cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Frequency Resolved Measurement of Longitudinal Impedances Using Transient Beam Diagnostics
Creators: name: Teytelman, D.
name: Fox, J.
name: Prabhakar, S.
name: Byrd, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: In this paper we present several techniques for characterizing longitudinal impedances based on transient measurements of the growth rates and tune shifts of unstable coupled-bunch modes. These techniques are applicable to measurement of both fundamental and higher-order mode impedances and allow characterization of shunt impedances and quality factors of the HOMs. Methods presented here are complementary to lab bench measurements of RF cavities, in that the beam based measurements directly sense the physical impedance in the installed configuration. In contrast to a single-bunch integrated impedance measurement these techniques resolve the impedances in the frequency domain. These methods allow determination of the impedance's unaliased frequency by analyzing synchronous phase transients. Experimental results from ALS and BESSY-II are presented showing the use of these techniques to measure complex impedances.
Supplemental information from Eco-evolutionary feedbacks link prey adaptation to predator performance
Creators: name: Fryxell, David C.
name: Wood, Zachary T.
name: Robinson, Rebecca
name: Kinnison, Michael T.
name: Palkovacs, Eric P.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: Eco-evolutionary feedbacks may determine the outcome of predator–prey interactions in nature, but little work has been done to quantify the feedback effect of short-term prey adaptation on predator performance. We tested the effects of prey availability and recent (less than 100 years) prey adaptation on the feeding and growth rate of largemouth bass (Micropterus salmoides), foraging on western mosquitofish (Gambusia affinis). Field surveys showed higher densities and larger average body sizes of mosquitofish in recently introduced populations without bass. Over a six-week mesocosm experiment, bass were presented with either a high or low availability of mosquitofish prey from recently established populations either naive or experienced with bass. Naive mosquitofish were larger, less cryptic and more vulnerable to bass predation compared to their experienced counterparts. Bass consumed more naive prey, grew more quickly with naive prey, and grew more quickly per unit biomass of naive prey consumed. The effect of mosquitofish history with the bass on bass growth was similar in magnitude to the effect of mosquitofish availability. In showing that recently derived predation-related prey phenotypes strongly affect predator performance, this study supports the presence of reciprocal predator–prey trait feedbacks in nature.
Shelving spectroscopy of the strontium intercombination line
Creators: name: Manai, I.
name: Molineri, A.
name: Fréjaville, C.
name: Duval, C.
name: Bataille, P.
name: Journet, R.
name: Wiotte, F.
name: Laburthe-Tolra, B.
name: Maréchal, E.
name: Cheneau, M.
name: Robert-de-Saint-Vincent, M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present a spectroscopy scheme for the 7-kHz-wide 689-nm intercombination line of strontium. We rely on shelving detection, where electrons are first excited to a metastable state by the spectroscopy laser before their state is probed using the broad transition at 461 nm. As in the similar setting of calcium beam clocks, this enhances dramatically the signal strength as compared to direct saturated fluorescence or absorption spectroscopy of the narrow line. We implement shelving spectroscopy both in directed atomic beams and hot vapor cells with isotropic atomic velocities. We measure a fractional frequency instability $\sim 2 \times 10^{-12}$ at 1 s limited by technical noise - about one order of magnitude above shot noise limitations for our experimental parameters. Our work illustrates the robustness and flexibility of a scheme that can be very easily implemented in the reference cells or ovens of most existing strontium experiments, and may find applications for low-complexity clocks.
Rapid rotation of ultra-Li-depleted halo stars and their association with blue stragglers
Creators: name: Ryan, Sean G.
name: Gregory, Scott G.
name: Kolb, Ulrich
name: Beers, Timothy C.
name: Kajino, Toshitaka
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations of eighteen halo main-sequence-turnoff stars, four of which are extremely deficient in Li, show that three of the Li-poor ones have substantial line broadening. We attribute this to stellar rotation. Despite the great ages of halo stars, for G202-65, BD+51:1817 and Wolf 550 we infer vsini = 8.3 +/- 0.4, 7.6 +/- 0.3, and 5.5 +/- 0.6 km/s respectively. The stated errors are 3sigma. For CD-31:19466 we derive a 3sigma upper limit vsini < 2.2 km/s. The three rotating stars are known spectroscopic binaries. We explain the high rotation velocities in terms of mass and angular momentum transfer onto the surface of the turnoff star from an initially more-massive donor. Estimates of the specific angular momentum of accreted material indicate that quite small transfer masses could have been involved, though the unknown subsequent spin-down of the accretor prevents us from assigning definitive values for each star. The accretor is now seen as an ultra-Li-deficient star whose origin makes it a low-mass counterpart of field blue stragglers. The Li could have been destroyed before or during the mass-transfer episode. Such objects must be avoided in studies of the primordial Li abundance and in investigations into the way normal single stars process their initial Li.
