxies. The LF can be described as a power law with constant index and scaling proportional to a galaxy's star formation rate (SFR). Unlike previous authors, we do not find any dependence of SNR luminosity on a galaxy's global ISM density. The observed correlation between the luminosity of a galaxy's brightest SNR and a galaxy's SFR can be completely explained by statistical effects, wherein galaxies with higher SFR more thoroughly sample the high-luminosity end of the SNR LF. The LF is well fit by a model of SNR synchrotron emission which includes diffusive shock acceleration and magnetic field amplification, if we assume that all remnants are undergoing adiabatic expansion, the densities of star-forming regions are similar across galaxies, and the efficiency of CR production is constant.
description: Accepted for publication in the Astrophysical Journal
Monotonicity of quantum ground state energies: Bosonic atoms and stars
Creators: name: Kiessling, Michael K. -H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The N-dependence of the non-relativistic bosonic ground state energy is studied for quantum N-body systems with either Coulomb or Newton interactions. The Coulomb systems are "bosonic atoms," with their nucleus fixed, and the Newton systems are "bosonic stars". In either case there exists some third order polynomial in N such that the ratio of the ground state energy to the respective polynomial grows monotonically in N. Some applications of these new monotonicity results are discussed.
Some Practical Applications of Dark Matter Research
Creators: name: Stodolsky, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Two practical spin-offs from the development of cryogenic dark matter detectors are presented. One in materials research, the other in biology.
description: 8 pages,4 figures
title: A transformation of the transformation problem
Creators: name: Fujimoto, Takao
Year: 2017
Subjects: subject: Marxismus Wirtschaftstheorie Mathematisches Modell

description: Untertitel fingiert. - Typoskript wurde vermutlich verfasst zur Vorlesung gehalten im Rahmen der 3rd International Summer School of Economics des Centres for Advanced Economic Studies in Triest von 21.-31. August 1983 und der anschließenden Konferenz in Udine im September 1983.
description: Typoskript, 2 Blätter
Spitzer Observations of the Lambda Orionis cluster I: the frequency of young debris disks at 5 Myr
Creators: name: Hernández, Jesús
name: Calvet, Nuria
name: Hartmann, L.
name: Muzerolle, J.
name: Gutermuth, R.
name: Stauffer, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present IRAC/MIPS Spitzer observations of intermediate-mass stars in the 5 Myr old Lambda Orionis cluster. In a representative sample of stars earlier than F5 (29 stars), we find a population of 9 stars with a varying degree of moderate 24um excess comparable to those produced by debris disks in older stellar groups. As expected in debris disks systems, those stars do not exhibit emission lines in their optical spectra. We also include in our study the star HD 245185, a known Herbig Ae object which displays excesses in all Spitzer bands and shows emission lines in its spectrum. We compare the disk population in the Lambda Orionis cluster with the disk census in other stellar groups studied using similar methods to detect and characterize their disks and spanning a range of ages from 3 Myr to 10 Myr. We find that for stellar groups of 5 Myr or older the observed disk frequency in intermediate mass stars (with spectral types from late B to early F) is higher than in low mass stars (with spectral types K and M). This is in contradiction with the observed trend for primordial disks evolution, in which stars with higher stellar masses dissipate their primordial disks faster. At 3 Myr the observed disk frequency in intermediate mass stars is still lower than for low mass stars indicating that second generation dusty disks start to dominate the disk population at 5 Myr for intermediate mass stars. This result agrees with recent models of evolution of solids in the region of the disk where icy objects form (>30 AU), which suggest that at 5-10 Myr collisions start to produce large amount of dust during the transition from runaway to oligarchic growth (reaching sizes of ~500 km) and then dust production peaks at 10-30 Myr, when objects reach their maximum sizes (>1000 km)
description: 29 pages, 6 figures. Accepted in the Astrophysical Journal
Acuaria brumpti Chabaud & Petter 1961
Creators: name: Mutafchiev, Yasen
name: Mariaux, Jean
name: Georgiev, Boyko B.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Secernentea
Spirurida
Acuariidae
Acuaria
Acuaria brumpti

