Search results for "Conditional"
showing 10 items of 294 documents
Lag-specific transfer entropy as a tool to assess cardiovascular and cardiorespiratory information transfer
2014
In the study of interacting physiological systems, model-free tools for time series analysis are fundamental to provide a proper description of how the coupling among systems arises from the multiple involved regulatory mechanisms. This study presents an approach which evaluates direction, magnitude, and exact timing of the information transfer between two time series belonging to a multivariate dataset. The approach performs a decomposition of the well-known transfer entropy (TE) which achieves 1) identifying, according to a lag-specific information-theoretic formulation of the concept of Granger causality, the set of time lags associated with significant information transfer, and 2) assig…
Conditional net survival: Relevant prognostic information for colorectal cancer survivors. A French population-based study
2015
Abstract Background Traditionally, survival estimates have been reported as survival from the time of diagnosis. A patient's probability of survival changes according to time elapsed since the diagnosis and this is known as conditional survival. The aim was to estimate 5-year net conditional survival in patients with colorectal cancer in a well-defined French population at yearly intervals up to 5 years. Methods Our study included 18,300 colorectal cancers diagnosed between 1976 and 2008 and registered in the population-based digestive cancer registry of Burgundy (France). We calculated conditional 5-year net survival, using the Pohar Perme estimator, for every additional year survived afte…
Mechanisms of causal interaction between short-term RR interval and systolic arterial pressure oscillations during orthostatic challenge
2013
The transition from the supine to the upright position requires a reorganization of the mechanisms of cardiovascular control that, if not properly accomplished, may lead to neurally mediated syncope. We investigated how the patterns of causality between systolic arterial pressure (SAP) and cardiac RR interval were modified by prolonged head-up tilt using a novel nonlinear approach based on corrected conditional entropy (CCE) compared with the standard approach exploiting the cross-correlation function (CCF). Measures of coupling strength and delay of the causal interactions from SAP to RR and from RR to SAP were obtained in 10 patients with recurrent, neurally mediated syncope (RNMS) and 10…
Location of Gliomas in Relation to Mobile Telephone Use: A Case-Case and Case-Specular Analysis
2011
The energy absorbed from the radio-frequency fields of mobile telephones depends strongly on distance from the source. The authors' objective in this study was to evaluate whether gliomas occur preferentially in the areas of the brain having the highest radio-frequency exposure. The authors used 2 approaches: In a case-case analysis, tumor locations were compared with varying exposure levels; in a case-specular analysis, a hypothetical reference location was assigned for each glioma, and the distances from the actual and specular locations to the handset were compared. The study included 888 gliomas from 7 European countries (2000-2004), with tumor midpoints defined on a 3-dimensional grid …
Do aging employees benefit from self-regulative strategies? : A follow-up study
2020
SOC-strategies (selection, optimization, and compensation) are crucial for well-being and adaptation throughout the life course. The workforce is aging rapidly, thus the age-conditional premises of SOC theory require attention. This study explored (1) whether older employees used SOC strategies more often (compared to younger employees), and (2) whether older employees benefited more from SOC strategies in relation to occupational well-being (job burnout, work engagement). The study was based on follow-up data including three occupational subsamples of different age (N = 1,020). There were no significant age-conditional differences in the take-up of SOC strategies. However, older (white-col…
Interruption of CD28-mediated costimulation during allergen challenge protects mice from allergic airway disease
2012
Background Allergic asthma is a T H 2-promoted hyperreactivity with an immediate, IgE, and mast cell–dependent response followed by eosinophil-dominated inflammation and airway obstruction. Objective Because costimulation by CD28 is essential for T H 2 but not T H 1 responses, we investigated the effect of selective interference with this pathway in mice using the models of ovalbumin and house dust mite–induced airway inflammation. Methods To study the role of CD28 in the effector phase of allergic airway inflammation, we developed an inducibly CD28-deleting mouse strain or alternatively used a CD28 ligand-binding site–specific mouse anti-mouse mAb blocking CD28 engagement. Results We show …
Diagnostyka sądowo-kryminalna w orzekaniu i wykonywaniu warunkowego przedterminowego zwolnienia w teorii i praktyce sądowej – raport z badania
2019
Niniejsza praca stanowi podsumowanie projektu badawczego Diagnostyka sądowo-kryminalna w orzekaniu i wykonywaniu warunkowego przedterminowego zwolnienia w teorii i praktyce sądowej, zrealizowanego przez Instytut Wymiaru Sprawiedliwości. Celem projektu, w tym w szczególności przeprowadzonego w jego ramach badania empirycznego, było (m.in.) zweryfi kowanie twierdzenia, w myśl którego w pracy administracji jednostek penitencjarnych oraz sądów penitencjarnych występują niedostatki profesjonalnej i pogłębionej prognozy kryminologicznej. W ramach badania empirycznego przeprowadzono analizę 540 spraw, w których w drugim kwartale 2013 r. pozytywnie rozpatrzono wnioski o udzielenie skazanym warunkow…
Topological Dual Systems for Spaces of Vector Measure p-Integrable Functions
2016
[EN] We show a Dvoretzky-Rogers type theorem for the adapted version of the q-summing operators to the topology of the convergence of the vector valued integrals on Banach function spaces. In the pursuit of this objective we prove that the mere summability of the identity map does not guarantee that the space has to be finite dimensional, contrary to the classical case. Some local compactness assumptions on the unit balls are required. Our results open the door to new convergence theorems and tools regarding summability of series of integrable functions and approximation in function spaces, since we may find infinite dimensional spaces in which convergence of the integrals, our vector value…
Boghossian's Reductio of Compatibilism
1998
Según Boghossian, la compatibilidad entre el externismo respecto del contenido y el autoconocimiento implica el absurdo según el cual es posible conocer a priori verdades substantivas sobre el mundo, como que existe agua. El argumento de Boghossian descansa crucialmente en dos supuestos: en primer lugar, que el carácter composicional o atómico son propiedades internas de los conceptos; en segundo lugar, que el externalismo no puede dar cuenta de conceptos atómicos con extensión vacía. Ambos supuestos se ponen en cuestión en este artículo. Por una parte, el externismo puede concebir plausiblemente el carácter composicional o atómico de los conceptos como dependiente de la naturaleza real de …
Probabilities of conditionals and previsions of iterated conditionals
2019
Abstract We analyze selected iterated conditionals in the framework of conditional random quantities. We point out that it is instructive to examine Lewis's triviality result, which shows the conditions a conditional must satisfy for its probability to be the conditional probability. In our approach, however, we avoid triviality because the import-export principle is invalid. We then analyze an example of reasoning under partial knowledge where, given a conditional if A then C as information, the probability of A should intuitively increase. We explain this intuition by making some implicit background information explicit. We consider several (generalized) iterated conditionals, which allow…