description: 18 pages, 4 figures
Non-parametric Bayesian models for structured output prediction
Creators: name: Bratières, Sébastien
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: machine learning
Bayesian models
probability

description: Structured output prediction is a machine learning tasks in which an input object is not just assigned a single class, as in classification, but multiple, interdependent labels. This means that the presence or value of a given label affects the other labels, for instance in text labelling problems, where output labels are applied to each word, and their interdependencies must be modelled. Non-parametric Bayesian (NPB) techniques are probabilistic modelling techniques which have the interesting property of allowing model capacity to grow, in a controllable way, with data complexity, while maintaining the advantages of Bayesian modelling. In this thesis, we develop NPB algorithms to solve structured output problems. We first study a map-reduce implementation of a stochastic inference method designed for the infinite hidden Markov model, applied to a computational linguistics task, part-of-speech tagging. We show that mainstream map-reduce frameworks do not easily support highly iterative algorithms. The main contribution of this thesis consists in a conceptually novel discriminative model, GPstruct. It is motivated by labelling tasks, and combines attractive properties of conditional random fields (CRF), structured support vector machines, and Gaussian process (GP) classifiers. In probabilistic terms, GPstruct combines a CRF likelihood with a GP prior on factors; it can also be described as a Bayesian kernelized CRF. To train this model, we develop a Markov chain Monte Carlo algorithm based on elliptical slice sampling and investigate its properties. We then validate it on real data experiments, and explore two topologies: sequence output with text labelling tasks, and grid output with semantic segmentation of images. The latter case poses scalability issues, which are addressed using likelihood approximations and an ensemble method which allows distributed inference and prediction. The experimental validation demonstrates: (a) the model is flexible and its constituent parts are modular and easy to engineer; (b) predictive performance and, most crucially, the probabilistic calibration of predictions are better than or equal to that of competitor models, and (c) model hyperparameters can be learnt from data.
Tillicera ihlei Corporaal 1949
Creators: name: Gerstmeier, Roland
name: Bernhard, Nadine
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cleridae
Tillicera
Tillicera ihlei

description: Tillicera ihlei Corporaal, 1949
(Figs. 9, 30–31)
 Tillicera ihlei Corporaal 1949: 99.
 Specimens examined: Holotype: ♀. Tillicera Ihleri, Corporaal, 1949, ZMAN type COLE.1798.1, J. B. Corporaal: Type: Holotype: Tillicera Ihlei 1948, 1938 vend., H. Lucht, Java, K. O. Blawan, 900/1500 Mr., Idjen Plateau (ZMAN).
 Others: Java, J. D. Pasteur 1899 (2 ex., MNHN); F.C. Drescher, G. Tangkoeban Prahoe, 4000–5000 Voet, Preanger, Java, 11.1937 (1 ex., ZMAN); same data: 11.1934 (1 ex., RGCM).
 Length: 6–7mm (5 specimens).
 Collecting period: November.
 Head: Black, glossy, anterior part of clypeus, labrum and palpi brown, posterior part of clypeus brown to black; distributed with fine and dense punctation; cranium vested with erect, pale setae; head including eyes slightly broader than anterior width of pronotum.
 Antennae: Dark brown to black, A1 to A3 or A4 light brown, vested with depressed, brown setae; antennomeres triangularly dilated from A5 onwards, A10 broader than long.
 Pronotum: Surface anterior to transverse depression black, remainder brown, glossy; surface finely, diffusely and irregularly punctate; vested with anteriorly directed erect, pale and dark, setae; length:width ratio 1.11:1 (broadest in middle).
 Scutellum: Brown, irregularly punctate, vested with a few pale setae.
 Elytra: Basal third red-brown to brown, remainder black, with two yellowish pigmented transverse fasciae (spanning from the lateral margin to mid-way towards suture), with dense white setae; basal third with tubercles and deeply punctate in rows, only rows 3 to 7 extending towards the black part, becoming obsolete towards apex, diameter of punctures larger than interstices, apex densely and finely punctate; basal third with erect, pale and isolated dark setae, black part with posteriorly directed, semi-decumbent, predominantly dark setae; length:width ratio 2.24:1.
 Legs: Dark brown to black, base paler, with dense, erect, pale setae; meso- and metatibiae with carinae.
 Ventral surface: Abdomen dark brown to black, thorax brown, with few pale setae.
 Aedeagus: Very small, tooth-like structures only visible with higher microscopic magnification.
