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Search Results: 1 - 10 of 3754 matches for " Monica Silvestre "
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Large Epidemiological Influenza A Outbreak in a Teaching Hospital from Guatemala City
Carlos Mejía,Monica Silvestre,Iris Cazali,Judith García
ISRN AIDS , 2012, DOI: 10.5402/2012/638042
Abstract:
Correspondence Analysis on a Space-Time Data Set for Multiple Environmental Variables  [PDF]
Palma Monica
International Journal of Geosciences (IJG) , 2015, DOI: 10.4236/ijg.2015.610090
Abstract: Applications of the multivariate technique called correspondence analysis for environmental studies are relatively new and are limited to spatial multivariate data set. In this paper, a procedure of applying correspondence analysis to a large space-time data set for multiple environmental variables is shown. In particular, nitrogen dioxide and carbon monoxide hourly concentrations measured during January 1999 at several monitored stations in a district of Northern Italy are analyzed. The procedure consists in transforming the continuous variables into categorical ones by the means of appropriate indicator variables, generating special contingency tables and applying correspondence analysis. The use of this classical multivariate technique allows the identification of important relationships among pollution levels and monitoring stations and/or relationships among pollution levels and observation times.
Large Epidemiological Influenza A Outbreak in a Teaching Hospital from Guatemala City
Carlos Mejía,Monica Silvestre,Iris Cazali,Judith García,Ruth Sánchez,Leticia García,Leticia Castillo,Ingrid Escobar,Sandra Terraza
ISRN AIDS , 2012, DOI: 10.5402/2012/638042
Abstract: Objective. To describe the characteristics and interventions to control a large epidemiological Influenza A Outbreak. Methods. During the months of February to April 2006, a large outbreak of Influenza A was detected, which affected Health Care Workers and hospitalized patients in a large teaching Hospital in Guatemala City. Interventions to interrupt transmission were implemented and included barrier methods (N95 masks, respiratory isolation measures, etc.) and enhanced hand hygiene, vaccination of healthy Health Care Workers (HCW), restrictions for patient visits. Results. From February to April 2006, 59 hospitalized patients diagnosed with Influenza A. 19 AIDS patients (mortality: 71%) and 5/40 (12.5%) in other diseases: cancer (3), severe cardiac failure (1) and severe malnutrition (1). The attack rate at day 20 in doctors and medical students was 21% while in other HCW it was 10.5%. Within 3 weeks of the beginning of the plan, deaths were stopped and no more cases in HCW were detected after 3 additional weeks. Conclusion. A rapid, comprehensive plan for the control of nosocomial epidemic Influenza A outbreaks is essential to limit severe morbidity and mortality in hospitals who attend large immunocompromised populations, including AIDS patients. HCW regular vaccinations programs are mandatory. 1. Introduction Influenza A and B cause highly contagious, acute respiratory illness, associated with high morbidity and mortality among persons with underlying diseases. Influenza can cause extensive nosocomial outbreaks with high mortality rates. The causes of death in the more severe forms of influenza are (a) severe pneumonia with respiratory distress, (b) neurological complications, and (c) secondary bacterial pneumonia. Outbreaks in children units, senior facilities, cancer centers, neonatal units, pulmonary rehabilitation centers, emergency departments, and others have been described. Large nosocomial outbreaks in large tertiary referral hospitals that provide care to large numbers of patients with advanced AIDS have not been frequently described. Roosevelt Hospital is a large teaching, university tertiary referral hospital in Guatemala City, with 850 beds capacity. More than 3,500 AIDS patients were in followups, and 1561 treated with antiretroviral drugs at the time when the outbreak was detected in March 2006; all of whom were at potential risk to develop severe forms of Influenza. 35% of the patients have less than 50 CD4 cells/mm3 and 68% less than 200 CD4 cells/mm3, at the time the HIV infection diagnosis is made at Roosevelt Hospital. The main
All but one free ride when wealth effects are small
Joaquim Silvestre
SERIEs , 2012, DOI: 10.1007/s13209-011-0057-4
Abstract: Quasilinear preferences on a public good and a numeraire good are limits of preferences where both goods are normal. The set of equilibria of the voluntary contribution (or private provision) game is easily characterized under quasilinearity by: top valuators aggregately contribute their common stand-alone contribution, whereas non-top valuators contribute nothing. Because, as long as preferences are randomly selected, there will typically be a single top valuator, it follows that, typically, the equilibrium is unique, with all players but one contributing nothing, hence “free riding” in the sense of the ordinary English usage of the expression. The upper-hemicontinuity of the Nash equilibrium correspondence implies that this is also the case when both goods are strictly normal, but the wealth effects on the public good are small.
EXPEDIENTE
Rodrigo Silvestre
Revista de Ciências Farmacêuticas Básica e Aplicada , 2010,
Abstract:
Expediente
Rodrigo Silvestre
Revista de Ciências Farmacêuticas Básica e Aplicada , 2010,
Abstract:
Sumário
Rodrigo Silvestre
Revista de Ciências Farmacêuticas Básica e Aplicada , 2010,
Abstract:
EXPEDIENTE
Rodrigo Silvestre
Revista de Ciências Farmacêuticas Básica e Aplicada , 2010,
Abstract:
EXPEDIENTE
Rodrigo Silvestre
Revista de Ciências Farmacêuticas Básica e Aplicada , 2010,
Abstract:
EXPEDIENTE
Rodrigo Silvestre
Alimentos e Nutri??o , 2011,
Abstract:
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