description: (iii) Acuaria brumpti Chabaud & Petter, 1961 described from Luscinia megarhynchos (Brehm) (Passeriformes: Muscicapidae) (type-host) in France (type-locality) (Chabaud & Petter, 1961), and Luscinia luscinia (L.) in Russia (Kaliningradskaya Oblast’) and the Ukraine (Jögis, 1971; Smogorzhevskaya, 1990).
description: Published as part of Yasen Mutafchiev, Jean Mariaux & Boyko B. Georgiev, 2017, Description of Acuaria europaea n. sp. (Spirurida: Acuariidae) from Dendrocopos syriacus (Hemprich & Ehrenberg) and Oriolus oriolus (L.) (Aves) in Europe, with results of re-examination of related European species of Acuaria Bremser, 1811, pp. 201-214 in Systematic Parasitology 94 on page 212, DOI: 10.1007/s11230-016-9695-z, http://zenodo.org/record/1039390
description: {"references": ["Chabaud, A. G., & Petter, A. (1961). Nematodes du genre Acuaria de la Faune de France. Annales de Parasitologie Humaine et Comparee, 36, 409 - 424.", "Jogis, V. A. (1971). On the taxonomy of the genus Acuaria Bremser, 1811. Parazitologiya, 5, 83 - 87 (in Russian).", "Smogorzhevskaya, L. A. (1990). [Nematodes. Part 3. Acuarioidea]. In: Sharpilo, V. P. (Ed.) Fauna Ukrainy. Vol. 32. Kiev: Naukova Dumka, 189 pp (In Russian)."]}
An ontology-based approach to define and manage B2B interoperability
Creators: name: Gessa, Nicola <1975>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: INF/01 Informatica

description: Electronic business surely represents the new development perspective for world-wide trade. Together with the idea of ebusiness, and the exigency to exchange business messages between trading partners, the concept of business-to-business (B2B) integration arouse. B2B integration is becoming necessary to allow partners to communicate and exchange business documents, like catalogues, purchase orders, reports and invoices, overcoming architectural, applicative, and semantic differences, according to the business processes implemented by each enterprise. Business relationships can be very heterogeneous, and consequently there are variousways to integrate enterprises with each other. Moreover nowadays not only large enterprises, but also the small- and medium- enterprises are moving towards ebusiness: more than two-thirds of Small and Medium Enterprises (SMEs) use the Internet as a business tool. One of the business areas which is actively facing the interoperability problem is that related with the supply chain management. In order to really allow the SMEs to improve their business and to fully exploit ICT technologies in their business transactions, there are three main players that must be considered and
joined: the new emerging ICT technologies, the scenario and the requirements of the enterprises and the world of standards and standardisation bodies. This thesis presents the definition and the development of an interoperability framework (and the bounded standardisation intiatives) to provide the Textile/Clothing sectorwith a shared set of
business documents and protocols for electronic transactions. Considering also some limitations, the thesis proposes a ontology-based approach to improve the functionalities of the developed framework and, exploiting the technologies of the semantic web, to improve the standardisation life-cycle, intended as the development, dissemination and adoption of B2B protocols for specific
business domain. The use of ontologies allows the semantic modellisation of knowledge domains, upon which it is possible to develop a set of components for a better management of B2B protocols, and to ease their comprehension and adoption for the target users.
Formalizing languages for service oriented computing
Creators: name: Guidi, Claudio <1974>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: INF/01 Informatica