 Distribution: Indonesia (Java).
description: Published as part of Gerstmeier, Roland & Bernhard, Nadine, 2010, Revision of the genus Tillicera Spinola, 1841 (Coleoptera: Cleridae, Clerinae), pp. 1-34 in Zootaxa 2359 (1) on pages 19-21, DOI: 10.11646/zootaxa.2359.1.1, http://zenodo.org/record/5308760
Imaging the disk around the luminous young star LkHalpha 101 with infrared interferometry
Creators: name: Tuthill, P. G.
name: Monnier, J. D.
name: Danchi, W. C.
name: Hale, D. D. S.
name: Townes, C. H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Herbig Ae/Be star LkHalpha 101 has been imaged at high angular resolution at a number of wavelengths in the near-infrared (from 1 to 3 microns) using the Keck 1 Telescope, and also observed in the mid-infrared (11.15 microns) using the U.C. Berkeley Infrared Spatial Interferometer (ISI). The resolved circular disk with a central hole or cavity reported in Tuthill et al. (2001) is confirmed. This is consistent with an almost face-on view (inclination < 35 deg) onto a luminous pre- or early-main sequence object surrounded by a massive circumstellar disk. With a multiple-epoch study spanning almost four years, relative motion of the binary companion has been detected, together with evidence for changes in the brightness distribution of the central disk/star. The resolution of the LkHalpha 101 disk by ISI mid-infrared interferometry constitutes the first such measurement of a young stellar object in this wavelength region. The angular size was found to increase only slowly from 1.6 to 11.15 microns, inconsistent with standard power-law temperature profiles usually encountered in the literature, supporting instead models with a hot inner cavity and relatively rapid transition to a cool or tenuous outer disk. The radius of the dust-free inner cavity is consistent with a model of sublimation of dust in equilibrium with the stellar radiation field. Measurements from interferometry have been combined with published photometry enabling an investigation of the energetics and fundamental properties of this prototypical system.
description: Appearing in Astrophysical Journal. 24 pages; 8 figures
Cosmological framework for renormalization group extended gravity at the action level
Creators: name: Bertini, Nicolas R.
name: Hipolito-Ricaldi, Wiliam S.
name: de Melo-Santos, Felipe
name: Rodrigues, Davi C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: General relativity (GR) extensions based on renormalization group (RG) flows may lead to scale-dependent couplings with nontrivial effects at large distance scales. Here we develop further the approach in which RG effects at large distance scales are fully encoded in an effective action and we apply it to cosmology. In order to evaluate the cosmological consequences, our main assumption is the use of a RG scale such that the (infrared) RG effects only appear at perturbative order (not at the background level). The emphasis here is on analytical results and qualitative understanding of the implied cosmology. We employ commonly used parametrizations for describing modified gravity in cosmology (as the slip parameter). From them, we describe the dynamics of the first order perturbations and estimate bounds on the single dimensionless parameter ($ν$) introduced by this framework. Possible impacts on dark matter and dark energy are discussed. It is also shown here that the $ν$ parameter effects to $fσ_8$ are stronger at low redshifts ($z<1.5$), while different values for $ν$ do not appreciably change $fσ_8$ at higher redshifts, thus opening a window to alleviate an issue that is currently faced by $Λ$CDM.
description: v3: 13 pages, 1 figure. Added $f\sigma_8$ analysis and text improvements. Version to appear in EPJC
Development of New Cathodic Interlayers with Nano-Architectures for Lithium-Sulfur Batteries
Creators: name: Zhao, Teng
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: Lithium-sulfur Batteries
Interlayers
Nanostructure
Polysulfides
Chemical interaction
Metal oxides
Metal nitrides
Electrospinning
Carbon nanofibers

description: Issues with the dissolution and diffusion of polysulfides in liquid organic electrolytes hinder the advance of lithium–sulfur (Li-S) batteries for next generation energy storage. To trap and re-utilize the polysulfides, brush-like, zinc oxide (ZnO) nanowires based interlayers were prepared ex-situ using a wet chemistry method and were coupled with a sulfur/multi-walled carbon nanotube (S/MWCNT) composite cathode. The cell with this configuration showed a good cycle life at a high current rate ascribed to (a) a strong interaction between the polysulfides and ZnO nanowires grown on conductive substrates; (b) fast electron transfer and (c) an optimized ion diffusion path from a well-organized nanoarchitecture. A praline-like flexible interlayer consisting of titanium oxide (TiO2) nanoparticles and carbon (C) nanofiber was further prepared in-situ using an electrospinning method, which allows the chemical adsorption of polysulfides throughout a robust conductive film. A significant enhancement in cycle stability and rate capability was achieved by incorporating this interlayer with a composite cathode of S/MWCNT. These results herald a new approach to building functional interlayers by integrating metal oxides with conductive frameworks. The derivatives of the TiO2/C interlayer was synthesized by changing the precursor concentration and carbonization temperature. Finally, a dual-interlayer was fabricated by simply coating titanium nitride (TiN) nanoparticles onto an electro-spun carbon nanofiber mat, which was then sandwiched with a sulfur/assembled Ketjen Black (KB) composite cathode with an ultra-high sulfur loading. The conductive polar TiN nanoparticles not only have a strong chemical affinity to polysulfides through a specific sulfur-nitrogen bond but also improve the reaction kinetics of the cell by catalyzing the conversion of the long-chain polysulfides to lithium sulfide. Besides, carbon nanofiber mat ensures mechanical robustness to TiN layer and acts as a physical barrier to block polysulfides diffusion. The incorporation of dual interlayers with sulfur cathodes offers a commercially feasible approach to improving the performance of Li-S batteries.
