cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Comparing Alternative Output-Gap Estimators: A Monte Carlo Approach
Creators: name: Rennison, Andrew
Publisher: name: Bank of Canada
Year: 2003

description: The author evaluates the ability of a variety of output-gap estimators to accurately measure the output gap in a model economy. A small estimated model of the Canadian economy is used to generate artificial data. Using output and inflation data generated by this model, the author uses each output-gap estimation methodology to construct an estimate of the true output gap. He then evaluates the methodologies by comparing their respective estimates of the output gap with the true gap. The estimators are evaluated on the basis of correlations between the actual and estimated output gap, as well as the root-mean-squared estimation error. The author also varies the properties of potential output and the output gap in the data-generating process to test the robustness of his results. His findings indicate that an estimator that combines the Hodrick-Prescott filter with a Blanchard-Quah structural vector autoregression (SVAR) yields an estimate that is accurate compared with competing methods at the end-of-sample. He also finds that the performance of the SVAR relative to that of other methodologies is quite robust to violations in the identifying assumptions of the SVAR.
description: L'auteur évalue la capacité de différents estimateurs à mesurer l'écart de production dans le cadre d'une économie modélisée. Il utilise un petit modèle estimé de l'économie canadienne afin de générer des données artificielles sur la production et l'inflation. À partir de ces données, il s'attache à calculer le véritable écart de production en ayant recours à une batterie de méthodes d'estimation. Il analyse ensuite l'efficacité de ces dernières en comparant l'écart obtenu à l'aide de chacune d'elles au véritable écart. Les estimateurs sont évalués sur la base des corrélations entre l'écart effectif et l'écart estimé de même qu'à la lumière du critère de la racine carrée de l'erreur quadratique moyenne. Pour vérifier la robustesse des résultats, l'auteur modifie aussi les propriétés de la production potentielle et de l'écart de production dans le processus générateur des données. D'après ses conclusions, la combinaison du filtre de Hodrick-Prescott avec la méthode de Blanchard-Quah fondée sur l'emploi d'un vecteur autorégressif structurel donne une estimation plus précise que les autres méthodes en fin d'échantillon. L'auteur constate également que la méthode de Blanchard-Quah est supérieure aux autres même lorsque ses hypothèses d'identification ne sont pas respectées.
title: Bank Lending, Credit Shocks, and the Transmission of Canadian Monetary Policy
Creators: name: Atta-Mensah, Joseph
name: Dib, Ali
Publisher: name: Bank of Canada
Year: 2003

description: The authors use a dynamic general-equilibrium model to study the role financial frictions play as a transmission mechanism of Canadian monetary policy, and to evaluate the real effects of exogenous credit shocks. Financial frictions, which are modelled as spreads between deposit and loan interest rates, are assumed to depend on economic activity as well as on credit shocks. A general finding is that almost all of the real response to a monetary policy shock comes from the price rigidity and not the credit frictions. Credit shocks, however, do have substantial real effects on macroeconomic variables. Thus, in this model, imperfections in credit markets are responsible only for a small amplification and propagation of the real effects of monetary policy shocks.
description: Les auteurs utilisent un modèle dynamique d'équilibre général pour étudier le rôle que jouent les frictions financières comme mécanisme de transmission de la politique monétaire canadienne. Ils évaluent aussi les effets réels de chocs exogènes de crédit. Les frictions financières sont modélisées comme l'écart entre les taux d'intérêt des dépôts et ceux des emprunts bancaires. Elles dépendent ainsi de l'activité économique et des chocs de crédit. La conclusion générale qui découle de cette étude est que la majeure partie des effets réels des chocs de politique monétaire est due à la rigidité des prix et non aux frictions financières. Cependant, les chocs de crédit affectent significativement les variables macroéconomiques. Par conséquent, l'imperfection des marchés du crédit n'explique dans ce modèle qu'une faible part de l'amplification et de la propagation des effets réels des chocs de politique monétaire.
Price Variability, Co-integration and Leadership in the Market for Locally Produced Rice: A Case Study of Southwest Zone of Nigeria
Creators: name: Mafimisebi, Taiwo Ejiola
name: Agunbiade, B.O.
name: Mafimisebi, O.E.
name: Mafimisebi, Taiwo Ejiola
name: Agunbiade, B.O.
name: Mafimisebi, O.E.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: Rice
subject: local production
subject: price movements
subject: market linkage
subject: price leadership
subject: Nigeria

