Search results for "source"

Interaction risk with proton pump inhibitors in general practice: significant disagreement between different drug-related information sources.

2006

Aims To compare information on drug–drug interactions (DDIs) reported on two standard drug-related information sources (Summary of Product Characteristics and Drugdex system by Micromedex), by assessing the prevalence and predictors of potential DDI with proton pump inhibitors (PPIs) in general practice. Methods From the ‘Caserta-1’ Local Health-Service database, 156 general practitioners (GPs) were recruited. From more than 180 000 individuals registered on their lists, we selected patients receiving co-prescription of PPI and medications at interaction risk, according to the Italian Summary of Product Characteristics (SPC) of PPI and Drugdex information, during the year 2003. Thereafter, …

Protective and Risk Factors for Adolescent Substance Use in Spain: Self-Esteem and Other Indicators of Personal Well-Being and Ill-Being

2020

Although self-esteem has traditionally been considered as an important correlate of psychosocial adjustment, some empirical studies have found a positive relationship between some domains of self-esteem and drug use among adolescents. The present study analyzes self-esteem and other adjustment personal indicators as protective or risk factors for substance use. Participants were 644 Spanish adolescents aged 12&ndash

Dual-Source Computed Tomography (DSCT) Angiography for the Visualization of Coronary Artery Bypass Grafts (CABG)

2007

The Social State Based on the Rule of Law in the Europe of Rights

2012

Chapter 8 shows how the idea of the social State under the rule of law has been linked to the European Union since its inception. The founding fathers (Adenaeur, de Gasperi, Monet, Schuman) set the principles of dignity, freedom, equality and solidarity as a way of freeing European citizens from fear, misery and misfortune. Welfare is, above all, a state of justice that defines the threshold between indecency and well-being and affirms that human development is not (only) economic growth. Jacques Maritain, whose influence on the European Union is well known, proclaimed the order that contains the three principles of the social state: the primacy of the person, the priority of civil society …

La igualdad de recursos de Ronald Dworkin: ¿una concepción fallida? | Dworkin’s Equality of Resources, a failed account?

2014

Resumen: Este artículo analiza la igualdad de recursos planteada por Ronald Dworkin. Sostiene que la propuesta es exitosa a la hora de mostrar que, bien entendida, la responsabilidad individual justifica un estado del bienestar más generoso que los que tenemos pero que no consigue identificar adecuadamente instituciones que la satisfagan adecuadamente. Dworkin no resuelve bien las objeciones que cuestionan la capacidad de su propuesta para generar resultados que sean fieles a la intuición que la motiva. Su respuesta hace depender el éxito de la implementación de su teoría de circunstancias que pueden no darse en la realidad.   Abstract: This article examines Ronald Dworkin’s equality of res…

An efficient excitation scheme for resonance ionization of tin in a laser ion source

1992

An efficient three-colour, three-step resonant excitation/ionization scheme has been found for tin that leads from the 5p23P2 level of the ground-state multiplet via two excited atomic levels (λ1 = 317.51 nm and λ2 = 811.40 nm) to an autoionizing state 9s3P2(λ3 = 823.49 nm) at 59375.9 cm−1. This excitation path permits the saturation of all transitions with the limited power available from a copper vapour laser pumped dye laser system (Esat ≈ 1.5 mJcm2 for λ3). The high repetition rate of such a laser system is essential for a highly efficient laser ion source.

A Novel Energy Model for MANETs based on Graphs with Activation Windows

2005

Energy usage optimization is still an important issue and a critical design factor for mobile ad hoc networks (MANETs). Only recently a few proposals appeared that consider energy-aware optimizations for routing protocols. In this paper we describe an analytical model for MANETs which is based on graphs with activation windows. The activation windows allow to model the on-off status of the network devices. Moreover, we propose an algorithm with pseudo-polynomial complexity, called STP algorithm (STPA), that based on the current position and state of the nodes determines the shortest time path between the source node and the destination node.

Lifespan-Aware Routing for Wireless Sensor Networks

2010

Wireless Sensor Networks (WSNs) have the capability to become the eyes and ears for the future networked society allowing monitoring of any habitat or object's properties remotely and independently of an energy source. Services based on this technology may change the way we monitor and control remote areas and objects. In this paper we propose a different approach to routing data across Wireless Sensor Networks. We argue that a distance-vector protocol using a lifespan-aware metric is a plausible solution to the task of routing information in WSN in a manner that both saves energy of the individual node and manages summarized energy of the system equally and fairly. The concept is designed …

Stability Analysis of Routing Strategies for the Maximum Lifetime Problem in One-Dimensional Ad-Hoc Wireless Networks

2017

In the paper we discuss solutions of the maximum network lifetime problem in one-dimensional, regular ad-hoc wireless networks. For the problem, nodes of the network generate given amount of data and send it possibly via other nodes to the data collector. To extend the network lifetime the data should be transmitted in such a way, that the energy utilized by the most overloaded node is minimized. We assume, that the nodes use the point-to-point data transmission scheme and the cost of transmission of one unit of data is arbitrary superadditive function of a distance between transmitter and receiver. We show that for the one-dimensional network in which the nodes are evenly distributed on th…

A Branch-and-Cut method for the Capacitated Location-Routing Problem

2011

International audience; Recent researches in the design of logistic networks have shown that the overall distribution cost may be excessive if routing decisions are ignored when locating depots. The Location-Routing Problem (LRP) overcomes this drawback by simultaneously tackling location and routing decisions. The aim of this paper is to propose an exact approach based on a Branch-and-Cut algorithm for solving the LRP with capacity constraints on depots and vehicles. The proposed method is based on a zero-one linear model strengthened by new families of valid inequalities. The computational evaluation on three sets of instances (34 instances in total), with 5–10 potential depots and 20–88 …