cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An accurate analytic He-H2 potential energy surface from a greatly expanded set of ab initio energies
Creators: name: Boothroyd, Arnold I.
name: Martin, Peter G.
name: Peterson, Michael R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The interaction potential energy surface (PES) of He-H2 is of great importance for quantum chemistry, as the simplest test case for interactions between a molecule and a closed-shell atom. It is also required for a detailed understanding of certain astrophysical processes, namely collisional excitation and dissociation of H2 in molecular clouds, at densities too low to be accessible experimentally. A new set of 23703 ab initio energies was computed, for He-H2 geometries where the interaction energy was expected to be non-negligible. These have an estimated rms "random" error of about 0.2 millihartree and a systematic error of about 0.6 millihartree (0.4 kcal/mol). A new analytic He-H2 PES, with 112 parameters, was fitted to 20203 of these new ab initio energies (and to an additional 4862 points generated at large separations). This yielded an improvement by better than an order of magnitude in the fit to the interaction region, relative to the best previous surfaces (which were accurate only for near-equilibrium H2 molecule sizes). This new PES has an rms error of 0.95 millihartree (0.60 kcal/mole) relative to the the 14585 ab initio energies that lie below twice the H2 dissociation energy, and 2.97 millihartree (1.87 kcal/mole) relative to the full set of 20203 ab initio energies (the fitting procedure used a reduced weight for high energies, yielding a weighted rms error of 1.42 millihartree, i.e., 0.89 kcal/mole). These rms errors are comparable to the estimated error in the ab initio energies themselves; the conical intersection between the ground state and the first excited state is the largest source of error in the PES.
description: (44 pages, including 13 figures) error in Eq. (9) has been corrected; Fortran PES, ab initio data available at http://www.cita.utoronto.ca/~boothroy/bmp02.html
Thoracophorus costalis
Creators: name: Ferro, Michael L.
name: Gimmel, Matthew L.
name: Harms, Kyle E.
name: Carlton, Christopher E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Thoracophorus
Thoracophorus costalis

description: Thoracophorus costalis (Erichson) (Fig. 36)
 Range: throughout eastern North America: New Jersey to Florida, west to Louisiana and Illinois.
 Habitat: under bark, in dead wood, forest litter. Collection Method: sifting/Berlese litter, debris, and dead wood. Biology: unknown. Present Study: significantly higher abundance in CWD5, secondary forest, and spring. References: Horn 1871 (as Glyptoma costale Erichson, figure and key to common species in North America); Blatchley 1910; Notman 1920; Irmler 1985; Downie and Arnett 1996 (figure is not T. costalis); Peck and Thomas 1998; Ferro and Gimmel 2011.
description: Published as part of Ferro, Michael L., Gimmel, Matthew L., Harms, Kyle E. & Carlton, Christopher E., 2012, Comparison of the Coleoptera communities in leaf litter and rotten wood in Great Smoky Mountains National Park, USA, pp. 1-58 in Insecta Mundi 2012 (259) on page 21, DOI: 10.5281/zenodo.5175113
MOESM4 of Aldehyde dehydrogenase 2 activity and aldehydic load contribute to neuroinflammation and Alzheimer’s disease related pathology
Creators: name: Joshi, Amit
name: Wassenhove, Lauren
name: Logas, Kelsey
name: Paras Minhas
name: Andreasson, Katrin
name: Weinberg, Kenneth
name: Che-Hong Chen
name: Mochly-Rosen, Daria
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 4: Figure S4. ALDH2*2/2* deficient primary neurons are more sensitive to ethanol-induced toxicity relative to WT primary neurons. a) Mitochondrial membrane potential using TMRM in primary neurons in the presence or absence of Alda-1 (20 μM/24 h; 50 mM Ethanol). b) Measurement of mitochondrial ROS using MitoSOX™ in primary neurons, treated as in B. c) Caspase-3 activity was determined in total lysates using a fluorometric assay based on the cleavage of substrate DEVD-AFC in primary neurons in the presence or absence of Alda-1 (20 μM/24 h; 50 mM Ethanol). d) Levels of LC3B were determined in total lysates by immunoblotting in primary neurons in the presence or absence of Alda-1 (20 μM/24 h; 50 mM Ethanol). β-actin was used as loading control. Protein levels were quantified and represented as fold change of WT Veh. e) Levels of TOM20 were determined in total lysates by immunoblotting in primary neurons in the presence or absence of Alda-1 (20 μM/24 h; 50 mM Ethanol). β-actin was used as loading control. Protein levels were quantified and represented as fold change of WT Veh. f) Levels of p53 were determined in total lysates by immunoblotting in primary neurons in the presence or absence of Alda-1 (20 μM/24 h; 50 mM Ethanol). β-actin was used as loading control. Protein levels were quantified and represented as fold change of WT Veh. g) Levels of phosphorylated JNK (Thr183/Tyr185) were determined in total lysates by immunoblotting in primary neurons in the presence or absence of Alda-1 (20 μM/24 h; 50 mM Ethanol). β-actin was used as loading control. Protein levels were quantified and represented as fold change of WT Veh. Data information: Mean, standard deviation, and p-values are shown. Results are presented as percent/ fold of control. n = 3–4 independent biological replicates; probability by one-way ANOVA (with Holm-Sidak post hoc test).
Simulating Returns to Alternative Crop Mixes in Northeastern Louisiana
Creators: name: Deliberto, Michael
name: Salassi, Michael
name: Guidry, Kurt
name: Deliberto, Michael
name: Salassi, Michael
name: Guidry, Kurt
Publisher: name: Unknown
Year: 2013
Subjects: subject: Production Economics
subject: volatility in commodity prices
subject: rising production costs
subject: farm profitability