description: Most studies on local rice in Nigeria were geared toward increasing production, consumption or competitiveness. Achieving these requires a study on extent of pricing contacts in the market for local rice. Secondary data consisting of urban monthly retail price series in the six southwest states of Nigeria were collected and analyzed. Analytical techniques included Augmented Dickey Fuller (ADF), Johansen Co-integration and Granger Causality models. Empirical results indicated that growth in retail prices was highest in 2004 and in Ogun (48.69%) and Ondo (45.36%) implying that local rice was more costly in these states. Retail prices were more volatile in Lagos (37.3%) while the least price volatility was recorded in Ogun (30.4%). The ADF test showed all price series were non-stationary at their levels but were stationary after first-difference. Pair-wise market integration model indicated that prices were co-integrated at either 1% or 5% levels of significance connoting high degree of marketing efficiency. Multiple co-integration model also indicated five co-integrating equations in six, at 5% level thus validating the result of pair-wise market co-integration tests. Granger causality model revealed that the supply-deficient markets in Lagos and Osun were driving prices in other states. These results may have arisen from the storability of rice and closeness of the market locations. Despite this very high level of linkage, there is the need for all stakeholders in the market to continue to effectively perform their roles so that economic benefits derivable from this scenario of strong pricing contacts can be fully realized and sustained.
A Bin Encoding Training of a Spiking Neural Network-based Voice Activity Detection
Creators: name: Dellaferrera, Giorgia
name: Martinelli, Flavio
name: Cernak, Milos
Publisher: name: arXiv
Year: 2019
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Advances of deep learning for Artificial Neural Networks(ANNs) have led to significant improvements in the performance of digital signal processing systems implemented on digital chips. Although recent progress in low-power chips is remarkable, neuromorphic chips that run Spiking Neural Networks (SNNs) based applications offer an even lower power consumption, as a consequence of the ensuing sparse spike-based coding scheme. In this work, we develop a SNN-based Voice Activity Detection (VAD) system that belongs to the building blocks of any audio and speech processing system. We propose to use the bin encoding, a novel method to convert log mel filterbank bins of single-time frames into spike patterns. We integrate the proposed scheme in a bilayer spiking architecture which was evaluated on the QUT-NOISE-TIMIT corpus. Our approach shows that SNNs enable an ultra low-power implementation of a VAD classifier that consumes only 3.8$μ$W, while achieving state-of-the-art performance.
description: 5 pages, 3 figures, 1 table
Factors Affecting the Hedging Decision of Maize Farmers in Gauteng Province
Creators: name: Mofokeng, Maine
name: Vink, Nick
name: Mofokeng, Maine
name: Vink, Nick
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Crop Production/Industries
subject: Hedging
subject: Price risk
subject: Probit regression

description: The maize industry in South Africa has a long history of government intervention, fuelled by the two Marketing Acts (of 1937 and 1968). After the introduction of the Marketing of Agricultural Products Act (Act 47 of 1996), farmers were exposed to international maize prices, i.e. to the forces of global supply and demand. Through forward contracting (hedging), farmers can minimize the price risk that they are facing. Different factors affect the hedging decisions of farmers. The main objective of this study was to identify those factors for maize farmers in Gauteng, and hence to gain an understanding of their rate of adoption of hedging strategies. A Probit regression equation was estimated, and the results show that the factors that have the most influence are the gender, age, and agricultural qualification of the principal decision maker; whether the decision maker is a member of a grain association and the size of that grain association; the length of period that the decision maker has been producing grain; the size of the farm; whether the farmer rents in land; the proportion of off-farm income earned; and whether the farmer takes out insurance.
Additional file 1: of Recombination of a dual-CAR-modified T lymphocyte to accurately eliminate pancreatic malignancy
Creators: name: Zhang, Erhao
name: Yang, Peiwei
name: Gu, Jieyi
name: Wu, Heming
name: Chi, Xiaowei
name: Liu, Chen
name: Wang, Ying
name: Xue, Jianpeng
name: Qi, Weiyan
name: Sun, Qingbo
name: Zhang, Shengnan
name: Hu, Jialiang
name: Xu, Hanmei
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Figure S1. Schematic representation of CAR-engineered T cells in this research. Figure S2. Detection of effector cells and target cells. Figure S3. dCAR-mediated activation and co-stimulation of CD8+ T cells facilitates significant cytotoxicity and specific activity. Figure S4. dCAR-engineered CD4+ T cells could yield slight cytotoxicity compared with CAR-modified CD8+ T cells. (DOCX 911 kb)
Agricultural trade for food security in Africa: A Ricardian model approach
Creators: name: Diagne, Mandiaye
name: Abele, Steffen
name: Diagne, Aliou
name: Seck, Papa Abdoulaye
name: Diagne, Mandiaye
name: Abele, Steffen
name: Diagne, Aliou
name: Seck, Papa Abdoulaye
Publisher: name: Unknown
Year: 2013
Subjects: Food Security and Poverty
International Relations/Trade

description: Regionalism and food security is a relatively neglected topic with very limited literature. We use a Ricardian trade model with multiple goods and countries which embeds a structure of gravity equation and yield variability. Our study shows that integration with African markets of staple foods is associated with higher growth, underpinning the need for growth strategies to emphasize scaling up and diversifying exports within Africa. Africa needs to unlock its high potential untapped land and fill up the yield gap. We found as well that enhanced competitiveness and reduced barriers to trade are the two critical areas of action.
title: Public Venture Capital and Entrepreneurship
Creators: name: Secrieru, Oana
name: Vigneault, Marianne
Publisher: name: Bank of Canada
Year: 2004

