Search results for "holding"
showing 10 items of 123 documents
Tensor product multiresolution analysis with error control for compact image representation
2002
A class of multiresolution representations based on nonlinear prediction is studied in the multivariate context based on tensor product strategies. In contrast to standard linear wavelet transforms, these representations cannot be thought of as a change of basis, and the error induced by thresholding or quantizing the coefficients requires a different analysis. We propose specific error control algorithms which ensure a prescribed accuracy in various norms when performing such operations on the coefficients. These algorithms are compared with standard thresholding, for synthetic and real images.
Recommendations for eye care during the alarm state by the coronavirus disease pandemic COVID-19.
2020
Abstract Objective Minimize exposure to the SARS-CoV-2, reduce the chances of cross-transmission between patients and healthcare personnel, and prevent the development of postoperative complications from the management of patients with eye diseases during the 2019 coronavirus disease pandemic (COVID-19). Methods COVID-19 literature review and consensus establishment between different Spanish ophthalmology societies in order to provide guidelines and recommendations of maximum resources primarily conditioned by the state of alert, confinement and social distancing that occurs in Spain since March 16, 2020. Results The recommendations will promote the adoption of action and protection measure…
Thresholding projection estimators in functional linear models
2008
We consider the problem of estimating the regression function in functional linear regression models by proposing a new type of projection estimators which combine dimension reduction and thresholding. The introduction of a threshold rule allows to get consistency under broad assumptions as well as minimax rates of convergence under additional regularity hypotheses. We also consider the particular case of Sobolev spaces generated by the trigonometric basis which permits to get easily mean squared error of prediction as well as estimators of the derivatives of the regression function. We prove these estimators are minimax and rates of convergence are given for some particular cases.
Corporate Investment, Debt and Liquidity Choices in the Light of Financial Constraints and Hedging Needs
2015
We examine firms' simultaneous choice of investment, debt financing and liquidity in a large sample of US corporates between 1980 and 2014. We partition the sample according to the firms' financial constraints and their needs to hedge against future shortfalls in operating income. In contrast to earlier work, our joint estimation approach shows that cash flows affect the corporate decisions of unconstrained firms more strongly than those of constrained firms. Investment-cash flow sensitivities are particularly intense for unconstrained firms with high hedging needs. Investment opportunities (as proxied by Q), however, play a larger role for constrained firms with the effects being strongest…
OS ECJ-TF 2/2016 on the Decision of the Court of Justice of the European Union of 13 July 2016 in Brisal and KBC Finance Ireland (Case C-18/15), on t…
2016
This article examines the decision of the CJEU in Brisal and KBC Finance Ireland (Case C-18/15) of 13 July 2016. Following a Portuguese reference for a preliminary ruling, the Court's decision provides further clarification on the permissibility of withholding taxation within the European Union. In relation to interest, the Court held that non-resident taxpayers may be subject to withholding taxes (even if comparable residents pursuing the same activity are not) but that non-residents may nevertheless not be taxed on gross income (when comparable residents are taxed on net profits) and are, therefore, entitled to deduct expenses directly connected to their business activity.
Determinants of required returns in venture capital investments: a five country study
2002
Abstract Using two complementary theoretical perspectives, we develop hypotheses regarding the determinants of the return required by venture capitalists and test them on a sample of over 200 venture capital companies (VCCs) located in five countries. Consistent with resource-based theory, we find that early-stage specialists require a significantly higher return than other VCCs when investing in later-stage ventures. Consistent with financial theory, we find that acquisition/buyout specialists require a significantly lower return than other VCCs when investing in expansion companies. Furthermore, in comparison to specialists, highly stage-diversified VCCs require a significantly higher ret…
LU Filoloģijas un filozofijas fakultātes bibliotēkas krājuma veidošanās pirmskara periodā
2017
The faculties of the humanities of the newly established University of Latvia had to create their libraries from the ground up, as opposed to the technical libraries who had partly preserved the stocks from the departments of the predecessor, the RPI. Books for the library of the Faculty of Philology and Philosophy were obtained through governmental allocations, purchases, and donations, and so it grew from 350 books in 1919 to more than 40 thousand in 1939. This article explores the first years of the formation of library holdings.
Semi-automated and interactive segmentation of contrast-enhancing masses on breast DCE-MRI using spatial fuzzy clustering
2022
Abstract Multiparametric Magnetic Resonance Imaging (MRI) is the most sensitive imaging modality for breast cancer detection and is increasingly playing a key role in lesion characterization. In this context, accurate and reliable quantification of the shape and extent of breast cancer is crucial in clinical research environments. Since conventional lesion delineation procedures are still mostly manual, automated segmentation approaches can improve this time-consuming and operator-dependent task by annotating the regions of interest in a reproducible manner. In this work, a semi-automated and interactive approach based on the spatial Fuzzy C-Means (sFCM) algorithm is proposed, used to segme…
Impact of Safety-Related Dose Reductions or Discontinuations on Sustained Virologic Response in HCV-Infected Patients: Results from the GUARD-C Cohor…
2015
Background: Despite the introduction of direct-acting antiviral agents for chronic hepatitis C virus (HCV) infection, peginterferon alfa/ribavirin remains relevant in many resource-constrained settings. The non-randomized GUARD-C cohort investigated baseline predictors of safety-related dose reductions or discontinuations (sr-RD) and their impact on sustained virologic response (SVR) in patients receiving peginterferon alfa/ribavirin in routine practice. Methods: A total of 3181 HCV-mono-infected treatment-naive patients were assigned to 24 or 48 weeks of peginterferon alfa/ribavirin by their physician. Patients were categorized by time-to-first sr-RD (Week 4/12). Detailed analyses of the i…
Notion d'holding animatrice
2020
International audience; Note sous Cour de cassation (com.), 19 juin 2019, n° 17-20.556 (F-D), n° 17-20.557 (F-D), n° 17-20.558 (F-D), n° 17-20.559 (F-D) et n° 17-20.560 (F-D), DRFIP c/ D.