cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Scheme to Unify Low-Power Accreting Black Holes - Jet-Dominated Accretion Flows and the Radio/X-Ray Correlation
Creators: name: Falcke, Heino
name: Koerding, Elmar
name: Markoff, Sera
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the evolution in power of black holes of all masses, and their associated jets, within the scheme of an accretion rate-dependent state transition. Below a critical value of the accretion rate all systems are assumed to undergo a transition to a state where the dominant accretion mode is optically thin and radiatively inefficient. In these significantly sub-Eddington systems, the spectral energy distribution is predicted to be dominated by non-thermal emission from a relativistic jet whereas near-Eddington black holes will be dominated instead by emission from the accretion disk. Reasonable candidates for such a sub-Eddington state include X-ray binaries in the hard and quiescent states, the Galactic Center (Sgr A*), LINERs, FR I radio galaxies, and a large fraction of BL Lac objects. Standard jet physics predicts non-linear scaling between the optically thick (radio) and optically thin (optical or X-ray) emission of these systems, which has been confirmed recently in X-ray binaries. We show that this scaling relation is also a function of black hole mass and only slightly of the relativistic Doppler factor. Taking the scaling into account we show that indeed hard and quiescent state X-ray binaries, LINERs, FR I radio galaxies, and BL Lacs can be unified and fall on a common radio/X-ray correlation. This suggests that jet domination is an important stage in the luminosity evolution of accreting black hole systems.
description: final version(3 new figures and a table), Astronomy & Astrophysics, accepted, A&A LaTex, 9 pages, 6 figures, also available at http://www.mpifr-bonn.mpg.de/staff/hfalcke/publications.html#powerunify
How does food supply respond to high and volatile international food prices? An empirical evaluation of inter- and intra- seasonal global crop acreage response
Creators: name: Haile, Mekbib G.
name: Kalkuhl, Matthias
name: Braun, Joachim Von
name: Haile, Mekbib G.
name: Kalkuhl, Matthias
name: Braun, Joachim Von
Publisher: name: Unknown
Year: 2013
Subjects: subject: Demand and Price Analysis
subject: Food Security and Poverty
subject: Land Economics/Use
subject: food price volatility
subject: acreage response
subject: price expectation
subject: land use
subject: food supply

description: Understanding how producers make decisions to allot acreage among crops and how decisions about land use are affected by changes in prices and their volatility is fundamental for predicting the supply of staple crops and, hence, assessing the global food supply situation. The innovations of the present paper are estimates of monthly (i.e. seasonal) versus annual global acreage response models for four staple crops: wheat, soybeans, corn and rice. We focus on the impact of (expected) crop prices, oil and fertilizer prices and market risks (price volatility and spikes) as main determinants for farmers’ decisions on how to allocate their land. Primary emphasis is given to the magnitude and speed of the allocation process. Estimation of intra-annual acreage elasticity is crucial for expected supply and for input demand, especially in the light of the recent short-term volatility in food prices. The econometric results indicate that global crop acreage responds to crop prices and price risks, input costs as well as a time trend. Depending on respective crop, short-run elasticities are about 0.05 to 0.15; price volatility tends to reduce acreage response as do price spikes on top of that. Comparison of the annual and the monthly acreage response elasticities suggests that acreage adjusts seasonally around the globe to new information and expectations. Given the seasonality of agriculture, time is of the essence for acreage response: the analysis indicates that acreage allocation is more sensitive to prices in spring than in winter and the response varies across months.
The response of global agricultural supply to prices and price variability: a panel data analysis
Creators: name: Haile, Mekbib G.
name: Kalkuhl, Matthias
name: Haile, Mekbib G.
name: Kalkuhl, Matthias
Publisher: name: Unknown
Year: 2013
Subjects: Demand and Price Analysis
Food Security and Poverty

description: This study investigates the responsiveness of global cropland to changes in output prices and the uncertainty therein. The study provides a global short- and long-term acreage and yield elasticity which hints at how major agricultural commodity producers respond to the recent high food prices and volatility. Using cross-country panel data for the period 1961-2010, this paper investigates the global supply impacts of output prices and their volatility. Besides providing updated estimates of supply responses to own and competing price expectations, it also estimates growth trends that are informative to policy in understanding the likely extensive and intensive margin changes because of crop price changes. Estimation of acreage response to input and output prices as well as output price volatilities is a necessary step but not sufficient to predict the global food supply effect of possible developments in output prices and their volatility. In addition to the acreage allocation response that agricultural producers make towards price changes, they also react to expected changes in terms of yield response. While acreage as well as yield responses to own output prices are positive, the response towards output price volatilities is modest. Thus, besides via acreage changes, the global food supply response to expected prices comes from yield changes, both affecting global food supply and food security.
Additional file 2 of Behaviours and attitudes in response to the COVID-19 pandemic: insights from a cross-national Facebook survey
Creators: name: Perrotta, Daniela
name: Grow, André
name: Rampazzo, Francesco
name: Cimentada, Jorge
name: Fava, Emanuele Del
name: Gil-Clavel, Sofia
name: Zagheni, Emilio
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: The English version of the questionnaire used in the study. (PDF 411 kB)
Shaping Your Organisation’s Narrative Infrastructure
Creators: name: Schulschenk, Jess
name: Bertels, Stephanie
Publisher: name: figshare
Year: 2019
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Stories matter, they have an enormous influence on decision-making in organisations. How often do you stop to reflect on the collection of stories that get told in your organisation and whether you might need to shift them to better embed sustainability?
 This guide builds on our work on Storytelling for Sustainability and is based on four years of research and over 100 interviews in twenty different global companies exploring the impact of organisational narratives and how change agents helped to shift them to better support strategic decision-making aligned with sustainability.
Constraining sterile neutrinos by CCSN at multiple detectors
Creators: name: Tang, Jian
Publisher: name: Zenodo
Year: 2021
Subjects: Low Energy Neutrinos