description: Entrepreneurship is a key factor in promoting growth in output and employment. Consequently, to encourage new start-ups, most governments in developed countries have public venture capital programs. The authors develop a model that endogenously determines the number of entrepreneurs and the optimal quantity of financing and managerial advice provided by a public venture capital program. Their analysis is based on a model of occupational choice that has informational asymmetries regarding the ability of entrepreneurs. The authors identify circumstances under which over- or underinvestment can occur. They also show that the equilibrium is characterized by an inefficient number (too many or too few) of less-able entrepreneurs. Furthermore, the authors find that the government faces disincentives in providing small amounts of managerial advice; larger amounts of such advice may be optimal.
description: L'entrepreneuriat est un ingrédient clé de la croissance de la production et de l'emploi. C'est pourquoi la plupart des États industrialisés possèdent des programmes conçus pour faciliter l'accès des jeunes entreprises au capital de risque. Les auteures ont mis au point un modèle qui détermine de manière endogène le nombre d'entrepreneurs ainsi que la quantité de financement et de conseils managériaux fournie optimalement par un programme public d'accès au capital de risque. Leur analyse repose sur un modèle de choix professionnel où la compétence des entrepreneurs pose un problème d'asymétrie d'information. Les auteures établissent quelles conditions peuvent donner lieu à un surinvestissement ou, au contraire, à un sous-investissement. Elles montrent par ailleurs que l'équilibre se caractérise par la présence en nombre inefficient (trop grand ou trop faible) d'entrepreneurs de moindre compétence. Elles constatent enfin que l'intervention des autorités publiques a pour effet de réduire le bien-être si elle ne s'accompagne que d'une quantité limitée de conseils managériaux; il pourrait donc être optimal d'offrir davantage de conseils aux entreprises.
MOESM2 of Falls and fear of falling in older adults with total joint arthroplasty: a scoping review
Creators: name: Chen, Serena
name: Voaklander, Don
name: Perry, Danielle
name: C. Jones
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Table S1_SUBMITTED.pdf. Table S1. Characteristics of included studies. Extracted data from included studies.
Theory of Fast Flavor Conversion of Supernova neutrinos
Creators: name: Soumya Bhattacharyya
Publisher: name: Zenodo
Year: 2021
Subjects: Low Energy Neutrinos

description: Parallel Flash Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
Open-string vertex algebras, tensor categories and operads
Creators: name: Huang, Yi-Zhi
name: Kong, Liang
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 17B69; 81T40; 18D10; 18D50

description: We introduce notions of open-string vertex algebra, conformal open-string vertex algebra and variants of these notions. These are ``open-string-theoretic,'' ``noncommutative'' generalizations of the notions of vertex algebra and of conformal vertex algebra. Given an open-string vertex algebra, we show that there exists a vertex algebra, which we call the ``meromorphic center,'' inside the original algebra such that the original algebra yields a module and also an intertwining operator for the meromorphic center. This result gives us a general method for constructing open-string vertex algebras. Besides obvious examples obtained from associative algebras and vertex (super)algebras, we give a nontrivial example constructed from the minimal model of central charge c=1/2. We establish an equivalence between the associative algebras in the braided tensor category of modules for a suitable vertex operator algebra and the grading-restricted conformal open-string vertex algebras containing a vertex operator algebra isomorphic to the given vertex operator algebra. We also give a geometric and operadic formulation of the notion of grading-restricted conformal open-string vertex algebra, we prove two isomorphism theorems, and in particular, we show that such an algebra gives a projective algebra over what we call the ``Swiss-cheese partial operad.''
description: 53 pages
title: Estimating New Keynesian Phillips Curves Using Exact Methods
Creators: name: Khalaf, Lynda
name: Kichian, Maral
Publisher: name: Bank of Canada
Year: 2004

description: The authors use simple new finite-sample methods to test the empirical relevance of the New Keynesian Phillips curve (NKPC) equation. Unlike tests based on the generalized method of moments, the generalized Anderson-Rubin (1949) tests are immune to the presence of weak instruments and allow, by construction, the identification status of a model to be assessed. The authors illustrate their results using GalÍ and Gertler's (1999) NKPC specifications and data, as well as a survey-based inflation-expectation series from the Federal Reserve Bank of Philadelphia.

