Search results for "GAIN"
showing 10 items of 625 documents
Coherence Checking and Propagation of Lower Probability Bounds
2003
In this paper we use imprecise probabilities, based on a concept of generalized coherence (g-coherence), for the management of uncertain knowledge and vague information. We face the problem of reducing the computational difficulties in g-coherence checking and propagation of lower conditional probability bounds. We examine a procedure, based on linear systems with a reduced number of unknowns, for the checking of g-coherence. We propose an iterative algorithm to determine the reduced linear systems. Based on the same ideas, we give an algorithm for the propagation of lower probability bounds. We also give some theoretical results that allow, by suitably modifying our algorithms, the g-coher…
Gains from Trade and Efficiency under Monopolistic Competition: A Variable Elasticity Case
2006
We present a general equilibrium model of monopolistic competition with variable demand elasticities and investigate the impact of free trade on welfare and efficiency. First, contrary to the constant elasticity case, in which all gains from trade are due to increasing product diversity, our model features gains from pro-competitive effects. Second, we prove that the market outcome is not efficient because too many firms operate at an inefficiently small scale. Last, we illustrate that free trade raises efficiency by reducing the gap between the equilibrium utility and the optimal utility.
Evaluation of the Effects of the Enriched-Organic Diets Composition on European Sea Bass Welfare through a Multi-Parametric Approach
2020
Three groups of European sea bass (Dicentrarchus labrax) were fed for seven months, with either a conventional diet or two different organic diets, which contain organic vegetables and a natural antioxidant compound. The two organic diets differed themselves in terms of raw proteins, fish oil, and lipid contents. Sea bass welfare condition was assessed in relation to these three diets, using 16 different indicators. These were: swimming activity (recovery test, muscle activity), haematological and serological stress indicators (haematocrit, haemoglobin, red-blood-cell count, cortisol, glucose, lactate), aspecific immunity parameter (lysozyme), indicators of exposure to organic contaminants …
Mutations in DMI3 and SUNN modify the appressorium-responsive root proteome in arbuscular mycorrhiza.
2006
Modification of the Medicago truncatula root proteome during the early stage of arbuscular mycorrhizal symbiosis was investigated by comparing, using two-dimensional electrophoresis, the protein patterns obtained from non-inoculated roots and roots synchronized for Glomus intraradices appressorium formation. This approach was conducted in wild-type (J5), mycorrhiza-defective (TRV25, dmi3), and autoregulation-defective (TR122, sunn) M. truncatula genotypes. The groups of proteins that responded to appressorium formation were further compared between wild-type and mutant genotypes; few overlaps and major differences were recorded, demonstrating that mutations in DMI3 and SUNN modified the ap…
El perfil del maltractador masclista. Què ens diu la seua biologia?
2014
La consideracio dels marcadors psicobiologics de predisposicio a la violencia dels homes que maltracten les dones obre una porta a la prevencio i la intervencio en el camp de la violencia contra les dones. Actualment no disposem de farmacs efectius per al tractament de la violencia contra les dones, pero el desenvolupament de programes d’intervencio psicoterapeutica i de rehabilitacio neuropsicologica marca una via d’esperanca.
Industry specialization and audit fees: a meta-analytic approach
2015
Purpose The purpose of this paper is to provide a comprehensive review of the literature that links auditor’s industry specialization (AIS) and audit fees (AFs) in order to clarify the puzzle of published results and provide overall conclusions that would help in future research. Design/methodology/approach To achieve this goal, the authors applied meta-analysis techniques in order to summarize, quantify and evaluate the published data related to the association between AIS and AF. Findings The meta-results are more robust when the proxy for AIS is the audit firm’s market share above 20 percent or the audit firm is jointly the national and city leader. For US-based studies, results are hom…
La Asociación Europea contra la Poliomielitis y los programas europeos de vacunación
2012
La búsqueda de una respuesta europea al problema planteado por los brotes epidémicos de poliomielitis en las décadas centrales del siglo XX, desembocó en la creación de un organismo nuevo, la Asociación Europea contra la Poliomielitis en 1951. Los mecanismos de funcionamiento interno y las conexiones internacionales de dicha Asociación fueron subsidiarios de un determinado contexto socio-político que propiciaba este tipo de consorcios. Como muestra este trabajo, su labor en los dieciocho años de existencia fue decisiva para la articulación y el éxito alcanzado por las políticas sanitarias nacionales de inmunización masiva frente a la enfermedad.
Le prince, l'argent, les hommes. Mélanges offerts à Jean Kerhervé
2008
International audience
Flashlamp-pumped Nd:KGW laser in MOPA configuration: comparative study of several rods
1999
The laser performance of the Nd:KGW crystal has been studied in a master oscillator and power amplifier configuration (MOPA). Several crystals from two different producers were investigated for the oscillator and the amplifier. A maximum single-pass gain of 25 was observed in free-running and Q-switched mode. We obtained a maximum output amplified energy of 400 mJ at 30 Hz (with a pulse duration of 10 to 30 ns) with a divergence less than 3 mrad. We also studied the limitations of this configuration due to the very high gain of the Nd:KGW crystal.
1.3 µm GaInNAs optically-pumped vertical cavity semiconductor optical amplifier
2003
A GaInNAs/GaAs vertical cavity semiconductor optical amplifier (VCSOA) is reported. This is believed to be the first monolithic VCSOA operating at 1.3 mum. Under continuous-wave optical pumping in a singlemode fibre coupled format, gain figures of up to 17.7 dB were achieved. Amplification with 12 GHz bandwidth,was obtained at 12.8 dB peak gain.