description: Rising production costs and volatility in commodity prices have forced agricultural producers to diversify their farm acreage as a means of increasing farm profitability. A financial farm-level simulation model is constructed to examine net returns over total variable production costs per rotational acre for a representative corn, cotton, and soybean farming operation located in the Mississippi River delta region of Louisiana. Results indicate that a predominant corn followed by a corn-soybean crop mix generates the highest net returns above variable costs to the producer when harvest month futures prices are considered with respect to simulated input parameters and expected yields.
title: Impact of Electronic Trading Platforms on the Brokered Interdealer Market for Government of Canada Benchmark Bonds
Creators: name: Khan, Natasha
Publisher: name: Bank of Canada
Year: 2007

description: This study examines the impact of increased transparency, brought about by the introduction of three electronic trading systems, on the brokered interdealer market for Government of Canada benchmark securities. Using the CanPX dataset for the 2-, 5-, 10-, and 30-year benchmarks, the paper finds some evidence of decreased bid-ask spreads for the 30-year benchmark in the months following the introduction of the electronic platforms. Bid-ask spreads are not significantly different in the pre- and post-transparency periods for the 2-, 5- or 10-year benchmarks. The price-impact coefficient, calculated using dollar value as a measure of order flow, also decreased in the post-event period for the 30-year benchmark but is not statistically different for any of the other benchmarks. Overall, there is little evidence that liquidity improved or was lowered by the introduction of the electronic systems.
description: L'auteure examine l'incidence que la hausse de la transparence due à l'implantation de trois systèmes de négociation électroniques a eue sur le marché intercourtiers des titres de référence du gouvernement canadien. D'après les données de CanPX relatives aux obligations de référence à 2, 5, 10 et 30 ans, les écarts entre les cours acheteur et vendeur des obligations à 30 ans ont diminué dans les mois qui ont suivi la mise en place des plateformes électroniques; toutefois, l'avènement de celles-ci n'a pas eu d'effet notable sur les écarts acheteur-vendeur des obligations des trois autres échéances. Même constat pour le coefficient qui sert à quantifier l'incidence du flux d'ordres (mesuré en dollars) sur les prix : il a baissé dans le cas des obligations à 30 ans, mais il n'est significativement différent pour aucune des autres échéances. Somme toute, il y a peu d'indices que l'introduction de systèmes électroniques ait entraîné une amélioration ou une détérioration de la liquidité.
Silicone Spandrel Glass Coatings: Mitigating Glass Breakage Risk from Thermal and Other Stresses
Creators: name: Fronsoe, Chris
name: Krytenberg, Timothy
name: Vockler, Kris
name: Swanson, John
name: Carbary, Lawrence
name: Barry, Chris
name: Hoffman, Stephane
name: Torok, George
name: Norville, Scott
name: Blanchet, Samir
Publisher: name: Challenging Glass Conference Proceedings
Year: 2018

description: Curtain wall design commonly uses insulating glass units for vision and spandrel glazing to provide better visual harmonization of building façade glass. Risks with this design approach include higher thermal stresses, especially when low-emissivity coatings are used on insulating glass units in spandrel areas. Ceramic enamel frit – commonly used to opacify spandrel glass – is known to induce a bending strength reduction of up to 50%. The ability of ceramic enamel frit coated glass to resist thermal stress is similarly reduced. Multiple incidences of thermal stress related fracture have occurred with heat-strengthened, ceramic enamel frit opacified spandrel glass. An increased chance of spontaneous breakage, by nickel sulfide inclusions, may occur if ceramic enamel frit opacified spandrel glass is fully-tempered to withstand the thermal stresses that it is exposed to. Silicone spandrel glass coatings have been examined as a solution to prevent the strength reduction in heat-treated glass when ceramic enamel frit is applied as an opacifier. Four-point bending tests were used to investigate the flexural strength of coated heat-strengthened and fully-tempered glass. Ball drop testing was used to investigate the impact resistance of coated fully-tempered glass. Test data shows silicone coatings have no adverse effect on the flexural strength or impact resistance of the substrate and, in some instances, improve it. Therefore, silicone opacifiers do not reduce the resistance to thermal stress of heat-treated glass. These coatings also provide fallout protection in accordance with ASTM C1048 (ASTM, 2012). This suggests using a silicone opacifier on heat-treated spandrel glass could greatly reduce the risk of fracture resulting from thermally induced tensile stress, flexural stress, and impact related glass breakage in addition to reducing risk of injury from fallout if breakage occurs.
description: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
Measuring Economies of Size with Expense Ratios
Creators: name: Langemeier, Michael R.
name: Langemeier, Michael R.
Publisher: name: Unknown
Year: 2013
Subjects: Production Economics
Productivity Analysis