The test the authors use rejects GalÍ and Gertler's estimates (conditional on the latters' choice of instruments). Nevertheless, and in contrast with results obtained by Ma (2002), the authors do obtain relatively informative confidence sets. This provides support for NKPC equations and illustrates the usefulness of using exact procedures in estimations based on instrumental variables. The authors' results also reveal that the least well-identified parameter is w; namely, the proportion of firms that do not adjust their prices in period t.
description: Les auteures font appel aux nouvelles méthodes d'inférence simples adaptées aux échantillons finis pour tester la validité empirique de la nouvelle courbe de Phillips keynésienne. Contrairement aux tests fondés sur la méthode des moments généralisés, les tests généralisés d'Anderson-Rubin (1949) ne sont pas sensibles à la présence de variables instrumentales médiocres et permettent, de par leur construction, d'évaluer la qualité de l'identification d'un modèle. Aux fins de leur démonstration, les auteures utilisent les données de GalÍ et Gertler (1999) et la formulation que ceux-ci proposent pour la nouvelle courbe de Phillips keynésienne, ainsi que les données d'une enquête de la Banque fédérale de réserve de Philadelphie sur les attentes d'inflation.

Le test appliqué par les auteures conduit au rejet des estimations de GalÍ et Gertler, du moins pour le même ensemble de variables instrumentales. En revanche, les intervalles de confiance qu'elles obtiennent pour les paramètres sont relativement étroits, ce qui tranche avec les résultats de Ma (2002) et accrédite la validité de la nouvelle courbe de Phillips keynésienne. Il semble donc que l'emploi d'une procédure d'estimation exacte soit utile lorsqu'on a recours à des variables instrumentales. De tous les paramètres examinés par les auteures, le moins bien identifié est w, soit le pourcentage d'entreprises qui ne rajustent pas leurs prix à la période t.
Additional file 12 of Gregarine single-cell transcriptomics reveals differential mitochondrial remodeling and adaptation in apicomplexans
Creators: name: Salomaki, Eric D.
name: Terpis, Kristina X.
name: Rueckert, Sonja
name: Kotyk, Michael
name: Varadínová, Zuzana Kotyková
name: Čepička, Ivan
name: Lane, Christopher E.
name: Kolisko, Martin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 12: Fig. S7. Effects of fast evolving site removal on support for bipartitions of interest in the phylogenomic analyses of genes that are unique to dataset A. Graphs plotting support for bipartitions of interest after the stepwise removal of the 3000 fastest evolving sites until all sites are removed from each dataset (dataset A on the top and dataset B on the bottom). 100 RAxML rapid bootstraps values (PROTCATLGF) are on the y-axis and number of sites removed, measured in thousands, is shown on the x-axis.
Presentation on "RADICAL: Developing an electronic sensor for detecting short-lived atmospheric radicals and other gases" for ASIC 2024
Creators: name: Wenger, John
name: Vardhan, Vaishali
name: Biswas, Subhajit
name: Hellebust, Stig
name: Holmes, Justin D
Publisher: name: Zenodo
Year: 2024
Subjects: radical
junctionless nanowire transistor
environmental monitoring
gas sensor
air quality monitoring
ASIC 2024
ASIC presentation
ASIC poster
atmospheric radicals
air chemistry
electronic sensors
University College Cork

description: ABSTRACT:

Atmospheric radicals, particularly hydroxyl and nitrate, are the drivers of chemical processes that determine atmospheric composition and influence air quality and climate. However, the detection of these short-lived atmospheric radicals is far from routine, and only a few labs worldwide can accurately measure their concentrations in air. Current techniques for measuring radicals are based on spectroscopic and mass spectrometric methods, which although sensitive and robust, are technically complex, cumbersome and expensive.

This presentation provides an overview, and a discussion of the latest results, from the EU-funded project ‘RADICAL’ which is developing a small, affordable sensor to electrically detect short-lived atmospheric radicals in real-time. This will be the first gas sensor built from an array of junctionless nanowire transistors, which have proven popular for liquid-based sensors. These silicon devices are functionalised with organic “probe” molecules (e.g. alkenes) for high selectivity and sensitivity towards the target analytes. Preliminary results for these sensors show ppb-level detection capability towards different atmospheric species including NO2, O3 and HOx. 

Although challenging, RADICAL sensors not only have the potential to be deployed on a large scale but can also be adapted to detect other important atmospheric gases, particularly on short-timescales. The project team welcomes ideas for future collaborations on how these sensors might be best applied in real-life environmental monitoring situations.

Acknowledgements:

All RADICAL partners, EU funding

 

Additional Information: 

John Wenger delivered this presentation for Air Sensors International Conference 2024.

RADICAL represents a 'Fundamental Breakthrough in Detection of Atmospheric Free Radicals'.

