cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Staple Food Price Volatility and Its Policy Implications in Kenya
Creators: name: Nzuma, Jonathan M.
name: Karugia, T.J.
name: Wanjiku, J.
name: Wambua, J.
name: Kirui, Oliver K.
name: Nzuma, Jonathan M.
name: Karugia, T.J.
name: Wanjiku, J.
name: Wambua, J.
name: Kirui, Oliver K.
Publisher: name: Unknown
Year: 2013
Subjects: Agricultural and Food Policy
Demand and Price Analysis

description: This paper evaluates the trends in staple food price volatility in Kenya for maize, wheat and Irish potatoes relative to three other Eastern Africa countries (Ethiopia, Tanzania and Uganda) using the unconditional and the conditional standard deviation. The paper tests the volatility of food prices during the global food crisis of 2007–2008. Using monthly wholesale prices data for maize, wheat and Irish potatoes in Kenya for the period January 2003 to February 2012, the paper estimates the conditional and unconditional price volatility and compares it with similar estimates from Ethiopia, Uganda and Tanzania. Overall the volatility of commodity prices in Kenya as implied by the unconditional standard deviation is in the range of 12% to 32% with maize prices being the most volatile followed by Irish potatoes. Wheat prices are the least volatile in Kenya. Compared with the Eastern Africa region, maize and wheat markets in Kenya are more volatile than counterpart markets in Ethiopia, Tanzania and Uganda. Furthermore, Irish potato prices in Kenya are less volatile than markets in Ethiopia but more volatile than those in Uganda and Tanzania. Given the persistent commodity price volatility in Kenya, this study recommends several policy options to deal with price volatility. These include supply response stimulating programmes such as governments buying surplus as buffer stock at competitive prices; input subsidy programmes; food for work programmes targeted to the poor working in agriculture; and establishing market information systems to avail better information about prices and stock levels.
title: A Consistent Test for Multivariate Conditional Distributions
Creators: name: Li, Fuchun
name: Tkacz, Greg
Publisher: name: Bank of Canada
Year: 2009

description: We propose a new test for a multivariate parametric conditional distribution of a vector of variables yt given a conditional vector xt. The proposed test is shown to have an asymptotic normal distribution under the null hypothesis, while being consistent for all fixed alternatives, and having non-trivial power against a sequence of local alternatives. Monte Carlo simulations show that our test has reasonable size and good power for both univariate and multivariate models, even for highly persistent dependent data with sample sizes often encountered in empirical finance.
description: Les auteurs proposent un nouveau test en vue de vérifier la validité de la distribution conditionnelle paramétrique multivariée d'un vecteur de variables yt étant donné un vecteur conditionnel xt. Ils montrent que la statistique du test suit asymptotiquement une loi normale sous l'hypothèse nulle et que le test est convergent pour toutes les hypothèses alternatives spécifiées et relativement puissant sous une suite d'alternatives locales. D'après les résultats de simulations de Monte-Carlo, le niveau et la puissance du test sont raisonnables, que les modèles considérés soient univariés ou multivariés, même en cas de forte persistance des données dépendantes et d'échantillons de taille usuelle en finance empirique.
Mean ergodic composition operators in spaces of homogeneous polynomials
Creators: name: Jornet, David
name: Santacreu, Daniel
name: Sevilla-Peris, Pablo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We study some dynamical properties of composition operators defined on the space $\mathcal{P}(^m X)$ of $m$-homogeneous polynomials on a Banach space $X$ when $\mathcal{P}(^m X)$ is endowed with two different topologies: the one of uniform convergence on compact sets and the one defined by the usual norm. The situation is quite different for both topologies: while in the case of uniform convergence on compact sets every power bounded composition operator is uniformly mean ergodic, for the topology of the norm there is no relation between the latter properties. Several examples are given.
Value Chain Analysis of Smallholder Snap Bean Production in Kirinyaga County, Kenya
Creators: name: Odero, D.O.
name: Mburu, John I.
name: Ackello-Ogutu, Chris
name: Nderitu, J.H.
name: Odero, D.O.
name: Mburu, John I.
name: Ackello-Ogutu, Chris
name: Nderitu, J.H.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Snap beans
subject: Value chain analysis
subject: Value chain actors
subject: Value added
subject: Competitiveness