description: Krishnan-Ang Studentship
Speeding up the Hybrid-Monte-Carlo algorithm for dynamical fermions
Creators: name: Hasenbusch, M.
name: Jansen, K.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We propose a modification of the Hybrid-Monte-Carlo algorithm that allows for a larger step-size of the integration scheme at constant acceptance rate. The key ingredient is the splitting of the pseudo-fermion action into two parts. We test our proposal at the example of the two-dimensional lattice Schwinger model and four-dimensional lattice QCD with two degenerate flavours of Wilson- fermions.
description: Lattice2001 (Algorithms and Machines)
Stabilizing Even-Parity Chiral Superconductivity in Sr$_2$RuO$_4$
Creators: name: Suh, Han Gyeol
name: Menke, Henri
name: Brydon, P. M. R.
name: Timm, Carsten
name: Ramires, Aline
name: Agterberg, Daniel F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strontium ruthenate (Sr$_2$RuO$_4$) has long been thought to host a spin-triplet chiral $p$-wave superconducting state. However, the singletlike response observed in recent spin-susceptibility measurements casts serious doubts on this pairing state. Together with the evidence for broken time-reversal symmetry and a jump in the shear modulus $c_{66}$ at the superconducting transition temperature, the available experiments point towards an even-parity chiral superconductor with $k_z(k_x\pm ik_y)$-like $E_g$ symmetry, which has consistently been dismissed based on the quasi-two-dimensional electronic structure of Sr$_2$RuO$_4$. Here, we show how the orbital degree of freedom can encode the two-component nature of the $E_g$ order parameter, allowing for a local orbital-antisymmetric spin-triplet state that can be stabilized by on-site Hund's coupling. We find that this exotic $E_g$ state can be energetically stable once a complete, realistic three-dimensional model is considered, within which momentum-dependent spin-orbit coupling terms are key. This state naturally gives rise to Bogoliubov Fermi surfaces.
description: 6+10 pages, 5 figures
DNAproDB (2025) implementation
Creators: name: Mitra, Raktim
name: S. Cohen, Ari
name: Sagendorf, Jared M.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310299
subject: Bioinformatics and computational biology not elsewhere classified

description: DNAproDB (https://dnaprodb.usc.edu/) is a database, visualization tool, and processing pipeline for analyzing structural features of protein–DNA interactions. Here, we present a substantially updated version through additional structural annotations, search, and user interface functionalities. The update expands the number of pre-analyzed protein–DNA structures, which are automatically updated weekly. The analysis pipeline identifies water-mediated hydrogen bonds that are incorporated into the visualizations of protein–DNA complexes. Tertiary structure-aware nucleotide layouts are now available. New file formats and external database annotations are supported. The website has been redesigned, and interacting with graphs and data is more intuitive. We also present a statistical analysis on the updated collection of structures revealing salient patterns in protein–DNA interactions.
Bent-core liquid crystal-functionalised flexible polymer substrates for liquid crystal alignment
Creators: name: B. Sivaranjini
name: V. Ganesh
name: S. Umadevi
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry

description: A transparent flexible polymer film is chemically functionalised with a bent-core liquid crystal (BCLC) compound for effective alignment of the bulk BCLC sample at the substrate–LC interface. The surface attachment was achieved via a simple procedure which involved pre-treatment of the polymer film (commercial name: over head projector film) using piranha solution followed by chemically attaching the BCLC compound through silane condensation reaction. Surface characterisation of the unmodified and BC-modified flexible films was carried out through X-ray photoelectron spectroscopy (XPS), attenuated total reflectance fourier transform infrared (ATR-FTIR) spectroscopy, contact angle (CA) and atomic force microscopy (AFM) techniques. The BC-modified flexible substrates are analysed for their efficiency to orient the bulk LC sample. Remarkably, the chemically modified polymer substrates are highly efficient in vertically aligning both the BC and rod-like LC samples at the substrate–LC interface, in comparison to their unmodified counterparts. The described method is simple, reproducible, surface modified substrates are highly stable and more importantly reusable. The demonstrated method for the alignment of BCLCs advances a step forward towards the realisation of applications proposed for these fascinating compounds.