description: This paper examines the relationship between three expense ratios: total expense ratio; adjusted total expense ratio; and economic total expense ratio; and discusses economies of size for a sample of Kansas farms. The total expense ratio and the adjusted total expense ratios, though commonly used to examine financial efficiency, are not as good of indicators of economies of size as the economic total expense ratio which includes opportunity costs on unpaid operator and family labor, and farm equity. Using the economic total expense ratio, cost per dollar of value of farm production for farms with an average value of farm production greater than $1,000,000 was 52 percent and 29 percent lower than it was for farms with an average value of farm production less than $100,000, and for farms with an average value of farm production between $100,000 to $250,000, respectively. Results confirm previous literature that indicated long-run cost curves for production agriculture are L-shaped.
Machaerodes carinatus
Creators: name: Ferro, Michael L.
name: Gimmel, Matthew L.
name: Harms, Kyle E.
name: Carlton, Christopher E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Machaerodes
Machaerodes carinatus

description: Machaerodes carinatus (Brendel) (Fig. 50)
 Range: eastern North America: Pennsylvania to Georgia, west to Ohio. Habitat: pine, oak, rhododendron, and beech leaf litter. Collection Method: sifting/Berlese litter. Biology: unknown, members of this subfamily are predacious. Present Study: significantly higher abundance in leaf litter and primary forest, indifferent to season. References: Park 1953; Chandler 1990b, 1994; Downie and Arnett 1996; Newton et al. 2001.
 Mipseltyrus nicolayi Park (Fig. 51)
 Range: North Carolina, Tennessee. Habitat: deep leaf mold in rhododendron thickets. Collection Method: sifting/Berlese litter. Biology: unknown, wingless, members of this subfamily are predacious.
 Present Study: significantly higher abundance in leaf litter, primary forest, and spring. References: Park 1953.
description: Published as part of Ferro, Michael L., Gimmel, Matthew L., Harms, Kyle E. & Carlton, Christopher E., 2012, Comparison of the Coleoptera communities in leaf litter and rotten wood in Great Smoky Mountains National Park, USA, pp. 1-58 in Insecta Mundi 2012 (259) on page 23, DOI: 10.5281/zenodo.5175113
MOESM2 of Aldehyde dehydrogenase 2 activity and aldehydic load contribute to neuroinflammation and Alzheimer’s disease related pathology
Creators: name: Joshi, Amit
name: Wassenhove, Lauren
name: Logas, Kelsey
name: Paras Minhas
name: Andreasson, Katrin
name: Weinberg, Kenneth
name: Che-Hong Chen
name: Mochly-Rosen, Daria
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Computational Biology

description: Additional file 2: Figure S2. ALDH2 plays a critical role in regulating cell health in Alzheimer’s disease patient fibroblast. a) Mitochondrial ROS measured using MitoSOX™ in 2 control and 2 AD patient-derived fibroblasts in the presence or absence of Alda-1 (20 μM) 48 h after transfection with ALDH2*2. b) Cellular ATP levels measured using CellTiter-Glo Luminescent Cell Viability kit in 2 control and 2 AD patient-derived fibroblasts in the presence or absence of Alda-1 (20 μM) 48 h after transfection with ALDH2*2. Data information: Mean, standard deviation, and p-values are shown. Results are presented as fold change. n = 3–7 independent biological replicates; probability by one-way ANOVA (with Holm-Sidak post hoc test).
title: 03_0778
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Investigating the Energy Efficiency, Environmental and Daylighting Performance of Coated Glazing
Creators: name: Eisazadeh, Nazanin
name: Allacker, Karen
name: De Troyer, Frank
Publisher: name: Challenging Glass Conference Proceedings
Year: 2018