description: Parallel Contributed Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: Based on the wok in collaboration with Tse-Chun Wang, and Meng-Ru Wu arXiv: 2005.09168, JCAP 10 (2020) 038
description: {"references": ["JCAP 10 (2020) 038", "arXiv: 2005.09168"]}
Local Distributions and Rate Fluctuations in a Unified Scaling Law for Earthquakes
Creators: name: Corral, Alvaro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: A recently proposed unified scaling law for interoccurrence times of earthquakes [P. Bak et al., Phys. Rev. Lett. {\bf 88}, 178501 (2002)] is analyzed, both theoretically and with data from Southern California. We decompose the corresponding probability density into local-instantaneous distributions, which scale with the rate of earthquake occurrence. The fluctuations of the rate, characterizing the non-stationarity of the process, show a doubly power-law distribution and are fundamental to determine the overall behavior, described by a double power law as well.
description: 8 text pages but swift to read, 4 figures self-explained. In memoriam of Per Bak
Constraints on the mass-concentration relation of cold dark matter halos with 11 strong gravitational lenses
Creators: name: Gilman, Daniel
name: Du, Xiaolong
name: Benson, Andrew
name: Birrer, Simon
name: Nierenberg, Anna
name: Treu, Tommaso
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The mass-concentration relation of dark matter halos reflects the assembly history of objects in hierarchical structure formation scenarios, and depends on fundamental quantities in cosmology such as the slope of the primordial matter power-spectrum. This relation is unconstrained by observations on sub-galactic scales. We derive the first measurement of the mass-concentration relation using the image positions and flux ratios from eleven quadruple-image strong gravitational lenses (quads) in the mass range $10^{6} - 10^{10} M_{\odot}$, assuming cold dark matter. Our analysis framework includes both subhalos and line of sight halos, marginalizes over nuisance parameters describing the lens macromodel, accounts for finite source effects on lensing observables, and simultaneously constrains the normalization and logarithmic slope of the mass-concentration relation, and the normalization of the subhalo mass function. At $z=0$, we constrain the concentration of $10^{8} M_{\odot}$ halos $c=12_{-5}^{+6}$ at $68 \%$ CI, and $c=12_{-9}^{+15}$ at $95 \%$ CI. For a $10^{7} M_{\odot}$ halo, we obtain $68 \%$ ($95 \%$) constraints $c=15_{-8}^{+9}$ ($c=15_{-11}^{+18}$), while for $10^{9} M_{\odot}$ halos $c=10_{-4}^{+7}$ ($c=10_{-7}^{+14}$). These results are consistent with the theoretical predictions from mass-concentration relations in the literature, and establish strong lensing by galaxies as a powerful probe of halo concentrations on sub-galactic scales across cosmological distance.
description: fix typos, edit wording
K Kbar photoproduction and S-P wave interference
Creators: name: Bibrzycki, Lukasz
name: Lesniak, Leonard
name: Szczepaniak, Adam P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Results of a new analysis of the $K^+K^-$ photoproduction at two photon energies $E_γ= 4{GeV}$ and $5.65{GeV}$ with a particular emphasis on the $S$-wave production are presented. We show that the proper treatment of all the helicity components of the $S$- and $P$-waves enables one to eliminate the reported discrepancies in extraction of the $S$-wave photoproduction cross section from experimental data.
description: 25 pages, 5 figures, new predictions at 8 GeV added in Fig. 5
A choice-free cardinal equality
Creators: name: Shen, Guozhen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: Primary 03E10, 03E25

description: For a cardinal $\mathfrak{a}$, let $\mathrm{fin}(\mathfrak{a})$ be the cardinality of the set of all finite subsets of a set which is of cardinality $\mathfrak{a}$. It is proved without the aid of the axiom of choice that for all infinite cardinals $\mathfrak{a}$ and all natural numbers $n$, \[ 2^{\mathrm{fin}(\mathfrak{a})^n}=2^{[\mathrm{fin}(\mathfrak{a})]^n}. \] On the other hand, it is proved that the following statement is consistent with $\mathsf{ZF}$: there exists an infinite cardinal $\mathfrak{a}$ such that \[ 2^{\mathrm{fin}(\mathfrak{a})}<2^{\mathrm{fin}(\mathfrak{a})^2}<2^{\mathrm{fin}(\mathfrak{a})^3}
description: 12 pages
Smallholder Demand for Maize Hybrids and Selective Seed Subsidies in Zambia
Creators: name: Smale, Melinda
name: Birol, Ekin
name: Smale, Melinda
name: Birol, Ekin
Publisher: name: Unknown
Year: 2013
Subjects: Agricultural and Food Policy
Crop Production/Industries