Supplementary Materials from Priming third-party social exclusion does not elicit children's inclusion of out-group members
Creators: name: Stengelin, R.
name: Toppe, T.
name: Kansal, S.
name: Tietz, L.
name: Sürer, G.
name: Henderson, A. M. E.
name: Haun, D. B. M.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: 179999 Psychology and Cognitive Sciences not elsewhere classified
subject: FOS: Psychology

description: Info on pilot task which has been conducted after the study but which is not analyzed in the manuscript
Sound produced by entropic and compositional inhomogeneities
Creators: name: Rolland, Erwan Oluwasheyi
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: Combustion noise
Indirect noise
Thermoacoustics
Entropic noise
Compositional noise
Reverberation
Acoustics
Fluid Mechanics

description: Combustion noise is central to several efforts to curb aircraft emissions. Indeed, acoustic waves originating in the combustor are a major contributor to aircraft noise. Moreover, they can act as a trigger for thermoacoustic instabilities, the consequences of which may range from decreased efficiency to outright failure. Modern engines designed to lower NOx emissions are particularly susceptible to this phenomenon. Unsteady combustion generates acoustic waves — direct noise — as well as convected flow disturbances, such as entropic, vortical or compositional inhomogeneities. These disturbances generate additional acoustic waves — indirect noise — if they are accelerated. The main objectives of this thesis are to examine the validity of current theoretical models for indirect noise, and to propose new ones where needed. First, a one-dimensional theoretical framework for the direct and indirect noise produced in a reflective environment is presented. The direct noise produced by the addition of mass, momentum and energy to a flow is determined analytically. A model for the entropic and compositional noise generated at a compact nozzle is then derived, accounting for nozzles with non-uniform entropy. Finally, the effect of reverberation (i.e. repeated acoustic reflections) is determined analytically. This enables direct and indirect acoustic sources to be identified and separated within experimental data, while eliminating the effect of acoustic reflections. The framework is applied to a model experiment — the Cambridge Wave Generator — in which direct, entropic and compositional noise are generated. Direct and indirect noise models are validated using experimental measurements of the sound field resulting from air injection and extraction, heat addition and helium injection. For the first time, direct, entropic and compositional noise are clearly identified in the experimental data, and shown to be in line with theoretical predictions. The results provide the first experimental demonstration of the compositional noise mechanism, and show that isentropic nozzle models are inadequate in predicting the indirect noise generated at nozzles with substantial losses.
description: This work was funded by a DTA studentship awarded by the Engineering and Physical Sciences Research Council (EPSRC).
Brauer-Manin obstruction for Erdős-Straus surfaces
Creators: name: Bright, Martin
name: Loughran, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14G05 (primary), 11D68, 11D25, 14F22 (secondary)

description: We study the failure of the integral Hasse principle and strong approximation for the Erdős-Straus conjecture using the Brauer-Manin obstruction.
description: 17 pages
Fluctuations in the Quantum Vacuum
Creators: name: Sidharth, B. G.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We argue that it is a fluctuational underpinning of the Quantum vacuum which on the one hand gives a stochastic character to the conservation laws, and on the other is required for explaining the recently observed acceleration of the universe. This also provides us with the arrow of time, in a consistent cosmology.
description: 10 pages, TeX
Photometric standard stars in the BVI system in a wide field centered on the spiral galaxy NGC 300
Creators: name: Pietrzynski, G.
name: Gieren, W.
name: Udalski, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on 13 nights of observations of four fields in NGC 300, we have set up an extensive sequence of stars with accurate BVI photometry covering a relatively large (25 x 25 arcmin) region centered on this galaxy. This sequence of standard stars is very useful for calibrating the photometry of variable stars and other objects in NGC 300 and other galaxies obtained from wide field mosaic images. Our standard star list contains B, V and I measurements for 390 stars. The accuracy of the zero points in the V filter and B-V color is better than 0.02 mag, and about 0.03 mag for the V-I color. We found very good agreement between our measurements and those previously obtained by Walker for 26 stars near NGC 300.
description: 12 pages, Latex, 1 Figure in gif format, 1 Table as postscript file. P.A.S.P. in press
A Comparative Assessment of the Forestry Services in Finland and Sweden
Creators: name: Mattila, O.
name: Roos, A.
name: Mattila, O.