description: The paper aims to analyze the snap bean value chain and assess the competitiveness of small farmers and how the value-added benefits are shared by various participants of the value chain in Kirinyaga County, Kenya. We find that farmers had the lowest share of value added among the chain participants. For instance, in channel 1 the value-added share of small scale farmers was 15.6%, brokers 16.3%, processors had the highest share at 37.6% and retailers at 30.5%. Despite this, the small farmers were still competitive and that the entire chain was profitable in all the four channels that were analyzed. Shorter chains where brokers were excluded provided farmers higher benefits than longer chains. The mean value added for the chain actors were significantly different in all the four channels. Multiple comparisons test showed that all means, except between farmers and brokers, were different. The study recommends for policy interventions that seek to reduce the number of market intermediaries if commodity market chains have to be more beneficial to small farmers.
The Castro AMR Simulation Code: Current and Future Developments
Creators: name: Zingale, M.
name: Almgren, A. S.
name: Sazo, M. Barrios
name: Bell, J. B.
name: Eiden, K.
name: Harpole, A.
name: Katz, M. P.
name: Nonaka, A. J.
name: Willcox, D. E.
name: Zhang, W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We describe recent developments to the Castro astrophysics simulation code, focusing on new features that enable our simulations of X-ray bursts. Two highlights of Castro's ongoing development are the new integration technique to couple hydrodynamics and reactions to high order and GPU offloading. We discuss how these features will help offset some of the computational expense in X-ray burst models.
description: submitted to proceedings of AstroNum 2019
MOESM2 of Molecular signature of different lesion types in the brain white matter of patients with progressive multiple sclerosis
Creators: name: Elkjaer, Maria
name: Frisch, Tobias
name: Reynolds, Richard
name: Kacprowski, Tim
name: Burton, Mark
name: Kruse, Torben
name: Thomassen, Mads
name: Baumbach, Jan
name: Illes, Zsolt
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Additional file 2. The R script for analyzing differentially expressed genes
Detecting the Best Performing Time-Variant Cointegration Test Using the Consumption Function
Creators: name: Abdul Waheed, Abdul Rashid
Publisher: name: TuEngr Group
Year: 2021
Subjects: Null cointegration
Time Invariant
Time-Variant
Consumption Function
Fourier flexible form (FFF) function
Lagrange Multiplier (LM) test.

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 12, 4, 12A4Q: 1-5
Open AR-Sandbox: a Haptic Interface for Geoscience Education and Outreach
Creators: name: Wellmann, Jan Florian
name: Virgo, Simon
name: Escallon, Daniel
name: de la Varga Hormazabal, Miguel
name: Jüstel, Alexander Magnus
name: Wagner, Florian Michael
name: Kowalski, Julia
name: Fehling, Robin
Publisher: name: RWTH Aachen University
Year: 2021

description: Abstracts & presentations : EGU General Assembly 2021 EGU General Assembly 2021, vEGU21, online, 19 Apr 2021 - 30 Apr 2021; Göttingen : Copernicus Gesellschaft mbH EGU21-15031, 1 Seite (2021). doi:10.5194/egusphere-egu21-15031
description: Published by Copernicus Gesellschaft mbH, Göttingen
Rice Trade Protectionism Versus Liberalization in Nigeria: A CGE Analysis of Economic and Welfare Effects
Creators: name: Obi-Egbedi, Ogheneruemu
name: Okoruwa, Victor O.
name: Yusuf, Sulaiman A.
name: Adenegan, Kemisola O.
name: Alarudeen, Aminu
name: Obi-Egbedi, Ogheneruemu
name: Okoruwa, Victor O.
name: Yusuf, Sulaiman A.
name: Adenegan, Kemisola O.
name: Alarudeen, Aminu
Publisher: name: Unknown
Year: 2013
Subjects: subject: Consumer/Household Economics
subject: International Relations/Trade
subject: Rice trade policy
subject: tariff
subject: household welfare
subject: computable general equilibrium

description: Nigeria’s rice trade has been characterized by intermittent shifts between protectionist and liberalization trade policies over the years and little is known about the effects of these reforms on the entire economy. Past studies on Nigeria have only assessed the policies within the partial equilibrium framework. This study uses a static computable general equilibrium model to assess the effect of protectionist policy of 80% tariff increase and liberalization policy of 5% tariff reduction on production sectors, macroeconomic aggregates and households’ welfare in Nigeria. Simulation results reveal that output in the rice and other agriculture sectors increased more, by about 1%, under the liberalized policy than protectionist policy. Manufacturing and services sector increased in labor, composite price and returns to capital by less than 1% while the same fell under the protectionist policy. Almost all macroeconomic aggregates fell under both policies but with a greater magnitude under the protectionist policy. Wage rate increased under the liberalized policy only, by less than 1%. Although rural households’ incomes increased under protectionist policy, social welfare declined under both policies but was less with the 5% reduction in tariff. Hence this policy was recommended for adoption in order to increase growth of sectors and minimize welfare losses to households.
title: Real and Nominal Frictions within the Firm: How Lumpy Investment Matters for Price Adjustment
Creators: name: Johnston, Michael K.
Publisher: name: Bank of Canada
Year: 2009