description: Zambian farmers have long experience with maize hybrids and input subsidies. The successful development and diffusion of improved maize seed in Zambia during the 1970s–80s was supported by government commitment to parastatal grain and seed marketing and subsidized provision of services to maize growers. When this system was dismantled under fiscal duress, production of the nation’s staple food—maize—declined. In 2002, concerned that national food security might be jeopardized, the government reinstated subsidies for fertilizers and maize seed with the stated goal of building the resource base of smallholders. We test the hypothesis that the subsidy on hybrid seed use in Zambia is selectively biased both by the delivery mechanism and through self-selection of farmers who choose to exercise their claim. We find that the subsidy is a recursive determinant of seed demand but its recipients have more land, more income, and lower poverty rates. In 2010, we estimate that 14% of smallholders had a high predicted demand for hybrid seed but did not grow it—and were not reached by the program. This paper contributes to an emerging body of literature that documents the effects of the new generation of “smart” input subsidies in Africa, with a focus on seed (as compared to fertilizer), and a detailed exploration of demand segments.
title: Do Exchange Rates Affect the Capital-Labour Ratio? Panel Evidence from Canadian Manufacturing Industries
Creators: name: Leung, Danny
name: Yuen, Terence
Publisher: name: Bank of Canada
Year: 2005

description: Using industry-level data for Canadian manufacturing industries from 1981 to 1997, the authors find empirical evidence of a negative relationship between the capital-labour ratio and the user cost of capital relative to the price of labour. A 10 per cent increase in the user cost of the machinery and equipment (M&E) relative to the price of labour results in a 3.3 per cent decrease in the M&E-labour ratio in the long run. Assuming complete exchange rate pass-through into imported M&E prices, the maximum effect of a permanent 10 per cent depreciation in the exchange rate is a 5.2 per cent increase in the user cost of M&E, and a 1.7 per cent decline in the M&E-labour ratio. This result implies that the cumulative growth of the M&E-labour ratio during the 1991–97 period would have been 2.3 percentage points higher had the dollar not depreciated. This may appear to be significant, but, considering that M&E as a share of total capital and capital's share of nominal output are both approximately one-third, in terms of a simple growth accounting framework, the effect on labour productivity is small.
description: En utilisant des données sectorielles sur les industries manufacturières du Canada pour la période de 1981 à 1997, les auteurs obtiennent des résultats empiriques qui montrent la présence d'une relation négative entre le ratio capital/travail et le coût d'usage du capital par rapport au coût du travail. Une hausse de 10 % du coût d'usage des machines et du matériel (MM) comparativement au coût du travail entraîne une diminution de 3,3 % du ratio MM/travail à long terme. En supposant que les variations du taux de change sont pleinement transmises aux prix des machines et du matériel importés, une dépréciation permanente de 10 % du taux de change a comme effet maximal une augmentation de 5,2 % du coût d'usage des machines et du matériel, et une baisse de 1,7 % du ratio MM/travail. Ce résultat implique que la croissance cumulative du ratio MM/travail aurait été de 2,3 points de pourcentage plus élevée durant la période de 1991 à 1997, n'eût été la dépréciation du dollar canadien. Cet écart peut sembler considérable; cependant, comme les machines et le matériel représentent approximativement un tiers du capital total, et le capital, environ un tiers également de la production nominale, l'effet sur la productivité du travail est limité, selon un cadre simple de comptabilité de la croissance.
Distribution of infected mass in disease spreading in scale-free networks
Creators: name: Gallos, Lazaros K.
name: Argyrakis, Panos
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We use scale-free networks to study properties of the infected mass $M$ of the network during a spreading process as a function of the infection probability $q$ and the structural scaling exponent $γ$. We use the standard SIR model and investigate in detail the distribution of $M$, We find that for dense networks this function is bimodal, while for sparse networks it is a smoothly decreasing function, with the distinction between the two being a function of $q$. We thus recover the full crossover transition from one case to the other. This has a result that on the same network a disease may die out immediately or persist for a considerable time, depending on the initial point where it was originated. Thus, we show that the disease evolution is significantly influenced by the structure of the underlying population.
description: 7 pages, 3 figures, submitted to Physica A; Improved the discussion and shifted the emphasis on the distributions of figure 2. Because of this we had to change the title of the paper
Neutrino Masses and Mixings: Theoretical Challenges
Creators: name: Kopp, Joachim
Publisher: name: Zenodo
Year: 2021
Subjects: Challenges, Neutrino Interactions, New Neutrino Physics