description: Facades are a crucial interface between exterior and interior conditions and greatly influence the architectural quality of buildings. Glass plays an important role in the building envelope by providing daylight, views and ventilation and hence can contribute significantly to indoor environmental quality and impact occupants’ comfort and well-being. Glass also plays an important role in the energy balance of the envelope and hence in both energy loads and environmental performance of a building. In order to avoid high energy consumption, reduce environmental impact and increase the quality of the space selecting the appropriate size and type of glazing along with the orientation and shading based on the building’s function, the climatic conditions, site and occupants’ needs are a fundamental part of early design stage decisions and are difficult to change later on. The challenge is to improve the building quality by providing a balance between energy efficiency, comfort and saving resources. To reduce energy consumption through glazing taking into account the thermal insulating properties is insufficient, it is also necessary to consider the coatings impact on the physical properties of glass regarding radiation. Coatings are often used to improve the thermal insulation, solar control, acoustic insulation of glazing in order to reduce heat loss, maximize solar gains in winter and minimize it in summer and improve indoor environmental conditions. Multiple configurations of coatings are available on the market to date. The goal of our study is to determine the impact of coated glazing on the energy performance, daylighting and the environmental performance of buildings where occupants spend substantial time inside. This paper incorporates an integrated performance analysis method and presents an energy analysis, daylighting and a life cycle assessment (LCA) study of several coated glazing for patient rooms in Belgium.
description: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
title: Do Firms Adjust Toward a Target Leverage Level?
Creators: name: Xu, Zhaoxia
Publisher: name: Bank of Canada
Year: 2007

description: This paper studies capital structure adjustment mechanisms of firms that experience substantial changes in leverage. Adjustments appear to be asymmetric among firms with large increases and those with large decreases in debt ratios. The different adjustments are not due to differences in leverage targets or industry distributions between the samples. Speeds of adjustment are found to be affected by market timing opportunities. The persistence of equity market timing opportunities slows some firms' rebalancing process.
description: L'auteure examine les mécanismes d'ajustement de la structure du capital des entreprises qui subissent d'importantes modifications du levier financier. Ces entreprises s'ajustent à des rythmes différents selon que leur ratio d'endettement augmente ou diminue beaucoup. Cette asymétrie du rythme d'ajustement ne résulte pas de la présence d'écarts entre les ratios cibles d'endettement ni de différences dans la composition sectorielle des échantillons. La vitesse de l'ajustement apparaît plutôt influencée par les possibilités avantageuses de financement sur les marchés boursiers. Dans certaines entreprises, la persistance de ces possibilités ralentit le rééquilibrage.
Melitaea phoebe
Creators: name: Russell, P. J. C.
name: Bartolozzi, L.
name: Hawkins, R. L.
name: Tennent, W. J.
name: Léger, T.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy

description: Melitaea phoebe mod. nimbula Higgins, 1941
[TL: Asturian Mountains 4000 ft. (example illustrated by HIGGINS [Plate 14, fig. 12] from Espinama, Picos de Europa, Spain, June 30 ‘[19]35). In the NHM, London, there are 10 males and 2 females in the Lionel Higgins collection, captured on 30- VI-1935, the elevation is not given on the data labels but HIGGINS (1941: 337) stated that they were taken at 4000 ft. (= circa 1225 m). The rather acute forewing apices, club shaped antenna and black submarginal markings in some but not all specimens touching the intervening veins suggest that they are M. phoebe and not M. ornata (Figs 18a, b). The labels on the pin of the holotype are shown in Fig. 18c. This name was overlooked by VAN OORSCHOT & COUTSIS (2014) but RUSSELL & TENNENT (2016: 50, note 58) suggested it was M. phoebe. The subspecies is included here to demonstrate that submarginal markings can be confusing. We do not regard our identification as conclusive, since the holotype and some of the syntypes exhibit some characters of M. ornata and this population would benefit from further study.
description: Published as part of Russell, P. J. C., Bartolozzi, L., Hawkins, R. L., Tennent, W. J. & Léger, T., 2020, Designation of lectotypes for some Spanish and other western European Melitaea taxa, some with mixed syntypic series of M. phoebe ([Denis & amp; Schiffermüller], 1775) and M. ornata Christoph, 1893 (Lepidoptera: Nymphalidae), pp. 449-472 in SHILAP Revista de lepidopterología 48 (191) on page 456, DOI: 10.57065/shilap.369
title: Rediscounting Under Aggregate Risk with Moral Hazard
Creators: name: Chapman, James
name: Martin, Antoine
Publisher: name: Bank of Canada
Year: 2007