name: Roos, A.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: forestry services
subject: Finland
subject: Sweden
subject: service dominant logic

description: Non-industrial private forest owners (NIPFs) are the most significant ownership group in Finland and in Sweden by owning more than half of the productive forest land. Emphasis on meeting the industry requirements for stable roundwood supply has traditionally dominated the service offerings targeted to NIPFs but the changing objectives of the private forest owners have also diversified their service needs. Therefore, it seems that the traditional ‘roundwood supply approach’ does no longer match the service needs among modern forest owners. More flexible service markets and a larger number of actors might improve conditions for those forest owners with more diverse service needs. Environmental and cultural similarities combined with the long common cultural traditions make the comparison of Finnish and Swedish forestry services markets reasonable: the good methods in each country could be adopted also by the ‘neighbour’. The Finnish markets are facing structural changes when it comes to organising the service delivery system. In Sweden, especially the role of the forest owners’ organisations and the present situation offers some clues of the way the Finnish system is possibly going to evolve. Changes in the financial base of the Finnish forest management associations towards the Swedish way of the voluntary membership system could affect the whole service markets. Simultaneously, the stronger interest groups of the independent forestry entrepreneurs in the Finnish markets are supporting entrepreneurship, compared with the Swedish where contractors struggle in a difficult market environment against strong industry. The theoretical objective is to examine and compare the market and institutional background for service innovation in the contexts of Finnish and Swedish forest clusters. Based on the concepts of service-dominant logic and dynamic capabilities, the empirical objective of the project is to describe the existing and potential service business models and their development possibilities. This research contributes to an improved service-dominant logic based system in which customer value is created at the level of the whole network of actors. Using qualitative approach and 16 thematic expert interviews in Swedish and Finnish service organizations, we will aim to identify potential barriers and opportunities for creating new services in the NIPF markets and, further, suggestions to develop new service innovations to fulfil emerging needs among forest owners.
The ionized gas in the Galactic Center Radio Arc
Creators: name: Rodriguez-Fernandez, N. J.
name: Martin-Pintado, J.
name: de Vicente, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Infrared Space Observatory (ISO) observations of fine structure lines toward the Radio Arc region, close to Sgr A, in the Galactic center region (GCR). The ionization at large scale is dominated by the clusters of massive stars in this region: the Quintuplet and the Arches cluster. Any other possible mechanism as interaction with the magnetic fields revealed by the Non-Thermal Filaments (NTFs) must play a minor role. The radiation in this area is relatively hard ($T_\mathrm{eff}\sim 33-35$ kK) but diluted. It reaches large distances due to the inhomogeneity of the medium.
description: 2 pages, 2 figures. Contribution to the conference "The evolution of galaxies II: basic building blocks", Eds. Sauvage, Vigroux, Schaerer, Madden, Use kluwer.cls
REDD+ benefit sharing mechanisms: Does it make a difference in equity?
Creators: name: Mustalahti, I.
name: Rakotonarivo, S.
name: Mustalahti, I.
name: Rakotonarivo, S.
Publisher: name: Unknown
Year: 2012
Subjects: Environmental Economics and Policy
Land Economics/Use

description: The concept of Reducing Emissions from Deforestation and Forest Degradation (REDD+) has become a key debate of international cooperation on climate change. While most countries acknowledge the importance of so called community carbon benefits under REDD+ interventions, they are only just beginning the process of defining institutional arrangements for the sharing of economic benefits in REDD+. The Tanzanian Community Carbon Enterprise and UN-REDD+ models offer two examples of benefit sharing mechanisms which remains to be analyzed. The various actors and groups involved in designing these models have varying degrees of negotiation powers and diverse interests regarding the objectives, design and implementation of REDD+. This raises questions of institutional choices: how REDD+ benefit sharing mechanisms influences equity in forms of recognition of local representation and accountability of the non-governmental organizations to agrarian communities and in various levels of governance.
Tillicera michaeli Gerstmeier & Bernhard 2010, n. sp.
Creators: name: Gerstmeier, Roland
name: Bernhard, Nadine
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cleridae
Tillicera
Tillicera michaeli

description: Tillicera michaeli Gerstmeier & Bernhard n. sp.
(Figs. 12, 34–35)
 Specimens examined: Holotype: ♂. Laos, Phongsaly Prov., Phongsaly env., Phu Fa, h: 1450–1600 m, 27.7.2006, leg. M. Geiser, Bergregenwald, Umgestürzter Baum (RGCM).
 Paratypes: Same data as Holotype: 27.7.2006 (2ex., RGCM, 2ex., MGCB), 28.7.2006 (1ex., RGCM).
 Length: 9–10mm (6 specimens).
 Collecting period: July.
 Head: Black, glossy, anterior part of clypeus, labrum and palpi brown, posterior part of clypeus black; relatively densely distributed with fine punctation; anterior part of cranium vested with erect golden setae, posterior part with dark setae; head including eyes slightly broader than anterior width of pronotum.
 Antennae: Dark brown to black, vested with depressed, dark setae; antennomeres triangularly dilated from A4 or A5 onwards, A10 as long as wide.
 Pronotum: Red-brown to brown, apex sometimes slightly darker; surface finely and densely punctate; vested with anteriorly directed long, pale and dark, erect, setae, and shorter, pale, depressed, setae; length:width ratio 0.93:1 (broadest just behind middle).
 Scutellum: Brown, finely punctate, vested with dense, pale setae.