description: Service Oriented Computing is a new programming paradigm for addressing distributed system design issues. Services are autonomous computational entities which can be dynamically discovered and composed in order to form more complex systems able to achieve different kinds of task. E-government, e-business and e-science are some examples
of the IT areas where Service Oriented Computing will be exploited in the next years. At present, the most credited Service Oriented Computing technology is that of Web Services, whose specifications are enriched day by day by industrial consortia without following a precise and rigorous approach. This PhD thesis aims, on the one hand, at modelling Service Oriented Computing in a formal way in order to precisely define the main concepts it is based upon and, on the other hand, at defining a new approach, called bipolar approach, for addressing system design issues by synergically exploiting choreography and orchestration languages related by means of a mathematical relation
called conformance. Choreography allows us to describe systems of services from a global view point whereas orchestration supplies a means for addressing such an issue from a local perspective. In this work we present SOCK, a process algebra based language inspired by the Web Service orchestration language WS-BPEL which catches the essentials
of Service Oriented Computing. From the definition of SOCK we will able to define a general model for dealing with Service Oriented Computing where services and systems of services are related to the design of finite state automata and process algebra concurrent systems, respectively. Furthermore, we introduce a formal language for dealing with choreography. Such a language is equipped with a formal semantics and it forms, together with a subset of the SOCK calculus, the bipolar framework. Finally, we present JOLIE which is a Java implentation of a subset of the SOCK calculus and it is part of the bipolar framework we intend to promote.
Acuaria cordata Mueller 1897
Creators: name: Mutafchiev, Yasen
name: Mariaux, Jean
name: Georgiev, Boyko B.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Secernentea
Spirurida
Acuariidae
Acuaria
Acuaria cordata

description: (iv) Acuaria cordata (Mueller, 1897) from Lanius collurio L. and Lanius senator L. (Passeriformes: Laniidae) in Europe (Mueller, 1897). Subsequently, it was recorded from diverse host in Europe and Asia, e.g. L. collurio in Kaliningradskaya Oblast’ (Jögis, 1977), Lanius minor Gmelin in the Ukraine (Smogorzhevskaya, 1990) and Lanius excubitor L. in Tajikistan (Dubinina & Serkova, 1951), Corvus corax subcorax Severtsov in the Kyzylkum Desert, Central Asia (Krotov, 1952), G. glandarius, Eremophila alpestris (L.) (Alaudidae), Motacilla alba L. (Motacillidae), Phylloscopus fuscatus (Blyth) and Lanius cristatus L. in Tuva Republic, Russia (Sonin & Larchenko, 1974), Dicrurus hottentottus palawanemis Tweeddale and Dicrurus leucophaeus Vieillot (Dicruridae) in the Philippines (Schmidt & Kuntz, 1971).
description: Published as part of Yasen Mutafchiev, Jean Mariaux & Boyko B. Georgiev, 2017, Description of Acuaria europaea n. sp. (Spirurida: Acuariidae) from Dendrocopos syriacus (Hemprich & Ehrenberg) and Oriolus oriolus (L.) (Aves) in Europe, with results of re-examination of related European species of Acuaria Bremser, 1811, pp. 201-214 in Systematic Parasitology 94 on page 212, DOI: 10.1007/s11230-016-9695-z, http://zenodo.org/record/1039390