description: Plenary Invited Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
Additional file 1 of Effects of person-environment fit of gender-role orientation on burnout, engagement and hair steroids as stress biomarkers among women
Creators: name: Wacker, Eva
name: Fischer, Axel
name: Schorlemmer, Julia
Publisher: name: figshare
Year: 2021
Subjects: subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Table S1. Descriptive statistics of predictors, work characteristics and age. Table S2. Descriptive statistics of health strains, hair steroids, and job engagement. Table S3. Pearson’s correlations with work characteristics. Table S4. Intercorrelations of work characteristics. Table S5. Regression models for work engagement. Table S6. P-E fit in Feminity as Moderator. Table S7. P-E fit in Masculinity as Moderator.
The Search for Extrasolar Earth-like planets
Creators: name: Seager, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The search for extrasolar Earth-like planets is underway. Over 100 extrasolar giant planets are known to orbit nearby sun-like stars, including several in multiple-planet systems. These planetary systems are stepping stones for the search for Earth-like planets; the technology development, observational strategies, and science results can all be applied to Earth-like planets. Stars much less massive than the sun the most common stars in our Galaxy are being monitored for the gravitational influence of Earth-like planets. Although Earth-like planets orbiting sun-like stars are much more difficult to detect, space missions are being built to detect them indirectly due to their effects on the parent star and to quantify fundamental factors such as terrestrial planet frequency, size distribution, and mass distribution. Extremely ambitious space programs are being developed to directly detect Earth-like planets orbiting sun-like stars, and must tackle the immense technological challenge of blocking out the light of the parent star, which is brighter than the planet by six to ten orders of magnitude. Direct detection of radiation from the planet is necessary for the definitive goal of the search for Earth-like planets: the study of atmospheric spectral signatures for signs of severe disequilibrium chemistry that could be indicative of biological activity. In addition to technological development, a growing flurry of scientific activity has begun to: understand terrestrial planet formation and terrestrial planet frequency; model terrestrial-like planet atmospheres and evolution; articulate the biological signatures of our own Earth; and even to study Earth as an extrasolar planet by observation and analysis of the spatially unresolved Earth.
description: 10 pages, invited review paper, Earth and Planetary Science Letters Frontiers, preprint version--see Journal ref for final version
Direct Neutrino Mass Measurements - Coherent Neutrino Scattering
Creators: name: Formaggio, Joseph A.
Publisher: name: Zenodo
Year: 2021
Subjects: neutrino challenges, New technologies for measuring neutrino masses, Neutrino coherent scattering

description: Plenary Invited Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
Історія церкви с.Янівка Богуславського (Канівського) повіту Київської губернії (кінець XVIII - початок ХХ ст.)
Creators: name: Вадим Борисов
name: Тетяна Борисова
Publisher: name: figshare
Year: 2019
Subjects: subject: 220401 Christian Studies (incl. Biblical Studies and Church History)
subject: FOS: Philosophy, ethics and religion

description: Борисов В.П., Борисова Т.А. Історія церкви с.Янівка Богуславського (Канівського) повіту Київської губернії (кінець XVIII - початок ХХ ст.) // Хронос,. зошит 6, Матетеріали засідання краєзнавчого клубу 16 травня 2017 р.,м. Біла Церква, с. 23-38
The low lying glueball spectrum
Creators: name: Szczepaniak, Adam P.
name: Swanson, Eric S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The complete low-lying positive charge conjugation glueball spectrum is obtained from QCD. The formalism relies on the construction of an efficient quasiparticle gluon basis for Hamiltonian QCD in Coulomb gauge. The resulting rapidly convergent Fock space expansion is exploited to derive quenched low-lying glueball masses with no free parameters which are in remarkable agreement with lattice gauge theory.
description: 11 pages
title: Efficiency and Economies of Scale of Large Canadian Banks
Creators: name: Allen, Jason
name: Liu, Ying
Publisher: name: Bank of Canada
Year: 2005

description: The authors measure the economies of scale of Canada's six largest banks and their costefficiency over time. Using a unique panel data set from 1983 to 2003, they estimate pooled translog cost functions and derive measures of relative efficiency and economies of scale. The disaggregation of the data allows the authors to model Canadian banks as producing multiple outputs, including non-traditional activities. Given the long time span of the data set, they also incorporate technological and regulatory changes in the banks' cost functions, as well as timevarying bank-specific effects. The authors' model leads them to reject constant returns to scale. These findings suggest that there are potential scale benefits in the Canadian banking industry. The authors also find that technological and regulatory changes have had significant positive effects on the banks' cost structure.
description: Les auteurs mesurent les économies d'échelle et le rapport efficacité-coût dans le temps des six principales banques canadiennes. Pour ce faire, à partir d'un ensemble unique de données longitudinales allant de 1983 à 2003, ils estiment des fonctions de coût regroupées, de type translog, à partir desquelles ils établissent des indices d'efficience relative et d'économie d'échelle. La désagrégation des données leur permet de créer un modèle selon lequel les banques canadiennes sont associées à de multiples produits, notamment dans des branches d'activité non traditionnelles. Ils incorporent aux fonctions de coût des composantes tenant compte des changements d'ordre technologique et réglementaire intervenus durant la longue période couverte par les données analysées ainsi que de leurs effets spécifiques, variables dans le temps, sur les banques. Les auteurs sont amenés à rejeter l'hypothèse de rendements d'échelle constants, invalidée par leur modèle. Leurs conclusions donnent à penser qu'il y a place à des économies d'échelle au sein du secteur bancaire canadien. Les auteurs constatent également que les changements technologiques et réglementaires survenus ont eu une nette incidence positive sur la structure de coûts des banques.
title: Labour Market Adjustments to Exchange Rate Fluctuations: Evidence from Canadian Manufacturing Industries
Creators: name: Leung, Danny
name: Yuen, Terence
Publisher: name: Bank of Canada
Year: 2005

