Search results for "G1"
showing 10 items of 717 documents
The Deuteron Spin-dependent Structure Function g1(d) and its First Moment
2007
We present a measurement of the deuteron spin-dependent structure function g1d based on the data collected by the COMPASS experiment at CERN during the years 2002-2004. The data provide an accurate evaluation for Gamma_1^d, the first moment of g1d(x), and for the matrix element of the singlet axial current, a0. The results of QCD fits in the next to leading order (NLO) on all g1 deep inelastic scattering data are also presented. They provide two solutions with the gluon spin distribution function Delta G positive or negative, which describe the data equally well. In both cases, at Q^2 = 3 (GeV/c)^2 the first moment of Delta G is found to be of the order of 0.2 - 0.3 in absolute value.
Types of climates on continental France, a spatial construction
2010
Le climat est un élément important de la vie des territoires car il conditionne le comportement et les décisions des individus et des groupes sociaux comme celui de l’ensemble des espèces vivantes et des écosystèmes. A ce titre, la différenciation de l’espace selon les climats et les aptitudes qui en résultent est un domaine qui mérite d’être réinvesti par la recherche en mettant à profit des moyens de traitement modernes de l’information. Avec cet objectif en vue, les auteurs proposent une approche spatiale de définition des climats. Partant des mesures stationnelles de précipitation et de température mises à disposition par Météo-France, un jeu de 14 variables intégrant une série temporel…
Un nuevo anovulador antiandrogénico
1982
El acetato de Ciproterona solo o asociado con estrógenos es el producto idóneo para el tratamiento de manifestaciones androgénicas . El esquema terapéutico debe adaptarse al predominio, tiempo de evolución y severidad de unos u otros síntomas. Cuando se trata de hirsutismo moderado o grave la pauta será la administración del método continuo a dosis altas durante 6 meses, seguido de método combinado de altas o bajas dosis, según el tipo de respuesta inicial. Cuando predominan el acné y la seborrea se usará el método combinado de bajas dosis, pues si bien son mejores los resultados que se obtienen con el método continuo a dosis altas, los efectos secundarios no justifican su us…
Importancia del ginecólogo en el diagnóstico precoz del cáncer de mama y su participación en los "Screening" de grandes masas de población
1981
Se analizaron el peso y la talla de 217 embarazadas de alto riesgo que consultaron al Departamento de Obstetricia y Ginecología durante el primer semestre del presente año. El peso promedio de las madres fue de 62 kilos 500 gramos y el de los recién nacidos de 3.100 gramos. La D.S. del peso materno fue de 10.30 kilos y la de los niños de 396.15 gramos.Al analizar el coeficiente de correlación (r= 0.3368) se encontró positivo en- tre el peso de la madre y el del recién nacido p. 0.001, por lo tanto, es de esperar, que entre más pese la madre mayor será el peso del niño. En el análisis de la talla materna se encontró que el promedio fue de 152 centímetros y el de los recién naci…
Natural co-occurrence of ochratoxin A, ochratoxin B and aflatoxins in Sicilian red wines
2015
The natural occurrence of ochratoxin A, ochratoxin B, aflatoxin B1, aflatoxin B2, aflatoxin G1 and aflatoxin G2 (OTA, OTB, AFB1, AFB2, AFG1, AFG2) in red wines was investigated by HPLC/FLD after immunoaffinity column clean-up in 57 market samples produced in Sicily (Italy). The results showed a very low incidence of these mycotoxins in analysed samples, confirming the high degree of quality and safety of Sicilian red wines. The results indicated 71.9% and 64.9% positive samples for OTA and OTB respectively, with an average level of 0.13 μg l(-1), well below the European maximum permitted levels (MLs). The aflatoxin most frequently detected in the samples was AFG1, present in 57.9% of sample…
Identification of Candidate Polymorphisms on Stress Oxidative and DNA Damage Repair Genes Related with Clinical Outcome in Breast Cancer Patients
2012
Diverse polymorphisms have been associated with the predisposition to develop cancer. On fewer occasions, they have been related to the evolution of the disease and to different responses to treatment. Previous studies of our group have associated polymorphisms on genes related to oxidative stress (rs3736729 on GCLC and rs207454 on XDH) and DNA damage repair (rs1052133 on OGG1) with a predisposition to develop breast cancer. In the present work, we have evaluated the hypothesis that these polymorphisms also play a role in a patient’s survival. A population-based cohort study of 470 women diagnosed with primary breast cancer and a median follow up of 52.44 months was conducted to e…
Hedging foreign exchange rate risk: Multi-currency diversification
2016
Abstract This article proposes a multi-currency cross-hedging strategy that minimizes the exchange risk. The use of derivatives in small and medium-sized enterprises (SMEs) is not common but, despite its complexity, can be interesting for those with international activities. In particular, the reduction in the exchange risk borne through the use of natural multi-currency cross-hedging is measured, considering Conditional Value-at-Risk (CVaR) and Value-at-Risk (VaR) for measuring market risk instead of the variance. CVaR is minimized using linear programmes, while a multiobjective genetic algorithm is designed for minimizing VaR, considering two scenarios for each currency. The results obtai…
Determinants of interest margins in Spanish credit institutions before and after the 2008 financial crash
2017
As interest margins of credit institutions affect economic performance of countries, finding out which are the main determinants of their evolution is a research task of great interest at current times. This is the purpose of the present paper as regards to the Spanish case over the period 2004-2012. Based on the econometric contributions by Ho and Saunders (1981) and some of its extensions, the authors develop a model that includes as explanatory variables the factors usually examined in the literature and other singular variables that might be relevant. Particularly, the rate of leverage, the quality of their assets measured according to their risk, and the profit obtained from the sellin…
Effects of the intensity of use of social media on brand equity: An empirical study in a tourist destination
2018
PurposeThe purpose of this paper is to provide a comprehensive research of the effects of the intensity of use of social media on destination brand equity. The authors use the schema theory and a multidimensional approach of brand equity to analyse how social media communication affects brand awareness, brand image, customer value, brand quality and loyalty.Design/methodology/approachThe authors carried out a quantitative study through a personal survey with structured questionnaire. The study population were international tourists, over 18 years of age, who were visiting the city of Valencia, Spain. Respondents were asked to take the questionnaire upon arrival in Valencia, that is, before …
Corporate social irresponsibility: review and conceptual boundaries
2017
PurposeThe purpose of this paper is to carry out a review of the academic literature about corporate social irresponsibility (CSIR) highlighting aspects that help us to define socially irresponsible behaviour and its relationship with socially responsible behaviour.Design/methodology/approachThrough a Boolean search of studies related to terms of irresponsibility undertaken from 1956 to October 2016, the authors develop a review of the literature focussing on the main perspectives used for defining the term of CSIR.FindingsThe paper provides a framework of three main dimensions for understanding the differences in the literature that defines CSIR: who defines irresponsible behaviour, an imp…