description: {"references": ["Mueller, A. (1897). Helminthologische Mitteilungen. Archiv fur Naturgeschichte, 63, 1 - 26.", "Jogis, V. A. (1977). Nematodes from birds of the Kaliningrad district and Estonian SSR. Parazitologicheskiy Sbornik, 5, 81 - 113 (in Russian).", "Smogorzhevskaya, L. A. (1990). [Nematodes. Part 3. Acuarioidea]. In: Sharpilo, V. P. (Ed.) Fauna Ukrainy. Vol. 32. Kiev: Naukova Dumka, 189 pp (In Russian).", "Dubinina, M. N., & Serkova, O. P. (1951). Round worms from birds wintering in South Tadjikistan. Parazitologicheski Sbornik Zoologicheskogo Instituta Akademii Nauk SSSR, 13, 75 - 95 (in Russian).", "Krotov, A. I. (1952). Nematodes of birds of the lower reach of the River Amu-Darya. Trudy Gel'mintologicheskoy Laboratorii Akademii Nauk SSSR, 6, 273 - 277 (in Russian).", "Sonin, M. D., & Larchenko, T. T. (1974). Nematodes of birds of Tuva. Trudy Gel'mintologicheskoy Laboratorii Akademii Nauk SSSR, 24, 173 - 181 (In Russian).", "Schmidt, G., & Kuntz, R. E. (1971). Nematode parasites of Oceanica. XV. Acuariidae, Streptocaridae, and Seuratidae of birds. Proceedings of the Helminthological Society of Washington, 38, 217 - 223."]}
Demonstration of Quadrature Squeezed Surface-Plasmons in a Gold Waveguide
Creators: name: Huck, Alexander
name: Smolka, Stephan
name: Lodahl, Peter
name: Soerensen, Anders S.
name: Boltasseva, Alexandra
name: Janousek, Jiri
name: Andersen, Ulrik L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on the efficient generation, propagation, and re-emission of squeezed long-range surface-plasmon polaritons (SPPs) in a gold waveguide. Squeezed light is used to excite the non-classical SPPs and the re-emitted quantum state is fully quantum characterized by complete tomographic reconstruction of the density matrix. We find that the plasmon-assisted transmission of non-classical light in metallic waveguides can be described by a Hamiltonian analogue to a beam splitter. This result is explained theoretically.
The Araucaria Project. The Distance to the Small Magellanic Cloud from Near-Infrared Photometry of RR Lyrae Variables
Creators: name: Szewczyk, Olaf
name: Pietrzynski, Grzegorz
name: Gieren, Wolfgang
name: Ciechanowska, Anna
name: Bresolin, Fabio
name: Kudritzki, Rolf-Peter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have obtained deep infrared J and K band observations of nine 4.9x4.9 arcmin fields in the Small Magellanic Cloud (SMC) with the ESO New Technology Telescope equipped with the SOFI infrared camera. In these fields, 34 RR Lyrae stars catalogued by the OGLE collaboration were identified. Using different theoretical and empirical calibrations of the infrared period-luminosity-metallicity relation, we find consistent SMC distance moduli, and find a best true distance modulus to the SMC of 18.97 +/- 0.03 (statistical) +/- 0.12 (systematic) mag which agrees well with most independent distance determinations to this galaxy, and puts the SMC 0.39 mag more distant than the LMC for which our group has recently derived, from the same technique, a distance of 18.58 mag.
description: AJ submitted and accepted
Acuaria europaea Yasen Mutafchiev & Jean Mariaux & Boyko B. Georgiev 2017, n. sp.
Creators: name: Mutafchiev, Yasen
name: Mariaux, Jean
name: Georgiev, Boyko B.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Secernentea
Spirurida
Acuariidae
Acuaria
Acuaria europaea