description: Real rigidities are an important feature of modern sticky price models and are policy-relevant because of their welfare consequences, but cannot be structurally identified from time series. I evaluate the plausibility of capital specificity as a source of real rigidities using a two-dimensional generalized (s,S) model calibrated to micro evidence. Capital lumpiness reduces price stickiness as endogenous fluctuations in the marginal cost of output increase willingness to pay menu costs (an extensive effect), but increases price stickiness through complementarities (an intensive effect). The extensive effect warrants higher menu costs to match evidence on price changes, and the effects of complementarities prevail.
description: Les rigidités réelles sont une caractéristique importante des modèles modernes à prix rigides et présentent un intérêt certain pour la conduite de la politique monétaire en raison de leur incidence sur le bien-être, mais elles ne peuvent être identifiées structurellement à partir de séries chronologiques. À l’aide d’un modèle (s,S) généralisé bidimensionnel étalonné en fonction de données microéconomiques, l’auteur évalue s’il est plausible de considérer le capital spécifique à une entreprise comme une source de rigidités réelles. La possibilité pour une firme de modifier temporairement et de façon importante son niveau d’investissement a un double effet sur la rigidité des prix : d’une part, elle la réduit, les variations endogènes du coût marginal de production rendant les entreprises plus enclines à assumer les coûts d’étiquetage (effet extensif); d’autre part, elle l’accroît en raison de la présence de complémentarités (effet intensif). Étant donné l’effet extensif, des coûts d’étiquetage plus élevés sont nécessaires afin de reproduire la fréquence de révision des prix observée, et l’effet intensif prédomine.
Tunneling ionization of deep centers in high frequency electric fields
Creators: name: Ganichev, S. D.
name: Yassievich, I. N.
name: Prettl, W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Experimental and theoretical work on the ionization of deep impurity centers in the alternating terahertz field of high-intensity far-infrared laser radiation, with photon energies tens of times lower than the impurity ionization energy, is reviewed. It is shown that impurity ionization is due to phonon-assisted tunneling which proceeds at high electric field strengths into direct tunneling without involving phonons. In the quasi-static regime of low frequencies the tunneling probability is independent on frequency. Carrier emission is accomplished by defect tunneling in configuration space and electron tunneling through the potential well formed by the attractive force of the impurity and the externally applied electric field. The dependence of the ionization probability on the electric field strength permits to determine defect tunneling times, the structure of the adiabatic potentials of the defect, and the Huang-Rhys parameters of electron-phonon interaction. Raising the frequency leads to an enhancement of tunneling ionization and the tunneling probability gets frequency dependent. The transition from the frequency independent quasi-static limit to frequency dependent tunneling is determined by the tunneling time which is in the case of phonon asissted tunneling controlled by the temperature. This transition to the high-frequency limit represents the boundary between semiclassical physics, where the radiation field has a classical amplitude, and full quantum mechanics where the radiation field is quantized and impurity ionization is caused by multi-photon processes.
Plastics and microplastics – A future marker to reconstruct floodplain chronology (Opinion)
Creators: name: Weber, Collin J.
name: Lechthaler, Simone Elisabeth
name: Stauch, Georg
name: Opp, Christian
Publisher: name: RWTH Aachen University
Year: 2021

description: Abstracts & presentations : EGU General Assembly 2021 EGU General Assembly 2021, vEGU21, online, 19 Apr 2021 - 30 Apr 2021; Göttingen : Copernicus Gesellschaft mbH EGU21-62, 1 Seite (2021). doi:10.5194/egusphere-egu21-62
description: Published by Copernicus Gesellschaft mbH, Göttingen
Magnetogenesis in Higgs inflation
Creators: name: Kamarpour, Mehran
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the generation of magnetic fields in the Higgs inflation model with the axial coupling in order to break the conformal invariance of the Maxwell action and produce strong magnetic fields. We consider radiatively corrected Higgs inflation potential. In comparison to the Starobinsky potential, we obtain an extra term as a one loop correction and determine the spectrum of generalized electromagnetic fields. For two values of coupling parameter $χ_{1}=5\times 10^{9}$ and $χ_{1}=7.5\times 10^{9}$, the back-reaction is weak and our analysis is self-consistent.
description: 12 pages,6 figures
RESOURCE UTILIZATION BEHAVIOUR OF CASSAVA PRODUCERS IN EPE AREA OF LAGOS STATE: STOCHASTIC FRONTIER PRODUCTION FUNCTION APPROACH
Creators: name: Ogunbameru, A.
name: Okeowo, T.A.
name: Ogunbameru, A.
name: Okeowo, T.A.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Productivity Analysis
subject: Productivity
subject: Technical Efficiency
subject: Technical Inefficiency
subject: Farm Size
subject: Cassava
subject: Stochastic Frontier

description: The Stochastic frontier production function was used to assess the technical efficiency of cassava production in Epe Area of Lagos State, Nigeria. Results show that cassava farmers in the study area experienced increasing positive return-to-scale (2.2675. The study also reveals that a significant relationship exists between farm size, labour, planting materials, cost of other input and cassava output in the study area. Cassava farmers with large farmers are found to have higher net farm income per hectare than small holder farms in the study area. The study points to the fact that cassava farmers in the study area were not efficient in allocating their resources considering their scope of operation.
Orodaliscoides reflexus
Creators: name: Dellacasa, Marco
name: Dellacasa, Giovanni
name: Gordon, Robert D.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Orodaliscoides
Orodaliscoides reflexus