description: The authors provide some of the first empirical evidence on labour market adjustments to exchange rate movements in Canadian manufacturing industries. Generalized method of moments estimates that control for endogeneity show that there are significant changes in labour input when a change in the exchange rate occurs. During the 1981-97 period, the cumulative effect of a 10 per cent depreciation (appreciation) of the Canadian dollar was a 10 to 12.5 per cent increase (decline) in labour input. The majority of this effect was due to the increase (decrease) in the demand for domestically produced goods both at home and abroad when a depreciation (appreciation) occurs. The authors find evidence that the responsiveness of labour input to exchange rate movements was greater in the 1990s than in the 1980s. They also find that industries with high and medium net trade exposures adjust their labour inputs more than industries with low trade exposures. The exchange rate effect on real wages is estimated to be virtually zero for all manufacturing industries.
description: Les auteurs sont parmi les premiers à présenter des données empiriques sur les ajustements du marché du travail à l'évolution du taux de change dans les industries manufacturières canadiennes. Selon leurs estimations, qu'ils obtiennent en utilisant la méthode des moments généralisés afin de tenir compte du problème d'endogénéité, cette évolution aurait une grande incidence sur le facteur travail. Les auteurs calculent qu'au cours de la période 1981-1997, une baisse (ou une hausse) de 10 % du dollar canadien fait augmenter (ou diminuer) l'emploi de 10 à 12,5 % au total. Cet effet est principalement attribuable à la progression (ou au recul) que connaît la demande de produits nationaux, tant au pays qu'à l'étranger, lorsque la monnaie se déprécie (ou s'apprécie). Les auteurs notent que la sensibilité du facteur travail aux variations du taux de change a été plus marquée dans les années 1990 que durant la décennie précédente. Ils observent également que les industries fortement ou moyennement ouvertes aux échanges ajustent davantage le facteur travail que les autres. Enfin, ils estiment que les mouvements du taux de change ont une incidence pratiquement nulle sur les salaires réels dans toutes les industries manufacturières.
title: Learning-by-Doing or Habit Formation?
Creators: name: Bouakez, Hafedh
name: Kano, Takashi
Publisher: name: Bank of Canada
Year: 2005

description: In a recent paper, Chang, Gomes, and Schorfheide (2002) extend the standard real business cycle (RBC) model to allow for a learning-by-doing (LBD) mechanism whereby current labour supply affects future productivity. They show that this feature magnifies the propagation of shocks and improves the matching performance of the standard RBC model. In this paper, the authors show that the LBD model is nearly observationally equivalent to an RBC model with habit formation in labour (or, equivalently, in leisure). Under the same calibration of the parameters, the two models share the same equilibrium paths of output, consumption, and investment, but have different implications for hours worked. Using Bayesian techniques, the authors investigate which of the LBD and habit models fits the U.S. data best. Their results suggest that the habit specification is more strongly supported by the data.
description: Dans une étude récente, Chang, Gomes et Schorfheide (2002) élargissent le modèle type de cycles réels en y introduisant un mécanisme d'apprentissage qui permet à l'offre de travail d'influencer la productivité future. Ils constatent que ce mécanisme amplifie la propagation des chocs et affine la valeur prédictive du modèle type de cycles réels. Bouakez et Kano montrent dans leur étude que le modèle intégrant un mécanisme d'apprentissage est observationnellement quasi-équivalent à un modèle de cycles réels faisant intervenir la formation d'habitudes en matière de travail (ou, ce qui revient au même, de loisir). Lorsque des valeurs identiques sont attribuées aux paramètres des deux modèles, ceux-ci génèrent des sentiers d'équilibre similaires pour la production, la consommation et l'investissement, mais différents pour le nombre d'heures travaillées. Les auteurs déterminent par des techniques bayésiennes lequel des deux modèles étudiés présente le meilleur ajustement aux données américaines. D'après leurs résultats, le modèle de cycles réels avec formation d'habitudes est mieux étayé par les données.
title: Paratexte_Les Marionnettes pour tous
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Paratexte
description: ID_PARA_00879
Real-time and interactive tools for vocal training based on an analytic signal with a cosine series envelope
Creators: name: Kawahara, Hideki
name: Sakakibara, Ken-Ichi
name: Haneishi, Eri
name: Hagiwara, Kaori
Publisher: name: arXiv
Year: 2019
Subjects: subject: Sound (cs.SD)
subject: Human-Computer Interaction (cs.HC)
subject: Audio and Speech Processing (eess.AS)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We introduce real-time and interactive tools for assisting vocal training. In this presentation, we demonstrate mainly a tool based on real-time visualizer of fundamental frequency candidates to provide information-rich feedback to learners. The visualizer uses an efficient algorithm using analytic signals for deriving phase-based attributes. We start using these tools in vocal training for assisting learners to acquire the awareness of appropriate vocalization. The first author made the MATLAB implementation of the tools open-source. The code and associated video materials are accessible in the first author's GitHub repository.
description: 4 pages, 6 figures, APSIPA ASC 2019
A gauge invariant and string independent fermion correlator in the Schwinger model
Creators: name: Barci, D. G.
name: Oxman, L. E.
name: Sorella, S. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We introduce a gauge invariant and string independent two-point fermion correlator which is analyzed in the context of the Schwinger model (QED_2). We also derive an effective infrared worldline action for this correlator, thus enabling the computation of its infrared behavior. Finally, we briefly discuss possible perspectives for the string independent correlator in the QED_3 effective models for the normal state of HTc superconductors.
description: 14 pages, LaTeX
Maize Hybrids, Diversity of Diets and Sources of Vitamin A among Smallholder Farmers in Zambia
Creators: name: Smale, Melinda
name: Moursi, Mourad
name: Birol, Ekin
name: Smale, Melinda
name: Moursi, Mourad
name: Birol, Ekin
Publisher: name: Unknown
Year: 2013
Subjects: Crop Production/Industries
Food Consumption/Nutrition/Food Safety