 Elytra: Black, with two transverse fasciae, the anterior (black) fascia narrowly lined with yellowish depressed setae, the posterior, narrowly yellowish pigmented fascia very broadly lined with yellowish depressed setae; humeral callous present; disc deeply punctate in rows, extending towards posterior transverse fascia, diameter of punctures larger than interstices; apex densely and finely punctate; basal third and apex with erect, long, predominantly golden setae, along suture and at side margins also with shorter depressed, golden setae, middle part with posteriorly directed, short, semi-decumbent, setae, and isolated, long, erect, dark setae; length:width ratio 2.01:1.
 Legs: Brown, pro- and mesofemora and base of metafemora paler; with dense, pale, erect setae; tibiae without carinae.
 Ventral surface: Abdomen dark brown to black, thorax brown, with dense, depressed, pale setae.
 Aedeagus: Tip asymmetrical, tooth-like structures only indistinct at base.
 Distribution: Laos.
 Etymology: This species is dedicated to Michael Geiser, a young Cleroidea colleague and the collector of this species.
description: Published as part of Gerstmeier, Roland & Bernhard, Nadine, 2010, Revision of the genus Tillicera Spinola, 1841 (Coleoptera: Cleridae, Clerinae), pp. 1-34 in Zootaxa 2359 (1) on pages 23-25, DOI: 10.11646/zootaxa.2359.1.1, http://zenodo.org/record/5308760
Stationary correlations for a far-from-equilibrium spin chain
Creators: name: Schmittmann, B.
name: Schmueser, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A kinetic one-dimensional Ising model on a ring evolves according to a generalization of Glauber rates, such that spins at even (odd) lattice sites experience a temperature $T_{e}$ ($T_{o}$). Detailed balance is violated so that the spin chain settles into a non-equilibrium stationary state, characterized by multiple interactions of increasing range and spin order. We derive the equations of motion for arbitrary correlation functions and solve them to obtain an exact representation of the steady state. Two nontrivial amplitudes reflect the sublattice symmetries; otherwise, correlations decay exponentially, modulo the periodicity of the ring. In the long chain limit, they factorize into products of two-point functions, in precise analogy to the equilibrium Ising chain. The exact solution confirms the expectation, based on simulations and renormalization group arguments, that the long-time, long-distance behavior of this two-temperature model is Ising-like, in spite of the apparent complexity of the stationary distribution.
description: 9 pages
Joint Subcarrier and Power Allocation in NOMA: Optimal and Approximate Algorithms
Creators: name: Salaün, Lou
name: Coupechoux, Marceau
name: Chen, Chung Shue
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Computational Complexity (cs.CC)
subject: Data Structures and Algorithms (cs.DS)
subject: Signal Processing (eess.SP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Non-orthogonal multiple access (NOMA) is a promising technology to increase the spectral efficiency and enable massive connectivity in 5G and future wireless networks. In contrast to orthogonal schemes, such as OFDMA, NOMA multiplexes several users on the same frequency and time resource. Joint subcarrier and power allocation problems (JSPA) in NOMA are NP-hard to solve in general. In this family of problems, we consider the weighted sum-rate (WSR) objective function as it can achieve various tradeoffs between sum-rate performance and user fairness. Because of JSPA's intractability, a common approach in the literature is to solve separately the power control and subcarrier allocation (also known as user selection) problems, therefore achieving sub-optimal result. In this work, we first improve the computational complexity of existing single-carrier power control and user selection schemes. These improved procedures are then used as basic building blocks to design new algorithms, namely Opt-JSPA, $\varepsilon$-JSPA and Grad-JSPA. Opt-JSPA computes an optimal solution with lower complexity than current optimal schemes in the literature. It can be used as a benchmark for optimal WSR performance in simulations. However, its pseudo-polynomial time complexity remains impractical for real-world systems with low latency requirements. To further reduce the complexity, we propose a fully polynomial-time approximation scheme called $\varepsilon$-JSPA. Since, no approximation has been studied in the literature, $\varepsilon$-JSPA stands out by allowing to control a tight trade-off between performance guarantee and complexity. Finally, Grad-JSPA is a heuristic based on gradient descent. Numerical results show that it achieves near-optimal WSR with much lower complexity than existing optimal methods.