description: Orodaliscoides reflexus (Schmidt, 1910)
(Fig. 16-22)
 Aphodius reflexus Schmidt, 1910: 357; Blackwelder 1944: 213.
 Aphodius (Orodaliscoides) reflexus; Schmidt 1913: 145; 1922: 196; Dellacasa 1988: 188.
 Orodaliscoides reflexus; Smith and Skelley 2007: 28 (lectotype designation).
 Type locality. Prov. Chubut; [Patagonia] Argentina.
 Type repository. Naturhistoriska Riksmuseet, Stockholm (lectotype examined).
 Redescription. Length 5.0-6.0 mm; very elongate, convex, rather dull, glabrous. Yellowish-brown; elytra with sutural margin dark brown; legs yellowish-brown; antennal club yellowish. Head with epistome gibbous, almost evenly, sparsely, minutely punctured; punctures subgranulose; clypeus subtruncate anteriorly, widely round at sides, thinly bordered, edge strongly upturned, glabrous; genae widely round, elongately ciliate, moderately protruding from the eyes; frontal suture cariniform, not tuberculate; front finely, not closely punctured toward frontal suture only. Pronotum moderately transverse, strongly convex, simply, subregularly, not closely, moderately coarsely punctured, with a postero-medial longitudinal areola impunctate, somewhat depressed; lateral margins strongly arcuate, rather thickly bordered, edge elongately densely ciliate; hind angles broadly round; base faintly bisinuate, rather thickly bordered. Scutellum superficially alutaceous, finely punctured almost throughout. Elytra elongate, subparallelsided; epipleural carina densely elongately ciliate; striae rather fine, superficially punctured, feebly crenulate; interstriae slightly convex, finely alutaceous, glabrous, superficially sparsely irregularly punctured. Hind tibiae superior spur somewhat longer than first tarsal segment, latter as long as following two segments combined. Male: pronotum not narrowed anteriorly; fore tibiae spur stout and downward bent (Fig. 17); apical margin of hind tibiae denticulate before inferior spur (Fig. 18); aedeagus Fig. 21-22. Female: pronotum subquadrate, weakly narrowed anteriorly; fore tibiae spur slender and nearly straight.
 Remarks. The shape of epipharynx (Fig. 16) differs somewhat from that of the other Orodaliscoides species but the complex of morpho-anatomical characters indicate that, with some doubt, it belongs to this genus.
 Material examined. ARGENTINA: Prov. Chubut, leg. M. Richter (lectotype, NHRS); Camarones, Gob. Chubut, leg. J. Wiederrecht (1 paralectotype, NHRS); Prov. Mendoza, leg. M. Richter (1 paralectotype, NHRS); Bañadera, Prov. Neuquen, 11.XII.1972 (1 ex., DCGI).
 Distribution. Argentina (Chubut, Mendoza, Neuquén, Río Negro).
description: Published as part of Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2012, Systematic revision of the genus Orodaliscoides Schmidt, 1913 (Coleoptera: Scarabaeidae: Aphodiinae), pp. 1-9 in Insecta Mundi 2012 (269) on page 5, DOI: 10.5281/zenodo.5175668
Investigating the refractive index sensitivity of U-bent fiber optic sensors using ray optics
Creators: name: Danny, Christina Grace
name: Raj, M Danny
name: Sai, VVR
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Geometrically modified fiber optic sensors (FOS), particularly U-bent FOS, have gained significant attention due to their remarkably high refractive index (RI) and evanescent wave absorbance (EWA) sensitivity, as well as their ergonomic design and ease in handling. In this study, we present a theoretical model for the U-bent FOS probes, to predict the sensor behavior by numerically simulating the light propagation in an equivalent 2D semi-circular ring using ray tracing approach. In addition to the effects due to the modification of geometry, this study presents a thorough investigation of the influence of the bend-induced material deformation on the nature of light propagation and refractive losses. We introduce bend ratio (ratio of bend radius to fiber core radius), to explain the influence of geometry modification and the bend-induced inhomogeneity in RI (BIRI) of the fiber core on RI sensitivity. The bend ratio of bent plastic optical fiber sensors falls under one of the four bending regimes namely, gentle, geometric, saturation and plastic, for which the bend ratios are less than 35, 25, 17 and 7 respectively. The results also show that for bend ratios less than 7, BIRI inhomogeneity is responsible for the high RI sensitivity observed with U-bent probes as opposed to the simple geometric modification. This study also indicates the existence of an optimum bend ratio (for a given value of RI of the surrounding medium) where RI sensitivity is maximum. These findings were validated with previously reported experimental results.
description: Contains article and supporting information
title: Proteomic analysis of tendons at different risk of injury.
Creators: name: Sanders, K
Publisher: name: University of Liverpool Repository
Year: 2017

description: Tendon injury is a common problem in both human and veterinary medicine, which impacts on the both the quality of life of the individual in question but also a financial implication on the supporting health system. Previous research into the pathogenesis of tendon injury and also the healing and treatment options available are limited. This one year project aimed to advance our knowledge in proteomics of human and equine tendons by developing proteomic methodologies for the analysis of the normal protein composition. In order to build a proteomic tendon library three different protein extraction protocols were considered, urea, guanidine and Rapigest. Results revealed urea had a poor extraction ability and that guanidine and Rapigest had a better success rate. Further work to combine these to agents would be worthwhile in the future. Further to this to this analysing spatial distribution of these proteins was then investigated in equine tissue. This work made some progress in optimizing a protocol, finding trypsin digestion worked better when incubated for 16 hours and also when the digestion occurred with an ammonium bicarbonate buffer. The fourth chapter investigated whether it is possible to detect in vivo changes in the proteomic composition of dialysis fluid subsequent to shockwave therapy of human Achilles tendon. This study revealed that current methods were sensitive enough to ascertain the protein composition but further work is needed to ascertain what significant protein changes occur in response to therapy. Finally tendon protein turnover was explored in an in-vivo model. Results confirmed proteins within the non collagenous matrix had a higher rate of protein turnover compared to components of the collagenous matrix. All four projects have been the first of their kind so optimisiation and a ‘look and see’ approach was required, which has laid foundations for several subsequent studies.
title: What Accounts for the U.S.-Canada Education-Premium Difference?
Creators: name: Kryvtsov, Oleksiy
name: Ueberfeldt, Alexander
Publisher: name: Bank of Canada
Year: 2009