Find out more on the RADICAL project website: radical-air.eu

The RADICAL project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement number 899282.
Buffed energy landscapes: Another solution to the kinetic paradoxes of protein folding
Creators: name: Plotkin, Steven S.
name: Wolynes, Peter G.
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: The energy landscapes of proteins have evolved to be different from most random heteropolymers. Many studies have concluded that evolutionary selection for rapid and reliable folding to a given structure that is stable at biological temperatures leads to energy landscapes having a single dominant basin and an overall funnel topography. We show here that, while such a landscape topography is indeed a sufficient condition for folding, another possibility also exists, giving a new class of foldable sequences. These sequences have landscapes that are only weakly funneled in the conventional thermodynamic sense, but have unusually low kinetic barriers for reconfigurational motion. Traps have been specifically removed by selection. Here we examine the possibility of folding on these "buffed" landscapes, by mapping the determination of statistics of pathways for the heterogeneous nucleation processes involved in escaping from traps to the solution of an imaginary time Schroedinger equation. This equation is solved analytically in adiabatic and ``soft-wall'' approximations, and numerical results are shown for the general case. The fraction of funneled vs. buffed proteins in sequence space is estimated, suggesting the statistical dominance of the funneling mechanism for achieving foldability.
description: 12 pgs, 4 figs, subm Proc. Natl. Acad. Sci
Evidence for a Significant Intermediate-Age Population in the M31 Halo from Main Sequence Photometry
Creators: name: Brown, Thomas M.
name: Ferguson, Henry C.
name: Smith, Ed
name: Kimble, Randy A.
name: Sweigart, Allen V.
name: Renzini, Alvio
name: Rich, R. Michael
name: VandenBerg, Don A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a color-magnitude diagram (CMD) for a minor-axis field in the halo of the Andromeda galaxy (M31), 51 arcmin (11 kpc) from the nucleus. These observations, taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope, are the deepest optical images yet obtained, attaining 50% completeness at V = 30.7 mag. The CMD, constructed from approximately 300,000 stars, reaches more than 1.5 mag fainter than the old main-sequence turnoff. Our analysis is based on direct comparisons to ACS observations of four globular clusters through the same filters, as well as chi-squared fitting to a finely-spaced grid of calibrated stellar-population models. We find that the M31 halo contains a major (approximately 30% by mass) intermediate-age (6-8 Gyr) metal-rich ([Fe/H] > -0.5) population, as well as a significant globular-cluster age (11-13.5 Gyr) metal-poor population. These findings support the idea that galaxy mergers played an important role in the formation of the M31 halo.
description: 4 pages, Latex. 1 color figure. Uses corrected version of emulateapj.sty and apjfonts.sty (included). Accepted for publication in ApJ Letters. Images available at http://hubblesite.org/newscenter/archive/2003/15/
The AGILE Data Center and its Legacy
Creators: name: Pittori, Carlotta
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present an overview of the main AGILE Data Center activities and architecture. AGILE is a space mission of the Italian Space Agency (ASI) in joint collaboration with INAF, INFN, CIFS, and with the participation of several Italian space industry companies. The AGILE satellite was launched on April 23, 2007, and is devoted to the observation of the gamma-ray Universe in the 30 MeV -- 50 GeV energy range, with simultaneous X-ray imaging capability in the 18-60 keV band. The AGILE Data Center, part of the ASI multi-mission Space Science Data Center (SSDC, previously known as ASDC) is in charge of all the scientific operations: data management, archiving, distribution of AGILE data and scientific software, and user support. Thanks to its sky monitoring capability and fast ground segment alert system, AGILE is substantially improving our knowledge of the gamma-ray sky, and provides a crucial contribution to multimessenger follow-up of gravitational waves and neutrinos
description: This is a pre-print of an article published in Rendiconti Lincei, Scienze Fisiche e Naturali, part of the topical collections: "A Decade of AGILE: Results, Challenges and Prospects of Gamma-Ray Astrophysics". The final authenticated version is available online at: https://doi.org/10.1007/s12210-019-00857-x
title: Durées d'utilisation des facteurs et fonction de production : une estimation par la méthode des moments généralisés en système
Creators: name: Heyer, Eric
name: Pelgrin, Florian
name: Sylvain, Arnaud
Publisher: name: Bank of Canada
Year: 2004