Investigating neural correlates of stimulus repetition using fMRI
Creators: name: Abdulrahman, Hunar
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: neuron
fMRI
neuroimaging
repetition suppression
modelling
brain
memory

description: Examining the effect of repeating stimuli on brain activity is important for theories of perception, learning and memory. Functional magnetic resonance imaging (fMRI) is a non-invasive way to examine repetition-related effects in the human brain. However the Blood-Oxygenation Level-Dependent (BOLD) signal measured by fMRI is far removed from the electrical activity recorded from single cells in animal studies of repetition effects. Despite that, there have been many claims about the neural mechanisms associated with fMRI repetition effects. However, none of these claims has adequately considered the temporal and spatial resolution limitations of fMRI. In this thesis, I tackle these limitations by combining simulations and modelling in order to infer repetition-related changes at the neural level. I start by considering temporal limitations in terms of the various types of general linear model (GLM) that have used to deconvolve single-trial BOLD estimates. Through simulations, I demonstrate that different GLMs are best depending on the relative size of trial-variance versus scan-variance, and the coherence of those variabilities across voxels. To address the spatial limitations, I identify six univariate and multivariate properties of repetition effects measured by event-related fMRI in regions of interest (ROI), including how repetition affects the ability to classify two classes of stimuli. To link these properties to underlying neural mechanisms, I create twelve models, inspired by single-cell studies. Using a grid search across model parameters, I find that only one model (“local scaling”) can account for all six fMRI properties simultaneously. I then validate this result on an independent dataset that involves a different stimulus set, protocol and ROI. Finally, I investigate classification of initial versus repeated presentations, regardless of the stimulus class. This work provides a better understanding of the neural correlates of stimulus repetition effects, as well as illustrating the importance of formal modelling.
Green business practices in the wood industry sector – A review
Creators: name: Roos, A.
name: Nuutinen, T.
name: Nyrud, A.Q.
name: Perttula, S.
name: Riala, M.
name: Räty, T.
name: Tellnes, L.
name: Toppinen, A.
name: Lei Wang, L.
name: Blažková, S.
name: Roos, A.
name: Nuutinen, T.
name: Nyrud, A.Q.
name: Perttula, S.
name: Riala, M.
name: Räty, T.
name: Tellnes, L.
name: Toppinen, A.
name: Lei Wang, L.
name: Blažková, S.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Wood industry
subject: supply chain management
subject: green marketing
subject: sustainable business

description: Environmental aspects of the wood product supply chain have been on the agenda for a couple of decades now. It is claimed that unsustainable forestry practices may damage biodiversity and the provision of forest ecosystem services, while wood is simultaneously perceived as a renewable material with a comparatively low carbon footprint. As is the case in other sectors, the role of the customer for fostering greener industry processes has also been highlighted, e.g. in forest certification. The development of even more environmentally friendly processes relates closely to how they are implemented and viewed among actors in the forest supply chain. The research on green practices in the wood industries has not been thoroughly collected and reviewed. An assessment of the present knowledge on the matter is needed to establish the state of the art and find approaches for future research efforts. This paper is an attempt to review and reflect upon the published business oriented research on green supply chains for wood products. The study is based on articles retrieved in relevant databases and we focus on how the literature has developed the main focus, approaches and main results. Many studies have investigated end-consumer preferences for eco-labeled wood products, mainly in North America and Europe, while fewer are oriented toward e.g. communication of green properties or business to business relations. The article provides an overview of problems that have been covered by research and identifies ‘white spots’ where knowledge still is sparse. Finally, we summarize main findings, based on the review, and suggest strategies to increase the industry and societal relevance of the research on this topic area.
Sahyādrikhaṇḍ Censored
Creators: name: RODRIGUES, TENSING CARLOS
Publisher: name: figshare
Year: 2019
Subjects: subject: History
subject: Anthropology
subject: FOS: Sociology
subject: Archaeology
subject: Sociology

description: Mahādēv’s response to Skand’s question about the gōtr of these brāhmaṇ could be important; the karhāḍē bramhan, says Mahādēv, are of atri, kauśika, vatsa, hārita, śāṇdilya and mānḍavya gōtr. Comparing that with the gōtr of the sārasvat brāhmaṇ according to SHK : bhārdvaj, kauśik, vats, kaunḍinya, kaśyap, vasiṣṭh, bhārgava, viśvamitr, gautam and atri, both the sārasvat and the karhāḍē brāhmaṇ belong to the same ethnic stock. Therefore it is reasonable to suppose that the sārasvat-karhāḍē hostility as portrayed in SHK does not lie in ethnic differences.
The history of the karhāḍē brāhmaṇ is far from clear; however the extant records, though scarce, suggest that the rivalry between the two was largely on account of priestly posts and privileges.
The Pion Light-Cone Wave Function Phi_pi on the lattice: a partonic signal?
Creators: name: Abada, A.
name: Boucaud, Ph.
name: Herdoiza, G.
name: Leroy, J. P.
name: Micheli, J.
name: Pene, O.
name: Rodriguez-Quintero, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We determine the conditions required to study the pion light-cone wave function Phi_pi with a new method: a direct display of the partons constituting the pion. We present the preliminary results of a lattice computation of Phi_pi following this direction. An auxiliary scalar-quark is introduced. The spectroscopy of its bound states is studied. We observe some indications of a partonic behavior of the system of this scalar-quark and the anti-quark.
description: 3 pages, 4 figures, Lattice2001(matrixelement)