description: This paper analyzes the differences in wage ratios of university graduates to less than university graduates, the education premium, in Canada and the United States from 1980 to 2000. Both countries experienced a similar increase in the fraction of university graduates and a similar increase in skill biased technological change based on capital-embodied technological progress, but only the United States had a large increase in the education premium. Using a calibrated Krussel et al. (2000) model, the paper finds that the cross country difference is in equal proportion due to the effective stock of capital equipment, the growth in skilled labor supply relative to unskilled labor and the relative abundance of skilled population in 1980. Growth in the working age population is unimportant for the difference.
description: Les auteurs analysent la prime à l'éducation, c'est-à-dire la disparité salariale entre les diplômés du niveau universitaire et de niveau préuniversitaire, au Canada et aux États-Unis de 1980 à 2000. Si la proportion des diplômés d'université a crû de manière analogue dans ces deux pays, de même que le rythme du progrès technique intégré au capital et favorisant la demande de maind'oeuvre qualifiée, ce n'est qu'aux États-Unis que la prime à l'éducation a fortement augmenté. À l'aide d'une version étalonnée du modèle de Krusell et autres (2000), les auteurs constatent que l'écart entre le Canada et son voisin américain est imputable, à parts égales, au stock réel de biens d'équipement, à la croissance de la main-d'oeuvre qualifiée par rapport à la main-d'oeuvre non qualifiée et à la relative abondance des travailleurs qualifiés en 1980. La croissance de la population en âge de travailler n'est pas un facteur significatif.
title: Comparison of Auction Formats in Canadian Government Auctions
Creators: name: Armantier, Olivier
name: Lafhel, Nourredine
Publisher: name: Bank of Canada
Year: 2009

description: Using a rich sample of Canadian government securities auctions, we estimate the structural parameters of a share-auction model accounting for asymmetries across bidders. We find little evidence of asymmetries between participants at Canadian government nominal bond auctions. A counter-factual analysis also suggests that given the assumptions underlying the model used, including that participation and quality of information are exogenous, the discriminatory format currently in place is superior to the uniform-price format in terms of the revenue generated by the Canadian government. Both auction formats, however, are found, under the same assumptions, to be dominated by the so-called "Spanish auction" format.
description: À l'aide d'un riche échantillon d'adjudications de titres du gouvernement canadien, les auteurs estiment les paramètres structurels d'un modèle d'enchère pluri-unitaire qui tient compte de la présence éventuelle d'asymétries dans le comportement des soumissionnaires. Leurs résultats ne mettent en évidence aucune asymétrie majeure entre les participants aux adjudications d'obligations à rendement nominal. En outre, une analyse contrefactuelle donne à penser que, compte tenu des hypothèses qui sous-tendent le modèle des auteurs, dont celle voulant que le degré de participation et la qualité de l'information soient des variables exogènes, le mode actuel d'adjudication à prix multiples rapporte au gouvernement canadien des revenus supérieurs à ceux que l'on obtiendrait au moyen d'enchères à prix uniforme. Il semble toutefois qu'à ce chapitre, la forme d'adjudication « à l'espagnole » dominerait les deux autres formes, toujours selon les mêmes hypothèses.
On the efficiency of the Ultra Steep Spectrum technique in finding High-z Radiogalaxies
Creators: name: Pedani, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the last three decades, the Ultra Steep spectrum tecnique has been exploited by many groups since it was demonstrated that radio sources with very steep spectra (Alpha < -1.0) are good tracers of high-z radio galaxies (HzRGs; z>2). Though more than 150 HzRGs have been discovered up to now with this tecnique, little is known about its real effectiveness, as most of the ongoing searches still have incomplete follow-up programs. By selecting a new appropriate sample of USS sources from the MRC survey, the true searching efficiency of the USS tecnique has been quantitatively demonstrated for the first time in this paper. Moreover it was compared with that of an optical search of HzRGs based on a simple cut of the galaxies r-band magnitude distribution. When no bias other than the radio-spectrum steepness is applied, the USS tecnique may be up to 4 times more efficient in selecting HzRGs with respect to an optical search. Nevertheless, when the search is limited to objects fainter than the POSS-II plates (r~21), the USS tecnique is still 2.5 times more efficient (epsilonUSS =0.52 vs. epsilon_OPT= 0.19). For an optical search to reach a comparable efficiency it is necessary to select objects fainter than r=23, but this implies that about half of the HzRGs are lost because of the imposed magnitude bias. The advantage of the USS tecnique is that a ~0.5 search efficiency is already reached at the POSS-II plates limit, where all the optical identification work is done without telescopes. However, this tecnique has the drawback that up to 40% of the HzRGs of the sample are lost simply because of the applied spectral index bias.
description: 17 pages, 6 figures; Accepted for publication in New Astronomy
An Integrated Framework for Smart Collge based on the Fourth Industrial Revolution
Creators: name: Alotaibi, Sultan Refa
Publisher: name: TuEngr Group
Year: 2021
Subjects: Virtual reality (VR)
Augmented reality (AR)
Big data
Elearning
Cloud-based systems
Internet of things (IoT)
Wearable technology
3D printing
Blockchain
Smart University
Smart learning (S learning).