description: Freeman (1999) proposes a model in which discount window lending and open market operations have different effects. This is important because in most of the literature, these policies are indistinguishable. However, Freeman's argument that the central bank should absorb losses associated with default to provide risk-sharing stands in stark contrast to the concern that central banks should limit their exposure to credit risk. We extend Freeman's model by introducing moral hazard. With moral hazard, the central bank should avoid absorbing losses and Freeman's argument breaks down. However, we show that policies resembling discount window lending and open market operations can still be distinguished in this new framework. The optimal policy is for the central bank to make a restricted number of creditors compete for funds. By restricting the number of agents, the central bank can limit the moral hazard problem. By making them compete with each other, the central bank can exploit market information that reveals the state of the economy.
description: Freeman (1999) propose un modèle qui permet de différencier les effets des opérations d'open market de ceux des prêts accordés au guichet de l'escompte. Il s'agit là d'une caractéristique importante, car la plupart des travaux de la littérature ne dissocient pas ces deux moyens d'intervention. L'argument de Freeman voulant que les banques centrales absorbent les pertes attachées aux défaillances pour mutualiser les risques tranche avec le souci de limiter l'exposition de ces institutions au risque de crédit. Les auteurs enrichissent le modèle de Freeman en y insérant un aléa moral. Cet élément incite les banques centrales à ne pas éponger les pertes et invalide l'argument de Freeman. Les auteurs montrent que leur modèle permet encore de distinguer l'incidence de politiques semblables aux opérations d'open market et à l'octroi de prêts au guichet de l'escompte. Pour les banques centrales, la politique optimale consiste à soumettre leurs fonds à la concurrence d'un groupe restreint de créanciers. Cette limitation du nombre des agents permet aux banques centrales de contenir l'aléa moral. La concurrence créée donne à celles-ci la possibilité d'exploiter l'information qui filtre des marchés sur l'état de l'économie.
Measurement of isoplanatic angle and turbulence strength profile from H-alpha images of the Sun
Creators: name: Subramanian, Saraswathi Kalyani
name: Rengaswamy, Sridharan
Publisher: name: Proceedings of AO4ELT7 conference 2023 - Editors: Thierry Fusco and Benoit Neichel
Year: 2023
Subjects: ISOPLANATIC PATCH
DAY
TIME TURBULENCE PROFILING
LONG
EXPOSURE IMAGES

description: Adaptive Optics (AO) systems have become integral for ground-based astronomy. Based on the scientific case, there are various flavours of AO systems. Measuring the turbulence strength profile ($C_N^2(h)$) and other site characteristics is essential before selecting a site or implementing certain types of AO systems. We used an iterative deconvolution procedure on long-exposure H-$\\alpha$ images of the Sun to determine the isoplanatic patch size during the daytime. Then, we determined the relationship between turbulence along different directions and also obtained an analytical estimate of the $C_N^2(h)$ profile.
title: Where Does Price Discovery Occur in FX Markets?
Creators: name: D'Souza, Christopher
Publisher: name: Bank of Canada
Year: 2007

description: Trades in foreign exchange markets are initiated around the world and around the clock. This study illustrates that trades are more informative when initiated in a local country or in major foreign exchange centers like London and New York. Evidence suggests that informational asymmetries based on geography arise from the market making capacity of dealers and the customer order flow that dealers capture during regional business hours. Findings also show that market orders initiated in price-correlated FX markets are not informative. Transparency in quotes on electronic trading platforms may prevent informed participants from exploiting information across FX markets. Overall, these results are robust across different market conditions.
description: Vingt-quatre heures sur vingt-quatre, des opérations de change sont engagées aux quatre coins du monde. L'auteur montre que ces opérations renseignent davantage lorsqu'elles sont amorcées dans un pays dont la monnaie fait l'objet des transactions ou sur une grande place financière comme Londres ou New York. Certains éléments donnent à penser que les asymétries d'information associées aux lieux géographiques s'expliquent par la taille des transactions que peuvent conclure les cambistes et par les flux d'ordres qu'ils parviennent à capter pendant les heures ouvrables dans leur région d'attache. Les résultats obtenus montrent en outre que les ordres au mieux placés sur des marchés dont les prix sont corrélés n'apportent aucune information nouvelle. La transparence des cours indiqués sur les plateformes de négociation électronique peut dissuader les agents bien renseignés d'exploiter sur d'autres marchés des changes leurs informations. Dans l'ensemble, les résultats se vérifient sous différentes conditions de marché.
Pseudactium arcuatum
Creators: name: Ferro, Michael L.
name: Gimmel, Matthew L.
name: Harms, Kyle E.
name: Carlton, Christopher E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pseudactium
Pseudactium arcuatum

description: Pseudactium arcuatum (LeConte) (Fig. 52)
 Range: Alabama, Florida, Georgia, South Carolina, Tennessee. Habitat: forest floor debris, hardwood litter. Collection Method: sifting/Berlese litter. Biology: unknown, wingless, members of this subfamily are predacious. Present Study: significantly higher abundance in leaf litter, secondary forest, and fall. References: Carlton and Chandler 1994.
 Rhexius schmitti Brendel (Fig. 53)
 Range: eastern North America west to Oklahoma. Habitat: rotten wood, leaf litter. Collection Method: sifting/Berlese litter, UV light. Biology: unknown, members of this subfamily are predacious. Present Study: significantly higher abundance in leaf litter, secondary forest, and spring. References: Chandler 1990a; Downie and Arnett 1996.
description: Published as part of Ferro, Michael L., Gimmel, Matthew L., Harms, Kyle E. & Carlton, Christopher E., 2012, Comparison of the Coleoptera communities in leaf litter and rotten wood in Great Smoky Mountains National Park, USA, pp. 1-58 in Insecta Mundi 2012 (259) on page 23, DOI: 10.5281/zenodo.5175113
Cast Glass Components out of Recycled Glass: Potential and Limitations of Upgrading Waste to Load-bearing Structures
Creators: name: Bristogianni, Telesilla
name: Oikonomopoulou, Faidra
name: Justino De Lima, Clarissa
name: Veer, Fred
name: Nijsse, Rob
Publisher: name: Challenging Glass Conference Proceedings
Year: 2018