description: Although a number of studies have demonstrated the importance of the degree of factor utilization in economic analysis, the impact of the durations of utilization in a production function remains largely unknown, particularly in terms of the duration of equipment utilization. Using French data on industrial firms over the period 1989–2001, the authors estimate a Cobb-Douglas production function that accounts for the volumes and durations of factor utilization. They draw on the framework proposed by Blundell and Bond (2000), assuming that serially correlated shocks allow a dynamic representation of the production function, and they choose the system-generalized method of moments as the reference estimation method. Their estimates yield identical elasticities for shifts of work and capital: the increase in output resulting from doubling the number of work teams is equivalent to that from doubling the stock of capital. Finally, they cannot reject the null hypothesis of constant returns to scale in their sample.
description: Si plusieurs travaux ont montré l'importance des degrés d'utilisation des facteurs dans l'analyse économique, l'influence des durées d'utilisation des facteurs dans la combinaison productive reste néanmoins largement méconnue, particulièrement en ce qui concerne la durée d'utilisation des équipements. À partir de données d'entreprises industrielles françaises sur la période 1989-2001, les auteurs estiment une fonction de production Cobb-Douglas tenant compte des volumes de facteurs et des durées d'utilisation. Ils reprennent le cadre défini par Blundell et Bond (2000) en supposant l'existence de chocs autocorrélés permettant une représentation dynamique de la combinaison productive et utilisent comme méthode d'estimation de référence la méthode des moments généralisés en système. Il ressort de leurs estimations que le travail posté et le capital ont des élasticités identiques : l'accroissement de la production résultant d'un doublement du nombre d'équipes successives équivaut à celui d'un doublement du stock de capital. Ils acceptent également l'hypothèse de rendements d'échelle constants.
Additional file 14 of Gregarine single-cell transcriptomics reveals differential mitochondrial remodeling and adaptation in apicomplexans
Creators: name: Salomaki, Eric D.
name: Terpis, Kristina X.
name: Rueckert, Sonja
name: Kotyk, Michael
name: Varadínová, Zuzana Kotyková
name: Čepička, Ivan
name: Lane, Christopher E.
name: Kolisko, Martin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 14: Fig. S9. Box-and-whisker plots showing the difference in gene likelihood scores (ΔGLS) dataset A and dataset B. ΔGLS values for genes that plot above the upper whisker are shown with the preferred topology of the gene tree (A + C = core apicomplexans with Cryptosporidium; A + G = core apicomplexans with gregarines; G + C = gregarines with Cryptosporidium).
The diameter of uniform spanning trees in high dimensions
Creators: name: Michaeli, Peleg
name: Nachmias, Asaf
name: Shalev, Matan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We show that the diameter of a uniformly drawn spanning tree of a connected graph on $n$ vertices which satisfies certain high-dimensionality conditions typically grows like $Θ(\sqrt{n})$. In particular this result applies to expanders, finite tori $\mathbb{Z}_m^d$ of dimension $d \geq 5$, the hypercube $\{0,1\}^m$, and small perturbations thereof.
description: 29 pages
Phase sensitive noise in quantum dots under periodic perturbation
Creators: name: Lamacraft, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We evaluate the ensemble averaged noise in a chaotic quantum dot subject to DC bias and a periodic perturbation of frequency $Ω$. The noise displays cusps at bias $V_n=n\hbarΩ/e$ that survive the average, even when the period of the perturbation is far shorter than the dwell time in the dot. These features are sensitive to the phase of the time-dependent scattering amplitudes of electrons to pass through the system.
description: Published version. Improved discussion, with a few small typos corrected
title: Contraintes de liquidité et capital humain dans une petite économie ouverte
Creators: name:  Pelgrin, Florian
Publisher: name: Bank of Canada
Year: 2004

description: In an overlapping-generations model that represents a small open economy, where agents live two periods, liquidity constraints lead to low economic development when the only accumulable factor is human capital. In the context of multiple equilibria, an underdevelopment trap can result in which the growth rate of the economy and the level of education are low. A financial liberalization policy may lead to improvements in such a situation.
description: Dans le cadre d'un modèle à générations imbriquées à deux périodes, l'introduction de contraintes de liquidité (restrictions du crédit) limite le développement économique si le seul facteur de croissance est le capital humain. En présence d'équilibres multiples, l'économie peut se retrouver dans une trappe à pauvreté où le taux de croissance de l'économie est faible et le niveau de l'éducation est peu élevé. Une politique de libéralisation financière peut alors améliorer la situation.
DATA ANALYSIS OF A LOW-POLONIUM-FIELD FOR THE DISCOVERY OF CNO NEUTRINOS IN BOREXINO
Creators: name: Gottel, Alexandre
Publisher: name: Zenodo
Year: 2021
Subjects: Low Energy Neutrinos

description: Parallel Flash Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: Alexandre Gottel for the Borexino Collaboration
Additional file 16 of Gregarine single-cell transcriptomics reveals differential mitochondrial remodeling and adaptation in apicomplexans
Creators: name: Salomaki, Eric D.
name: Terpis, Kristina X.
name: Rueckert, Sonja
name: Kotyk, Michael
name: Varadínová, Zuzana Kotyková
name: Čepička, Ivan
name: Lane, Christopher E.
name: Kolisko, Martin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 16: Fig. S10. Maximum likelihood trees for all mitochondrial genes discussed in this study inferred using IQtree (LG+C20+F+G). Support values are calculated from 100 RAxML rapid bootstraps under the PROTGAMMALG model. Sequences identified as apicomplexan homologs are colored in red, sequences in purple are suspected apicomplexan contamination of a host rather than the target organism.
title: National Saving–Investment Dynamics and International Capital Mobility
Creators: name: Pelgrin, Florian
name: Schich, Sebastian
Publisher: name: Bank of Canada
Year: 2004