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 12, 4, 12A4R: 1-18
Lambda(1520) production at SPS and RHIC energies
Creators: name: Markert, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The recent preliminary results from central Au+Au collisions at $\sqrt{s_{\rm NN}} = $ 130 GeV from the STAR experiment at RHIC are presented and discussed along with the results on the $Λ$(1520) production in cental Pb+Pb and p+p collisions at $\sqrt{s} = $ 17 GeV from the NA49 experiment at the SPS. The $Λ$(1520) is measured with the invariant mass reconstruction of the decay products in the hadronic channel (K$^{-}$, p). The mean $Λ$(1520) multiplicity scaled by the number of participants decreases from p+p to Pb+Pb collisions at the same energy of $\sqrt{s}$ = 17 GeV. An upper limit estimate of the multiplicity from the first measurement at $\sqrt{s_{\rm NN}} = $ 130 GeV shows the same trend. Comparisons with model predictions provides an indication of possible medium effects on the resonance and their decay daughters.
description: 7 pages, proceedings of Strange Quarks in Matter (SQM2001), Frankfurt, Germany
title: Inventories, Markups, and Real Rigidities in Menu Cost Models
Creators: name: Kryvtsov, Oleksiy
name: Midrigan, Virgiliu
Publisher: name: Bank of Canada
Year: 2009

description: Real rigidities that limit the responsiveness of real marginal cost to output are a key ingredient of sticky price models necessary to account for the dynamics of output and inflation. We argue here, in the spirit of Bils and Kahn (2000), that the behavior of marginal cost over the cycle is directly related to that of inventories, data on which is readily available. We study a menu cost economy in which firms hold inventories in order to avoid stockouts and to economize on fixed ordering costs. We find that, for low rates of depreciation similar to those in the data, inventories are highly sensitive to changes in the cost of holding and acquiring them over the cycle. This implies that the model requires an elasticity of real marginal cost to output approximately equal to the inverse of the elasticity of intertemporal substitution in order to account for the countercyclical inventory-to-sales ratio in the data. Stronger real rigidities lower the cost of acquiring and holding inventories during booms and counterfactually predict a procyclical inventory-to-sales ratio.
description: Les rigidités réelles qui limitent la sensibilité du coût marginal réel aux fluctuations de la production sont un élément essentiel des modèles à prix rigides, nécessaire pour rendre compte de la dynamique de la production et de l'inflation. Dans l'esprit de Bils et Kahn (2000), les auteurs avancent que le comportement du coût marginal au cours du cycle est directement lié à celui des stocks, sur lesquels il est facile d'obtenir des données. Ils étudient une économie où il est coûteux de modifier les prix et où les entreprises détiennent des stocks afin de ne pas rater de ventes et de réaliser des économies sur les coûts fixes de passation des commandes. Les auteurs constatent que, en présence de bas taux de dépréciation similaires à ceux que l'on observe dans les données, les stocks sont très sensibles aux variations de leurs coûts d'acquisition et de détention sur la durée du cycle. Pour rendre compte du caractère anticyclique du ratio stocks/ventes d'après les données, le modèle doit donc intégrer une élasticité du coût marginal réel par rapport à la production qui soit approximativement égale à l'inverse de l'élasticité de substitution intertemporelle. Des rigidités réelles plus accusées ont pour effet d'abaisser les coûts d'acquisition et de détention des stocks en période de forte expansion et débouchent sur la prévision d'un ratio stocks/ventes procyclique contraire à la réalité.
Remigrējušo skolas vecuma bērnu adaptācija skolas dzīvei Latvijā
Creators: name: Grosa, Daina
Publisher: name: Zenodo
Year: 2021
Subjects: migration
sociology
Latvia
diaspora
liquid migration
remigration
return migration