description: Although in theory glass can be endlessly remelted without loss in quality, in practice only a small percentage gets recycled, mainly by the packaging industry. Most of the discarded glass fails to pass the high quality standards of the prevailing glass industry -due to coatings, adhesives, other contaminants or incompatibility of the recipe- and ends up in the landfill. However, employing discarded glass in cast components for building applications can be a way to reintroduce this waste to the supply chain. Such components can tolerate a higher percentage of inclusions, without necessarily compromising their mechanical or aesthetical properties. This paper explores the potential but also the limitations of recycling glass in order to obtain load-bearing components. First, an overview is provided regarding which types of glass reach the recycling plants and the which not, arguing on the reasons behind this selection. Afterwards, a series of experiments is presented, exploring the possibilities of recycling everyday glass waste, from beer bottles and Pyrex® trays to mobile phone screens. Each type of glass waste is initially cast separately to define its flow capability and risk of crystallization. The above information is linked to the X-ray fluorescence (XRF) analyses of the samples prior to recycling. Then, the possibility to mix different glass recipes without fracturing is evaluated. The results point out the types of glass with potential in structural applications, and the overall feasibility of the concept.
description: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
Using globular clusters to test gravity in the weak acceleration regime
Creators: name: Scarpa, Riccardo
name: Marconi, Gianni
name: Gilmozzi, Roberto
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have carried out a study of the velocity dispersion of the stars in the outskirts of the globular cluster Omega Centauri, finding that the velocity dispersion remains constant at large radii rather than decrease monotonically. The dispersion starts to be constant for an acceleration of gravity of a = 2.1e-8 cm/s/s. A similar result is obtained reanalyzing existing data for the globular cluster M15 where the profile flattens out for a = 1.7e-8 cm/s/s. In both cases the acceleration is comparable to that at which the effect of dark matter becomes relevant in galaxies. Explanations for this result within Newtonian dynamics exist (e.g. cluster evaporation, tidal effects, presence of dark matter) but require ad hoc tuning of the relevant parameters in order to make in both clusters the dispersion profile flat starting exactly at the same acceleration. We suggest that this result, together with a similar one for Palomar 13 and the anomalous behavior of spacecrafts outside the solar system, may indicate a breakdown of Newton's law in the weak acceleration regime. Although not conclusive, these data prompt for the accurate determination of the internal dynamics of as many GCs as possible.
description: Accepted for publication on A&A Letters. Four pages + 2 figures
Dimensioning Silicone Joints Used in Bomb Blast Resistant Facade Systems
Creators: name: Descamps, Pierre
name: Durbecq, Sebastien
name: Hazey, Valérie
name: Chabih, Mahmoud
name: VanWassenhove, Georgette
Publisher: name: Challenging Glass Conference Proceedings
Year: 2018

description: In the design of blast resistant glazing systems, gluing the laminate glass to the window frame with a structural adhesive is an attractive option to maintain it attached to the frame while, because the large deflection of the broken laminate, it could potentially escape from a mechanical fixing. Actually, it does not exist a simple method that provides guidelines to the facade maker to design a joint that will resist to a blast. The complexity to develop such a method is due to 1) the blast load is time dependent and the phase shift between the external load and the natural mode of vibration of the pane must be included in the model 2) modeling the deformation of a laminated glass after breakage of glass plies is complex. The intend of this study is not to propose the most accurate description of both the laminate and the joint deformation under a blast load but to identify which assumptions could be possibly made to simplify the problem and make possible the derivation of a simplified joint dimensioning method.
description: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
Field emission microscopy of carbon nanotube fibers: evaluating and interpreting spatial emission
Creators: name: Posos, Taha Y.
name: Fairchild, Steven B.
name: Park, Jeongho
name: Baryshev, Sergey V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we quantify field emission properties of cathodes made from carbon nanotube (CNT) fibers. The cathodes were arranged in different configurations to determine the effect of cathode geometry on the emission properties. Various geometries were investigated including: 1) flat cut fiber tip, 2) folded fiber, 3) looped fiber and 4) and fibers wound around a cylinder. We employ a custom field emission microscope to quantify I-V characteristics in combination with laterally-resolved field-dependent electron emission area. Additionally we look at the very early emission stages, first when a CNT fiber is turned on for the first time which is then followed by multiple ramp-up/down. Upon the first turn on, all fibers demonstrated limited and discrete emission area. During ramping runs, all CNT fibers underwent multiple (minor and/or major) breakdowns which improved emission properties in that turn-on field decreased, field enhancement factor and emission area both increased. It is proposed that breakdowns are responsible for removing initially undesirable emission sites caused by stray fibers higher than average. This initial breakdown process gives way to a larger emission area that is created when the CNT fiber sub components unfold and align with the electric field. Our results form the basis for careful evaluation of CNT fiber cathodes for dc or low frequency pulsed power systems in which large uniform area emission is required, or for narrow beam high frequency applications in which high brightness is a must.
The Connection Between Cash Rents and Land Values
Creators: name: Ibendahl, Gregory
name: Griffin, Terry
name: Ibendahl, Gregory
name: Griffin, Terry
Publisher: name: Unknown
Year: 2013
Subjects: subject: Demand and Price Analysis
subject: Productivity Analysis
subject: cash rents
subject: land values
subject: ratio of land values to cash rents