description: Since a 1994 study by Kumar, we are not aware of analyses that have related the adoption of hybrid seed to dietary diversity and smallholder farmers in Zambia, despite the policy importance of nutrition and food security. We apply various econometric approaches to test the relationship of hybrid seed use to dietary diversity and diversity in sources of Vitamin A among smallholder maize growers in Zambia, based on a survey of 1,128 households. Four dietary diversity indicators are defined according to recent research advances: food group diversity, vitamin A diversity, food frequency, and frequency of consuming vitamin A-fortified food. Growing hybrid seed, whether measured as a binary variable or in terms of quantities planted, is strongly and positively related to all four indicators. Findings are robust to econometric models. Although it is often hypothesized that growing hybrids promotes crop specialization and reduces the range of on-farm food sources, these results suggest that instead, hybrid growers enjoy a greater range of food sources from farm production, market purchase, or both. In Zambia, smallholder maize farmers who do not grow hybrid seed are therefore a disadvantaged group, not only with respect to maize productivity, but other key, diet-related welfare indicators
The multimessenger fingerprint of Dark Matter
Creators: name: Bertone, Gianfranco
Publisher: name: Zenodo
Year: 2021
Subjects: challenges, neutrino, multimessenger, dark matter

description: Plenary Invited Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
Melitaea phoebe subsp. rostagnoi Turati 1920
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
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Melitaea
Melitaea phoebe
Melitaea phoebe rostagnoi turati 1920

description: Melitaea phoebe rostagnoi Turati 1920
(223 and Tav. II, figs 10-12) [TL: Italy, Roma, Monte Autore]; from the figure 10, the male forewing apices appear distinctly acute as in M. phoebe. NEKRUTENKO (1993: 129) listed the Type material of Turati in the Museo Regionale di Scienze Naturali, Torino, Italy, (MRSN) and referring to this subspecies stated that there were two male and three female syntypes from Monte Autore, Province of Rome, Italy; he identified them as Melitaea phoebe, a conclusion with which we cannot argue.
In view of the current long-term closure of the museum we cannot be sure of their identity, but M. phoebe seems most likely. No specimen of M. ornata has been observed in peninsular Italy north of San Marco Catola, Foggia, Apulia, Italy (c. 41º 30’ N.) (CAGNETTA 2016: 246). Similarly the aberration sterlineata Turati, 1921: (Fig. 12), with an almost unmarked discal area of the forewing and from the same locality, is most likely M. phoebe; VAN OORSCHOT & COUTSIS (2014: 61) and RUSSELL & TENNENT (2016: 52, note 75) agreed with this determination.
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 453, DOI: 10.57065/shilap.369
title: Transcription du manuscrit de Semur-en-Auxois, Bibliothèque Municipale, ms. 1, p. 96
Creators: name: Aubert, Eduardo Henrik
name: Brochard, Pierre
name: Aubert, Eduardo Henrik
name: Brochard, Pierre
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Laboratoire de médiévistique occidentale de Paris
subject: Semur-en-Auxois
subject: LaMOP

description: Transcription du manuscrit de Semur-en-Auxois, Bibliothèque Municipale, ms. 1, p. 96