description: Politikas rekomendāciju sērijā — īsi praktiski secinājumi par galveniem migrācijas pētījumu virzieniem. Īsumā Jo jaunāks bērns, jo teorētiski bērnam ir vieglāk iekļauties jaunā vidē, bet ne vienmēr tā sanāk. Valsts valodas prasmju līmenis var radīt šķēršļus bērna integrācijai, īpaši vidusskolas vecumā. Ne visiem pedagogiem ir bijusi saskarsme ar jaunpienākušām ģimenēm, kas dzīvojušas ārpus Latvijas, un viņiem nav zināšanu bāzes par to, kā palīdzēt bērniem iejusties skolas vidē. Direktora darbs ar remigrējušām ģimenēm ir novērst problēmsituācijas. Tā kā remigrantu ģimenēm saskarsme ar Latvijas skolām, iespējams, nav bijusi kopš vecāku pašu skolas laikiem, ne visiem ir skaidra Latvijas izglītības sistēma. Vecāku iesaiste bērnu skolas dzīvē ārpus Latvijas un Latvijā ir atšķirīga. Bērnu labsajūta jaunā vidē ir atkarīga arī no katra indivīda rakstura (piem., kautrība, baiļu sajūta, introvertība, dzīves maiņu akceptēšana), ko nav tik vienkārši mainīt.
title: Assessing Indexation-Based Calvo Inflation Models
Creators: name: Dufour, Jean-Marie
name: Khalaf, Lynda
name: Kichian, Maral
Publisher: name: Bank of Canada
Year: 2009

description: Using identification-robust methods, the authors estimate and evaluate for Canada and the United States various classes of inflation equations based on generalized structural Calvo-type models. The models allow for different forms of frictions and vary in their assumptions regarding the type of price indexation adopted by firms. Point and confidence-set parameter estimates are obtained based on the inversion of identification-robust test statistics. Focus is maintained on the structural aspect of the model with formal imposition of the restrictions that map the theoretical model into the econometric one. The results show that there is some statistical merit to using indexation-based Calvo-type models for inflation. However, some identification difficulties are also uncovered with considerable uncertainty associated with estimated parameter values. In particular, we find that implausibly-high frequency of price re-optimization values cannot be ruled out from our identification-robust confidence sets.
description: À l'aide de méthodes d'inférence robustes sur le plan de l'identification, les auteurs estiment et évaluent, pour le Canada et les États-Unis, plusieurs classes d'équations d'inflation fondées sur des modèles structurels généralisés comportant un mécanisme de révision des prix à la Calvo. Ces modèles autorisent des frictions diverses et définissent le type d'indexation des prix adopté par les entreprises selon différentes hypothèses. Les auteurs obtiennent une estimation ponctuelle des paramètres et déterminent une région de confiance en inversant le résultat de tests d'inférence robustes. Les restrictions qu'implique le modèle théorique sont imposées au modèle économétrique afin de maintenir la dimension structurelle du modèle. Les résultats révèlent une certaine légitimité statistique des modèles à la Calvo avec indexation des prix aux fins de la prévision de l'inflation. Ces modèles présentent cependant certains problèmes d'identification puisqu'une forte incertitude entache les valeurs estimées des paramètres. Les auteurs n'arrivent notamment pas à exclure des régions de confiance calculées des fréquences de révision des prix trop élevées pour être vraisemblables.
Recasting Navier-Stokes Equations
Creators: name: Reddy, M. H. Lakshminarayana
name: Dadzie, S. Kokou
name: Ocone, Raffaella
name: Borg, Matthew K.
name: Reese, Jason M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: 35Q30, 35Q35

description: Classical Navier-Stokes equations fail to describe some flows in both the compressible and incompressible configurations. In this article, we propose a new methodology based on transforming the fluid mass velocity vector field to obtain a new class of continuum models. We uncover a class of continuum models which we call the re-casted Navier-Stokes. They naturally exhibit the physics of previously proposed models by different authors to substitute the original Navier-Stokes equations. The new models unlike the conventional Navier-Stokes appear as more complete forms of mass diffusion type continuum flow equations. They also form systematically a class of thermo-mechanically consistent hydrodynamic equations via the original equations. The plane wave analysis is performed to check their linear stability under small perturbations, which confirms that all re-casted models are spatially and temporally stable like their classical counterpart. We then use the Rayleigh-Brillouin scattering experiments to demonstrate that the re-casted equations may be better suited for explaining some of the experimental data where original Navier-Stokes fail.
title: Optimal Policy under Commitment and Price Level Stationarity
Creators: name: Cateau, Gino
Publisher: name: Bank of Canada
Year: 2009

description: This paper proposes a simple analytical method to determine the stationarity of an unnormalized variable from the solution to a normalized model i.e. a model whose variables must be expressed in relative terms or must be differenced for a solution to exist. The paper then applies the method to answer a question of interest to policy-makers: does optimal policy under commitment lead to stationarity in the price level? Unlike Gaspar, Smets, and Vestin (2007), the paper finds that optimal policy under commitment does not lead to price level stationarity in the Smets and Wouters (2003) model.
description: L'auteur propose une méthode analytique simple pour déterminer la stationnarité d'une variable non normalisée à partir de la solution d'un modèle normalisé – c'est-à-dire un modèle dont on a exprimé les variables en termes relatifs ou sous la forme de différences afin de pouvoir le résoudre. Il se sert de cette méthode pour répondre à une question importante pour les autorités monétaires : l'application d'une politique monétaire optimale permet-elle d'atteindre la stationnarité du niveau des prix? Contrairement à Gaspar, Smets et Vestin (2007), l'auteur conclut que la politique optimale ne conduit pas à la stationnarité du niveau des prix dans le modèle de Smets et Wouters (2003).
MOESM1 of Patient and system factors associated with unassisted and injurious falls in hospitals: an observational study
Creators: name: Venema, Dawn
name: Skinner, Anne
name: Nailon, Regina
name: Conley, Deborah
name: High, Robin
name: Jones, Katherine
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology

description: Additional file 1. CAPTURE Falls Event Reporting Form. Standardized reporting form (.pdf) used to collect patient and system data about fall events.
title: Inventories and Real Rigidities in New Keynesian Business Cycle Models
Creators: name: Kryvtsov, Oleksiy
name: Midrigan, Virgiliu
Publisher: name: Bank of Canada
Year: 2009

description: Kryvtsov and Midrigan (2008) study the behavior of inventories in an economy with menu costs, fixed ordering costs and the possibility of stock-outs. This paper extends their analysis to a richer setting that is capable of more closely accounting for the dynamics of the US business cycle. We find that the original conclusion survives in this setting: namely, the model requires an elasticity of real marginal cost to output approximately equal to the inverse intertemporal elasticity of substitution in consumption in order to account for the countercyclicality of the aggregate inventory-to-sales ratio in the data.
description: Kryvtsov et Midrigan (2008) ont étudié le comportement des stocks dans une économie où il est coûteux de modifier les prix, où la passation de commandes est assortie de coûts fixes et où les entreprises peuvent rater des ventes. Cette fois, les auteurs transposent leur analyse dans un modèle plus évolué capable de rendre compte au plus près de la dynamique du cycle de l'économie américaine. Leur conclusion initiale s'y voit corroborée. Pour rendre compte de l'évolution anticyclique du ratio agrégé stocks/ventes d'après les données, le modèle doit bel et bien intégrer une élasticité du coût marginal réel par rapport à la production qui soit approximativement égale à l'inverse de l'élasticité de substitution intertemporelle de la consommation.
MOESM1 of Molecular signature of different lesion types in the brain white matter of patients with progressive multiple sclerosis
Creators: name: Elkjaer, Maria
name: Frisch, Tobias
name: Reynolds, Richard
name: Kacprowski, Tim
name: Burton, Mark
name: Kruse, Torben
name: Thomassen, Mads
name: Baumbach, Jan
name: Illes, Zsolt
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Computational Biology

description: Additional file 1. Supplementary Methods
Deep Super-Resolution Network for Single Image Super-Resolution with Realistic Degradations
Creators: name: Umer, Rao Muhammad
name: Foresti, Gian Luca
name: Micheloni, Christian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Single Image Super-Resolution (SISR) aims to generate a high-resolution (HR) image of a given low-resolution (LR) image. The most of existing convolutional neural network (CNN) based SISR methods usually take an assumption that a LR image is only bicubicly down-sampled version of an HR image. However, the true degradation (i.e. the LR image is a bicubicly downsampled, blurred and noisy version of an HR image) of a LR image goes beyond the widely used bicubic assumption, which makes the SISR problem highly ill-posed nature of inverse problems. To address this issue, we propose a deep SISR network that works for blur kernels of different sizes, and different noise levels in an unified residual CNN-based denoiser network, which significantly improves a practical CNN-based super-resolver for real applications. Extensive experimental results on synthetic LR datasets and real images demonstrate that our proposed method not only can produce better results on more realistic degradation but also computational efficient to practical SISR applications.
description: 7 pages
DEVELOPMENT OF THE SEMANTICS OF AN UZBEK DICTIONARY OF POLITICAL TERMS
Creators: name: Holjuraeva, Maftunabonu
Publisher: name: Zenodo
Year: 2025

description: Dictionary semantics is one of the important areas for the disciplines of linguistics and lexicography. The representation of word meanings in dictionaries, their systematic development, and the opinions of various scholars on this subject make a great contribution to the development of lexicology. In this article, we will talk about how dictionary semantics is developed, who has conducted what research in this area, and which scholars' opinions are noteworthy.
GM vs. Non-GM: A Survival Analysis of U.S. Hybrid Seed Corn
Creators: name: Ma, Xingliang
name: Shi, Guanming
name: Ma, Xingliang
name: Shi, Guanming
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: GM technology
subject: market structure
subject: survival analysis
subject: United States hybrid seed corn

description: We analyze the rate of survival of hybrid seed corn in the U.S. market between 2000 and 2007 and find that product characteristics and market structures have significant impacts. The results suggest that survival rates depend on spillover effects of learning regarding genetically modified seeds and close substitute seeds and that hybrids planted in the Corn Belt survive longer in the market than hybrids planted in other parts of the country. Given increasing concentration in seed and agricultural biotechnology sectors, our results shed light on factors that affect the survival of hybrid corn seeds under various market conditions.
A Correlational Study of Organizational Culture and Workforce Diversity & Competitiveness in a Challenging Global Educational Environment
Creators: name: Inass Salamah Ali
Publisher: name: TuEngr Group
Year: 2021
Subjects: Organizational culture
Workforce diversity
Education environment
Transparency
Employee competitiveness
Trust
Organizational justice
Interpersonal relationship
University employee.

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 12, 4, 12A4S: 1-13