description: The last few years have seen big increases in land values. Cash rents have also increased but perhaps at a slower rate than land values. This paper examines the ratio of land values to cash rents to determine how cash rents have changed in relation to land value changes. This ratio is important because it helps indicate whether cash rents are a cost effective way of controlling farmland relative to purchasing the land. Results indicate cash rents lag behind changes in land prices when land prices are increasing but not when land prices are decreasing. However, this relationship does not always hold.
title: Testing Uncovered Interest Parity: A Continuous-Time Approach
Creators: name: Diez de los Rios, Antonio
name: Sentana, Enrique
Publisher: name: Bank of Canada
Year: 2007

description: Nowadays researchers can choose the sampling frequency of exchange rates and interest rates. If the number of observations per contract period is large relative to the sample size, standard GMM asymptotic theory provides unreliable inferences in UIP regression tests. We specify a bivariate continuous-time model for exchange rates and forward premia robust to temporal aggregation, unlike the discrete time models in the literature. We obtain the UIP restrictions on the continuous-time model parameters, which we estimate efficiently, and propose a novel specification test that compares estimators at different frequencies. Our empirical results based on correctly specified models reject UIP.
description: De nos jours, les chercheurs peuvent choisir la fréquence d'échantillonnage des taux de change et des taux d'intérêt. Si la période couverte par le contrat compte un nombre d'observations élevé par rapport à la taille de l'échantillon, le recours à une approximation asymptotique pour tester l'hypothèse de parité des taux d'intérêt non couverte à l'aide de la méthode des moments généralisés peut conduire à des conclusions fallacieuses. Le modèle en temps continu que définissent les auteurs pour l'évolution du taux de change et du report n'est pas sensible à l'agrégation temporelle, contrairement à ceux en temps discret que l'on trouve dans la littérature. Les auteurs obtiennent des estimations efficaces des paramètres du modèle en temps continu, en testant les restrictions associées à la parité des taux d'intérêt non couverte, et proposent un test de spécification novateur qui permet de comparer les estimateurs à différentes fréquences. Les résultats empiriques tirés de l'estimation de modèles bien spécifiés conduisent au rejet de la parité des taux non couverte.
Manipulating magnetic fields in inaccessible regions by negative magnetic permeability
Creators: name: Mach-Batlle, Rosa
name: Bason, Mark G.
name: Del-Valle, Nuria
name: Prat-Camps, Jordi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The control of magnetic fields underpins a wide variety of cutting-edge technologies, ranging from the guiding of micro-robots for medical applications to the trapping of atoms for quantum experiments. Relying on different arrangements of coils, these technologies demand advances in the manipulation of magnetic fields at a distance from the sources that generate them. Here, we present a strategy for remotely shaping magnetic fields based on active magnetic metamaterials with negative permeability and we theoretically and experimentally demonstrate the possibility of emulating and cancelling magnetic sources at distance. Our strategy provides magnetic field focusing deep into physically inaccessible volumes where neither sources of magnetic field nor magnetic materials can be placed.
description: main text: 5 pages, 4 figures; supplementary material: 18 pages, 13 figures, 1 table
Silicone Joint Dimensioning Calculation Methods
Creators: name: Descamps, Pierre
name: Hayez, Valérie
Publisher: name: Challenging Glass Conference Proceedings
Year: 2018

description: Historically, silicone joint dimensioning is calculated with a simplified equation implemented in various standards for structural glazing. This equation assumes homogeneous stress distribution along the sealant bite whilst high local stress peaks, structure deformation or material ageing are included in a global safety factor. Safeguards such as a maximum authorized deflection (1%) and aspect ratio to respect (between 1 and 3) have been given to ensure the validity of the used equations. However new trends in commercial buildings such as the use of large dimensions glass panes or stronger engineering performance requirements such as high windloads above 5000Pa lead to the non-respect of these guidelines and the impossibility to use the simplified equation. An improved mathematical relationship making a direct correspondence between a joint included in a façade system and the behavior of a test piece was recently proposed by the authors. The goal of this article is to further validate the proposed relationship by confronting predictions with physical measurements on various test samples and the results from FEA modeling. The domain of validity of the simplified equation and the improved equation will be developed.
description: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
Numerical Modelling of Adhesive Connections Including Cohesive Damage
Creators: name: Bedon, Chiara
name: Machalická, Klára
name: Eliášová, Martina
name: Vokáč, Miroslav
Publisher: name: Challenging Glass Conference Proceedings
Year: 2018