production-software: eScriptorium + Kraken version 3.0.13 (PageXml)
description: Source: https://www.nakala.fr/10.34847/nkl.00cddmz1
description: Source: https://www.nakala.fr/10.34847/nkl.e905tdea
description: Relation: https://lamop.hypotheses.org/
description: Transcription du manuscrit Semur-en-Auxois, Bibliothèque Municipale, ms. 1
description: Transcription du manuscrit Semur-en-Auxois, Bibliothèque Municipale, ms. 1
The Significance of the Sodium Detection in the Extrasolar Planet HD209458b Atmosphere
Creators: name: Seager, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Hubble Space Telescope (HST) detection of an extrasolar planet atmosphere in 2001 was a landmark step forward for the characterization of extrasolar planets. HST detected the trace element sodium, via the neutral atomic resonance doublet at 593 nm, in the transiting extrasolar giant planet HD209458b. In this paper I discuss the significance of this first ever extrasolar planet atmosphere detection. I explain how the sodium measurement can be used as a constraint on HD209458b atmosphere models and review recent interpretations of the lower-than-expected sodium line strength.
description: 9 pages, Scientific Frontiers on Research in Extrasolar Planets, ASP Conf Ser., eds. D. Deming and S. Seager
Strong-field molecular alignment mediated by nonadiabatic charge localization
Creators: name: Romanov, D. A.
name: Levis, R. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A new mode of effective interaction of molecular rotational degrees of freedom with an intense, nonresonant, ultrashort laser pulse is explored. Transient nonadiabatic charge redistribution (TNCR) in larger molecules or molecular ions causes impulsive-torque interaction that replaces the traditional mechanism of molecular alignment based on perturbative interaction of the laser field with electronic subsystem as manifested in linear anisotropic polarizability or hyperpolarizability. We explore this new alignment mechanism on a popular generic model of a tight-binding diatomic molecule. We consider the case of rotational wavepacket formation when a molecule is initially in the ground rotational state. The rotational wavepacket emerging from the TNCR interaction consists of states with higher rotational quantum numbers, in comparison with the anisotropic-polarizability case, and the after-pulse alignment oscillations are out-of-phase with those resulting from the traditional interaction. The TNCR interaction mode is expected to play a major role when a strong laser field actually causes extensive nonresonant excitation and/or ionization of a molecule.
Explaining the ANITA events by a 𝐿𝑒−𝐿𝜏 gauge model
Creators: name: Yasaman Farzan
Publisher: name: Zenodo
Year: 2021
Subjects: Neutrino Theory and Cosmology - Non Standard Interactions and Cosmology

description: Parallel Contributed Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
title: Endogenous Central Bank Credibility in a Small Forward-Looking Model of the U.S. Economy
Creators: name: Lalonde, René
Publisher: name: Bank of Canada
Year: 2005

description: The linkages between inflation and the economy's cyclical position are thought to be strongly affected by the credibility of monetary authorities. The author complements existing research by estimating a small forward-looking model of the U.S. economy with endogenous central bank credibility. His work differs from the existing literature in several ways. First, he endogenizes and estimates credibility parameters, allowing inflation expectations to be a mix of backward- and forward-looking agents. Second, his models include both outcome- and action-based credibility. Third, he estimates a non-linear relation between policy credibility and divergences of inflation from target, which is also assumed to change over history. Finally, the author's non-linear time-varying credibility indexes do not rely on a two-regime definition, but on a continuum of credibility regimes. The author finds strong, stable, and statistically significant outcome- and action-credibility effects that generate important inflation inertia. According to his results, the value of the endogenous credibility indexes has risen steadily across the different monetary policy regimes.
description: Le crédit dont jouissent les autorités monétaires influerait fortement sur la relation entre l'inflation et la position de l'économie dans le cycle. En complément des recherches existantes, l'auteur estime un petit modèle prospectif de l'économie américaine où la crédibilité de la banque centrale est endogène. Son approche se démarque de plusieurs façons de celle de ses prédécesseurs. Tout d'abord, l'auteur endogénéise et estime des paramètres de crédibilité en postulant que les anticipations d'inflation traduisent le fait que certains agents ont un comportement adaptatif et d'autres un comportement prospectif. Deuxièmement, il intègre dans ses modèles deux types de crédibilité : l'une fondée sur les résultats obtenus par les autorités monétaires dans le passé et l'autre sur les effets anticipés de leur action. Troisièmement, il estime une relation non linéaire entre la crédibilité de la politique monétaire et les écarts de l'inflation par rapport à son niveau cible, lequel varie par hypothèse dans le temps. Enfin, l'auteur a recours à des indices de crédibilité non dichotomiques, qui peuvent prendre un continuum de valeurs. Il observe des effets de crédibilité probants, stables et statistiquement significatifs qui induisent une forte inertie de l'inflation. D'après ses résultats, la valeur des indices de crédibilité endogène a augmenté continuellement sous les différents régimes de politique monétaire.
title: Risk Perceptions and Attitudes
Creators: name: Misina, Miroslav
Publisher: name: Bank of Canada
Year: 2005