description: The authors analyze the dynamics of national saving–investment relationships to determine the degree of international capital mobility. Following Coakley and Kulasi (1997), the authors interpret the close relationship between national saving and investment in the long run as reflecting a solvency constraint, rather than as evidence of limited capital mobility (Feldstein and Horioka 1980). As in Jansen (1996, 1998), the authors also examine the short-term saving–investment relationship, especially the speed at which the variables return to the long-run equilibrium relationship once they have deviated from it. The ease with which a country can borrow or lend and run current account imbalances in the short run, before it has to ultimately reverse the transaction at some future date to satisfy the solvency constraint, is interpreted as being positively related to the degree of international capital mobility. Extending the approach by Jansen, the authors apply panel error-correction techniques to data for 20 OECD countries from 1960 to 1999, and find that saving and investment display a long-run relationship that is consistent with the interpretation that a long-run solvency constraint is binding for each country. Furthermore, capital mobility has increased over time.
description: Les auteurs étudient la dynamique de la relation entre l'épargne et l'investissement national pour déterminer le degré de mobilité internationale du capital. Suivant les traces de Coakley et Kulasi (1997), ils interprètent cette étroite relation de long terme comme reflétant une contrainte de solvabilité plutôt que le degré de mobilité du capital (Feldstein et Horioka, 1980). À l'instar de Jansen (1996 et 1998), ils examinent également la relation de court terme entre l'épargne et l'investissement et, plus particulièrement, la vitesse à laquelle les variables reviennent à leur valeur d'équilibre. La facilité avec laquelle un pays peut emprunter ou prêter à court terme et enregistrer un déséquilibre persistant de sa balance courante, avant de devoir inverser le flux de capitaux pour satisfaire à la contrainte de solvabilité, est interprétée comme une fonction directe de la mobilité du capital. Dans la foulée des travaux de Jansen, les auteurs recourent aux techniques de l'économétrie des panels pour estimer sur la période 1960-1999 des modèles à correction d'erreurs portant sur un échantillon de 20 pays de l'OCDE. La relation de long terme qu'ils observent entre l'épargne et l'investissement est conforme à leur hypothèse voulant que chaque pays ait à respecter une contrainte de solvabilité en longue période. Ils montrent en outre que la mobilité du capital a augmenté au cours de la période considérée.
Imaging the Galactic Core with Neutrinos using a Gravitational Lens of the Sun
Creators: name: N. Solomey
name: B. Dotty
name: A. Dutta
name: J. Folkerts
name: K. Messick
name: H. Meyer
name: M. Christl
name: R. Taggart
name: B. Sutin
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
Additional file 17 of Gregarine single-cell transcriptomics reveals differential mitochondrial remodeling and adaptation in apicomplexans
Creators: name: Salomaki, Eric D.
name: Terpis, Kristina X.
name: Rueckert, Sonja
name: Kotyk, Michael
name: Varadínová, Zuzana Kotyková
name: Čepička, Ivan
name: Lane, Christopher E.
name: Kolisko, Martin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 17: Fig. S11. Maximum likelihood phylogeny of ADP-forming ACS reconstructed in IQtree (LG+C20+F+G) with support values from 100 non-parametric PMSF bootstrap replicates. Prokaryotes are blue, Apicomplexa, Squirmidea and chrompodellids are colored red, and other eukaryotes are shown in black. The topology shows moderately strong support for a laterally transferred ADP-forming ACS gene of prokaryotic origin to the shared ancestor of chrompodellids and apicomplexans.
A novel ratiometric fluorescent probe for detection of dopamine and cupric ions
Creators: name: Liu, Jingjing
name: Liang, Yongqi
name: Luan, Chunpeng
name: Kong, Youpeng
name: He, Fei
name: Liu, Siyu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences

description: In this paper, bovine serum albumin served as the initial materials for preparing a kind of cyan-emitting fluorescent protein nanoparticles (BSA NPs). The BSA NPs were further adopted as a template to synthesize protein nanoparticles-stabilized silver nanoclusters (BSA NPs@Ag NCs) that offered two well-separated fluorescence emission peaks respectively at 470 nm and 670 nm. Dopamine could specifically induce the fluorescence enhancement at 470 nm and the fluorescence quenching at 670 nm of BSA NPs@Ag NCs. Moreover, cupric ions could cause the fluorescence quenching at 670 nm of BSA NPs@Ag NCs just with a negligible impact on the fluorescence intensity at 470 nm. The BSA NPs@Ag NCs can serve as a ratiometric probe for detection of dopamine and cupric ions.
A search for Low Surface Brightness galaxies in the near-infrared III. Nancay HI line observation
Creators: name: Ragaigne, D. Monnier
name: van Driel, W.
name: Schneider, S. E.
name: Balkowski, C.
name: Jarrett, T. H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A total of 334 Low Surface Brightness galaxies detected in the 2MASS all-sky near-infrared survey have been observed in the 21 cm HI line using the Nancay telescope. All have a K_s-band mean central surface brightness, measured within a 5 arcsec radius, fainter than 18 mag/arcsec^2 and a K_s-band isophotal radius at the 20 mag/arcsec^2 level larger than 20 arcsec. We present global HI line parameters for the 171 clearly detected objects and the 23 marginal detections, as well as upper limits for the undetected objects. The 171 clear detections comprise 50 previously uncatalogued objects and 41 objects with a PGC entry only.
description: Accepted for publication by Astronomy and Astrophysics on 15 May 2003, 41 pages
The cosmological constant from Planckian fluctuations and the averaging procedure
Creators: name: Viaggiu, Stefano
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper I continue the investigation in \cite{1,1b} concerning my proposal on the nature of the cosmological constant. In particular, I study both mathematically and physically the quantum Planckian context and I provide, in order to depict quantum fluctuations and in absence of a complete quantum gravity theory, a semiclassical solution where an effective inhomogeneous metric at Planckian scales or above is averaged. In such a framework, a generalization of the well known Buchert formalism \cite{2} is obtained with the foliation in terms of the mean value $s(\hat{t})$ of the time operator $\hat{t}$ in a maximally localizing state $\{s\}$ of a quantum spacetime \cite{3,4,5,6} and in a cosmological context \cite{7}. As a result, after introducing a decoherence length scale $L_D$ where quantum fluctuations are averaged on, a classical de Sitter universe emerges with a small cosmological constant depending on $L_D$ and frozen in a true vacuum state (lowest energy), provided that the kinematical backreaction is negligible at that scale $L_D$. Finally, I analyse the case with a non-vanishing initial spatial curvature $\mathcal{R}$ showing that, for a reasonable large class of models, spatial curvature and kinematical backreation $\mathcal{Q}$ are suppressed by the dynamical evolution of the spacetime.
description: Accepted for publicationa in Foundations of Physics
title: The Bank of Canada's Business Outlook Survey: An Assessment
Creators: name: Martin, Monica
name: Papile, Cristiano
Publisher: name: Bank of Canada
Year: 2004

description: Since the autumn of 1997, the Bank of Canada's regional offices (located in Halifax, Montréal, Toronto, Calgary, and Vancouver) have conducted consultations with businesses across Canada on a quarterly basis. These consultations are now referred to as the Business Outlook Survey (BOS). The BOS provides a timely source of information on what businesses are experiencing and planning. Business consultations are timed to feed into the decision-making process that precedes the Bank's fixed dates for announcing monetary policy decisions. The consultations are structured around a questionnaire. Every quarter, 100 firms that reflect the diverse composition of the Canadian economy in terms of region, type of business activity, and firm size are interviewed. Because the BOS is a relatively new tool, the survey time series is short. The assessment presented in this paper, which is based on charts and correlations, is intended as an initial guide. The findings suggest that the survey serves as a barometer of the Canadian economy and provides leading signals of future activity. The interview responses also inform the Bank about production-capacity constraints, labour shortages, and inflation expectations.
description: Depuis l'automne 1997, les bureaux régionaux de la Banque du Canada, situés à Halifax, Montréal, Toronto, Calgary et Vancouver, mènent chaque trimestre des consultations auprès d'entreprises d'un bout à l'autre du pays. Maintenant désignée sous le nom d'enquête sur les perspectives des entreprises, cette initiative offre à la Banque un moyen de se renseigner rapidement sur les perceptions et les plans d'avenir des gens d'affaires. Afin que l'information recueillie puisse alimenter le processus décisionnel, le moment où l'enquête a lieu est déterminé par le calendrier arrêté pour l'annonce des décisions de politique monétaire. En s'appuyant sur un questionnaire, les bureaux régionaux interrogent chaque trimestre un groupe de 100 entreprises dont la composition par région, secteur d'activité et taille reflète celle de l'économie canadienne. Cet outil de consultation étant relativement jeune, les séries chronologiques ne sont pas très longues. Se fondant sur l'analyse de graphiques et de corrélations, l'auteure pose de premiers repères pour l'interprétation des données de l'enquête. Il ressort de son évaluation que l'enquête constitue un baromètre utile de la conjoncture économique au Canada et fournit des signaux avancés de l'activité future. Elle permet aussi à la Banque de réunir de l'information concernant les pressions s'exerçant sur la capacité de production, les pénuries de main-d'oeuvre et les attentes d'inflation.
Additional file 18 of Gregarine single-cell transcriptomics reveals differential mitochondrial remodeling and adaptation in apicomplexans
Creators: name: Salomaki, Eric D.
name: Terpis, Kristina X.
name: Rueckert, Sonja
name: Kotyk, Michael
name: Varadínová, Zuzana Kotyková
name: Čepička, Ivan
name: Lane, Christopher E.
name: Kolisko, Martin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 18: Fig. S12. Maximum likelihood phylogeny of malic enzyme reconstructed in IQtree (LG+C20+F+G) with support values from 100 non-parametric PMSF bootstrap replicates. Prokaryotes are blue, Apicomplexa, Squirmidea and chrompodellids are colored red, and other eukaryotes are shown in black. The topology shows strong support for an independent acquisition of malic enzyme by members of the Gregarinoidea through lateral gene transfer from proteobacteria. The malic enzyme sequenced in other eugregarines branches with members of the core apicomplexans, chrompodellids, and Squirmidea.