description: Adhesive connections offer a number of benefits in structural applications, especially in the case of brittle adherends such as glass. There, a multitude of materials can be used to provide structural bonding between glass and/or metal components, giving evidence of different mechanical behaviours as well as structural performances. This paper reports on a Finite Element numerical investigation carried out on small-scale adhesive joint specimens. Taking advantage of a past experimental study performed at CTU in Prague - focused on both material tests and small-scale adhesive connections subjected to shear loading - the numerical modelling approach is validated by taking into account a selection of shear tests on glass-to-steel adhesive joints. The typical specimen is composed of two glass plates bonded to two steel plates with a gap between them and four adhesive joints per one specimens. Finite Element numerical analyses are presented, as obtained from full 3D solid models representative of the specimens components. While careful consideration is spent for the mechanical description of materials, a key role is indeed assigned to cohesive surface interactions, being representative of any possible damage occurring at the interface between the adhesive layers and the bonded substrates. The sensitivity of FE results to input parameters responsible of damage initiation and propagation is discussed, based on past experimental observations.
description: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
Permanent Hydrothermal Exposure on Load-bearing Adhesives in Glass Constructions
Creators: name: Aßmus, Elisabeth
name: Popp, Christian
name: Weller, Bernhard
Publisher: name: Challenging Glass Conference Proceedings
Year: 2018

description: The German research team FABIG develops a bioenergy building skin including modules of glass which contain a liquid medium processing biomass. Inside the facade modules, load-bearing adhesives were applied that are subject to permanent water exposure. Water is known as a major hazard for adhesives because water molecules diffuse into the adhesive polymer matrix and into the interface between adhesive and substrate. As a result, material characteristics as well as the adhesion properties may change significantly. Additionally, the adhesive is exposed to conventional aging in building skin as the temperature ranges between -20°C and +80°C. This paper focuses on the effect of water on load-bearing adhesives in a bioenergy facade. It evaluates potential adhesives for permanent hydrothermal application. The paper introduces water as a key aging medium. Furthermore, it describes the construction of an innovative flat plate photobioreactor as an example for load-bearing adhesives under permanent hydrothermal treatment. The conditions inside the photobioreactor, which lead to particular mechanical, physical and chemical loads for constructive elements in comparison with conventional facade systems are presented. The main part describes the results of experimental tensile tests on the adhesive short-term behavior considering temperature conditioning and chemical treatment with substances emerging from bio-processing like storing in acid, base and hydrogen peroxide solution. The paper concludes with an outlook on future research work of the team including ARUP Deutschland GmbH (Berlin, Germany), ADCO Technik GmbH (Rostock, Germany), SSC GmbH (Hamburg, Germany) and Technische Universität Dresden (Dresden, Germany).
description: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
BAT AGN Spectroscopic Survey -- XIX: Type 1 versus Type 2 AGN dichotomy from the point of view of ionized outflows
Creators: name: Rojas, A. F.
name: Sani, E.
name: Gavignaud, I.
name: Ricci, C.
name: Lamperti, I.
name: Koss, M.
name: Trakhtenbrot, B.
name: Schawinski, K.
name: Oh, K.
name: Bauer, F. E.
name: Bischetti, M.
name: Boissay-Malaquin, R.
name: Bongiorno, A.
name: Harrison, F.
name: Kakkad, D.
name: Masetti, N.
name: Ricci, F.
name: Shimizu, T.
name: Stalevski, M.
name: Stern, D.
name: Vietri, G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed study of ionized outflows in a large sample of ~650 hard X-ray detected AGN. Using optical spectroscopy from the BAT AGN Spectroscopic Survey (BASS) we are able to reveal the faint wings of the [OIII] emission lines associated with outflows covering, for the first time, an unexplored range of low AGN bolometric luminosity at low redshift (z~0.05). We test if and how the incidence and velocity of ionized outflow is related to AGN physical parameters: black hole mass, gas column density, Eddington Ratio, [OIII], X-ray, and bolometric luminosities. We find a higher occurrence of ionized outflows in type 1.9 (55%) and type 1 AGN (46%) with respect to type 2 AGN (24%). While outflows in type 2 AGN are evenly balanced between blue and red velocity offsets with respect to the [OIII] narrow component, they are almost exclusively blueshifted in type 1 and type 1.9 AGN. We observe a significant dependence between the outflow occurrence and accretion rate, which becomes relevant at high Eddington ratios (> -1.7). We interpret such behaviour in the framework of covering factor-Eddington ratio dependence. We don't find strong trends of the outflow maximum velocity with AGN physical parameters, as an increase with bolometric luminosity can be only identified when including samples of AGN at high luminosity and high redshift taken from literature.
description: Accepted for publication in MNRAS, 15 pages, 19 figures, 1 table