description: Changes in risk perception have been used in various contexts to explain shorter-term developments in financial markets, as part of a mechanism that amplifies fluctuations in financial markets, as well as in accounts of "irrational exuberance." This approach holds that changes in risk perception affect actions undertaken in risky situations, and create a discrepancy between the risk attitude implied by those actions and the a priori description of risk attitude as summarized by the Arrow-Pratt coefficients of risk aversion. The author characterizes this discrepancy by introducing the notion of risk perception within the expected utility theory, and proposes the concept of implied risk aversion as a summary measure of risk attitudes implied by agents' actions. Properties of implied risk aversion are related to an individual's future outlook. Key ideas are illustrated using an asset-pricing model.
description: Les changements de la perception du risque ont servi à expliquer dans divers contextes l'évolution à court terme des marchés financiers, les phénomènes d'amplification des fluctuations sur ces marchés ainsi que les périodes d'« exubérance irrationnelle ». Selon les tenants de cette approche, les changements de perception influencent les actions entreprises en situation risquée, ce qui crée une divergence entre l'attitude face au risque dénotée par ces actions et celle mesurée a priori par les coefficients d'aversion pour le risque d'Arrow-Pratt. Pour tenir compte de cette divergence, l'auteur intègre la notion de perception du risque à la théorie de l'utilité espérée et propose de mesurer l'attitude qui transparaît implicitement dans les actions des agents au moyen d'un nouvel indicateur : l'aversion implicite pour le risque. Les propriétés de cet indicateur sont définies par les attentes de l'agent concernant l'avenir. Les idées maîtresses de l'étude sont illustrées à l'aide d'un modèle d'évaluation des actifs.
TDAM: a Topic-Dependent Attention Model for Sentiment Analysis
Creators: name: Pergola, Gabriele
name: Gui, Lin
name: He, Yulan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a topic-dependent attention model for sentiment classification and topic extraction. Our model assumes that a global topic embedding is shared across documents and employs an attention mechanism to derive local topic embedding for words and sentences. These are subsequently incorporated in a modified Gated Recurrent Unit (GRU) for sentiment classification and extraction of topics bearing different sentiment polarities. Those topics emerge from the words' local topic embeddings learned by the internal attention of the GRU cells in the context of a multi-task learning framework. In this paper, we present the hierarchical architecture, the new GRU unit and the experiments conducted on users' reviews which demonstrate classification performance on a par with the state-of-the-art methodologies for sentiment classification and topic coherence outperforming the current approaches for supervised topic extraction. In addition, our model is able to extract coherent aspect-sentiment clusters despite using no aspect-level annotations for training.
title: Lines of Credit and Consumption Smoothing: The Choice between Credit Cards and Home Equity Lines of Credit
Creators: name: Dey, Shubhasis
Publisher: name: Bank of Canada
Year: 2005

description: The author models the choice between credit cards and home equity lines of credit (HELOCs) within a framework where consumers hold lines of credit as instruments of consumption smoothing across state and time. Flexible repayment schemes for lines of credit induce risk-averse consumers with sufficiently high discount rates to underinsure and hold lines of credit instead as a buffer, even when they have access to full and fair insurance markets. Weighing the fixed upfront fees and higher default costs of HELOCs against the advantages of low and income-tax-deductible interest payments, the author finds a threshold level of potential borrowing belowwhich consumers prefer to use credit cards exclusively. Above that threshold, consumers decide touse HELOCs and consolidate all outstanding credit card debt into them; however, a rising probability of default and the resulting loss of equity in the home will put an upper bound on the potential HELOC borrowing that will prevent full debt consolidation.
description: Postulant que les consommateurs recourent aux lignes de crédit pour lisser leur consommation au fil du temps et des circonstances, l'auteur modélise les conditions qui les amènent à emprunter à l'aide d'une carte de crédit ou d'une marge de crédit garantie par l'avoir propre foncier. La souplesse des plans de remboursement dont sont assorties les lignes de crédit incite les consommateurs peu enclins au risque et ayant un taux d'actualisation assez élevé à s'en servir comme tampon et à ne pas s'assurer contre certains risques, même s'ils ont accès à un marché de l'assurance complet et concurrentiel. Une fois mis en balance les coûts associés aux marges de crédit garanties par l'avoir foncier (coûts de défaillance plus élevés et frais fixes initiaux) et les avantages qu'elles offrent (taux d'intérêt plus faible et déductibilité des paiements d'intérêts), l'auteur montre qu'en deçà d'un certain seuil d'emprunt potentiel, les ménages préfèrent s'en tenir à leur carte de crédit. Passé ce seuil, ces derniers choisissent de transférer à leur marge de crédit tous leurs emprunts sur carte de crédit. Cependant, puisque le risque de défaillance — et donc le risque de perdre l'avoir foncier — augmente avec le montant de dette accumulé sur la marge de crédit, il existe également un plafond au niveau d'emprunt potentiel sur la marge de crédit, ce qui empêchera le regroupement de la totalité des dettes.