description: (vi) Acuaria europaea n. sp. from Dendrocopos syriacus (Hemprich & Ehrenberg) (type-host) and Oriolus oriolus (L.) in Bulgaria (type-locality) and France (present study).
description: Published as part of Yasen Mutafchiev, Jean Mariaux & Boyko B. Georgiev, 2017, Description of Acuaria europaea n. sp. (Spirurida: Acuariidae) from Dendrocopos syriacus (Hemprich & Ehrenberg) and Oriolus oriolus (L.) (Aves) in Europe, with results of re-examination of related European species of Acuaria Bremser, 1811, pp. 201-214 in Systematic Parasitology 94 on page 212, DOI: 10.1007/s11230-016-9695-z, http://zenodo.org/record/1039390
Pattern-based segmentation of digital documents: model and implementation
Creators: name: Di Iorio, Angelo <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: INF/01 Informatica

description: This thesis proposes a new document model, according to which any document can be segmented in some independent components and transformed in a pattern-based projection, that only uses a very small set of objects and composition rules. The point is that such a normalized document expresses the same fundamental information of the original one, in a simple, clear and unambiguous way. The central part of my work consists of discussing that model, investigating how a digital document can be segmented, and how a segmented version can be used to implement advanced tools of conversion. I present seven patterns which are versatile enough to capture the most relevant documents’ structures, and whose minimality and rigour make that implementation possible. The abstract model is then instantiated into an actual markup language, called IML. IML is a general and extensible language, which basically adopts an XHTML syntax, able to capture a posteriori the only content of a digital document. It is compared with other languages and proposals, in order to clarify its role and
objectives. Finally, I present some systems built upon these ideas. These applications are evaluated in terms of users’ advantages, workflow improvements and impact over the overall quality of the output. In particular, they cover heterogeneous content management processes: from web editing to collaboration (IsaWiki and WikiFactory), from e-learning (IsaLearning) to professional printing (IsaPress).
Measuring the saturation scale in nuclei
Creators: name: Kopeliovich, B. Z.
name: Potashnikova, I. K.
name: Schmidt, Ivan
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The saturation momentum seeing in the nuclear infinite momentum frame is directly related to transverse momentum broadening of partons propagating through the medium in the nuclear rest frame. Calculation of broadening within the color dipole approach including the effects of saturation in the nucleus, gives rise to an equation which describes well data on broadening in Drell-Yan reaction and heavy quarkonium production.
description: 11 pages, 5 figures, based on the talk presented by B.K. at the INT workshop "Physics at a High Energy Electron Ion Collider", Seattle, October 2009
Dynamic grammar pruning for program size reduction in symbolic regression
Creators: name: Ali, Muhammad Sarmad
name: KSHIRSAGAR, MEGHANA
name: NAREDO, ENRIQUE
name: RYAN, CONOR
Publisher: name: University of Limerick
Year: 2023
Subjects: Information and computing sciences

description: Grammar is a key input in grammar-based genetic programming. Grammar design not only infuences performance, but also program size. However, grammar design and the choice of productions often require expert input as no automatic approach exists. This research work discusses our approach to automatically reduce a bloated grammar. By utilizing a simple Production Ranking mechanism, we identify productions which are less useful and dynamically prune those to channel evolutionary search towards better (smaller) solutions. Our objective in this work was program size reduction without compromising generalization performance. We tested our approach on 13 standard symbolic regression datasets with Grammatical Evolution. Using a grammar embodying a well-defned function set as a baseline, we compare efective genome length and test performance with our approach. Dynamic grammar pruning achieved signifcantly better genome lengths for all datasets, while signifcantly improving generalization performance on three datasets, although it worsened in fve datasets. When we utilized linear scaling during the production ranking stages (the frst 20 generations) the results dramatically improved. Not only were the programs smaller in all datasets, but generalization scores were also signifcantly better than the baseline in 6 out of 13 datasets, and comparable in the rest. When the baseline was also linearly scaled as well, the program size was still smaller with the Production Ranking approach, while generalization scores dropped in only three datasets without any signifcant compromise in the rest.
Acuaria galliardi Chabaud & Petter 1961
Creators: name: Mutafchiev, Yasen
name: Mariaux, Jean
name: Georgiev, Boyko B.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Secernentea
Spirurida
Acuariidae
Acuaria
Acuaria galliardi

description: (vii) Acuaria galliardi Chabaud & Petter, 1961 from Muscicapa sp. (Passeriformes: Muscicapidae) in France (Chabaud & Petter, 1961).
description: Published as part of Yasen Mutafchiev, Jean Mariaux & Boyko B. Georgiev, 2017, Description of Acuaria europaea n. sp. (Spirurida: Acuariidae) from Dendrocopos syriacus (Hemprich & Ehrenberg) and Oriolus oriolus (L.) (Aves) in Europe, with results of re-examination of related European species of Acuaria Bremser, 1811, pp. 201-214 in Systematic Parasitology 94 on page 212, DOI: 10.1007/s11230-016-9695-z, http://zenodo.org/record/1039390
description: {"references": ["Chabaud, A. G., & Petter, A. (1961). Nematodes du genre Acuaria de la Faune de France. Annales de Parasitologie Humaine et Comparee, 36, 409 - 424."]}