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Helicobacter pylori y estrés psicosocial en pacientes con gastritis crónica
Monta?o,José I; Dossman,Ximena; Herrera,Julián A; Bromet,Arnoldo; Moreno,Carlos H;
Colombia Médica , 2006,
Abstract: objective: the aim of the study was to describe the prevalence of helicobacter pylori and psychosocial stress in patients with chronic gastritis. methods: a pilot case-control study was performed in patients with chronic gastritis. the study group included patients infected with h. pylori and the control group included patients without infection. the patients were recruited at the valle university hospital (vuh) and the valle del lili foundation (vlf) in cali, colombia during 2003. the h. pylori infection was determined by gastric endoscopy and the psychosocial stress by the hospital anxiety depression scale (hads). results: 164 patients were included, 74 (45.1%) in vuh and 90 (54.9%) in vlf. the socio-demographic characteristics were comparable in both institutions and both groups. h. pylori infection was observed in 113 (68.9%) patients and psychosocial stress in 115 (70.1%). anxiety levels were higher than depression levels; (anxiety median=9, range 1-20; depression median=6, range 0-17) especially in vuh (p=0.03) associated to low socioeconomic status (p<0.01). the psychosocial stress was not associated with h. pylori infection (p=0.69). conclusion: patients with chronic gastritis had a high prevalence of h. pylori infection and psychosocial stress without association between the two variables.
Helicobacter pylori y estrés psicosocial en pacientes con gastritis crónica
José I. Monta?o,Ximena Dossman,Julián A. Herrera,Arnoldo Bromet
Colombia Médica , 2006,
Abstract: Objetivo: Determinar la prevalencia de Helicobacter pylori y el estrés psicosocial en pacientes con síntomas digestivos recidivantes y diagnóstico previo de gastritis crónica. Métodos: Se realizó un estudio piloto de casos y controles donde el grupo de estudio fueron pacientes con gastritis crónica e infección por H. pylori y el grupo control, enfermos con gastritis crónica sin infección. Los pacientes se evaluaron en el Hospital Universitario del Valle (HUV) y en la Fundación Clínica Valle del Lili (FVL) en Cali, Colombia durante el 2003. La infección por H. pylori se determinó por endoscopia digestiva y el estrés psicosocial mediante la Escala de Ansiedad y Depresión en el Hospital (HADS). Resultados: Se estudiaron 164 pacientes, 74 (45.1%) en el HUV y 90 (54.9%) en la FVL. Las características sociodemográficas del grupo en estudio y del control fueron comparables. Se observó infección por H. pylori en 113 (68.9%) pacientes y estrés psicosocial en 115 (70.1%). Los niveles de ansiedad fueron mayores que los de depresión (ansiedad mediana=9, rango 1-20; depresión mediana=6, rango 0-17) especialmente en el HUV (p=0.03). El estrés psicosocial no se asociaba con la infección por H. pylori (p=0.69). Conclusión: Los pacientes con diagnóstico endoscópico previo de gastritis crónica y síntomas digestivos recidivantes presentan una alta prevalencia de infección por H. pylori y estrés psicosocial sin estar asociados estos dos factores.
Suplementación oral de calcio en adolescentes embarazadas
Herrera,Julián A; Arévalo-Herrera,Myriam; Villegas,Adriana; Herrera,Sócrates; Villalba,Maribel; Bromet,Arnoldo;
Colombia Médica , 2006,
Abstract: objective: to determine the effect of oral administration of calcium on plasma and ionized free calcium concentration in healthy adolescent pregnant women. methods: in a double blind randomized controlled clinical trial were recruited 48 healthy adolescent pregnant women, 24 (50%) received 600 mg of elemental calcium and 24 (50%) received 600 mg of lactose placebo. at the inclusion time the plasma and intracellular free calcium concentrations were measured by standardized techniques. one month later the plasma and intracellular free calcium concentrations in both groups were measured. results: at the inclusion time and one month after treatment both groups were comparable for sociodemographic characteristics and the basal intake of calcium (p=0.92, p=0.62). calcium supplementation did not modify the concentrations of plasma ionized calcium (1.19+0.04 mmol/l vs. 1.23+0.02 mmol/l, p=0.56) and the free intracellular calcium concentration (mmol/l vs. 89.7 mmol/l, p=0.91); similar effects were observed with the placebo treatment (1.20+0.05 mmol/l vs. 1.19+0.03 mmol/l p=0.86; 116.2 mmol/l vs 137.5 mmol/l, p=0.16, respectively). conclusions: oral administration of 600 mg of elemental calcium in adolescent pregnant women did not induce changes in the plasma and intracellular ionized free calcium concentrations and could explain in part the lack effect of this only supplementation in preeclampsia prevention.
Agronomía Tropical , 2003,
Abstract: the yellow-endosperm maize cultivar fonaiap 1 is a single-cross hybrid, formed by crossing inbred lines: 80-suwan 1 fhc 65-4-2-#-# and 92-pob 36 cv hc 144-2-2-b-#*4-1-#. lt is the first commercial yellow-endosperm single-cross hybrid released by the public sector in venezuela, where production of this type of maize is deficient and imports are needed annually. during the years 1999-2001 the hybrid fonaiap 1 was evaluated in 33 environments in regional trials conducted by fonaiap, showing a yield superiority of 13% with respect to reference checks used in these trials. eligibility to certification for this hybrid is being requested from the national seed service (senasem).
Malária Aviária en un País de la Región Neotropical - Venezuela
Gabaldon Arnoldo
Memórias do Instituto Oswaldo Cruz , 1998,
Efectos de la crisis económica internacional y del fenómeno del ni o sobre la balanza de pagos del Perú, 1997- 1999 Efectos de la crisis económica internacional y del fenómeno del ni o sobre la balanza de pagos del Perú, 1997- 1999
Arnoldo Rozenberg
Revista Economía , 2000,
Abstract: This paper evaluates the effects of the externa1 crisis (from 1997 to 1999) on the main accounts of the Peruvian’s balance of payments. Estimating mainly its effects on the trade, services, and income accounts of the current balance and financia1 accounts. Also, this paper tries to estimate approximately the probable effects of ‘el Ni o’ (1997-1998) on the external sector, to find out more approximate values from the direct effects of these serious external shocks on the commercial and financia1 flows; separating them into autonomous and balancing transactions of the balance of payments. Also, it analyzes the limited use of macroeconomics policy by the Peruvian government to counteract the crisis; or rather the implementation of few partial and late measures to overcome the effects of the domestic contraction and recession, generated by both shocks of externa1 origin. Este documento evalúa los efectos de la crisis externa (de 1997 a 1999) en las principales cuentas de la balanza de pagos del Perú. En especial, se estima sus efectos en las cuentas de comercio, servicios y renta de la balanza corriente y en las cuentas financieras. Además, aquí se trata de estimar aproximadamente los efectos probables del Fenómeno del Ni o (1997- 1998) en el sector externo, para hallar valores más aproximados de los efectos directos de estos graves shocks externos en los flujos comerciales y financieros; separando a éstos en transacciones autónomas y de ajuste de la balanza de pagos. También, se analiza la casi nula utilización de la política macroeconómica del gobierno peruano para contrarrestar la crisis; mejor dicho, la ejecución de pocas medidas parciales y tardías para superar los efectos de la contracción y recesión económica interna, generada por ambos choques exógenos.
John SHEAHAN, 2001: La Economía Peruana desde 1950. Buscando una Sociedad Mejor. Lima: IES Instituto de Estudios Peruanos, 269 pp.
Arnoldo Rozenberg
Revista Economía , 2000,
Abstract: La rese a no presenta resumen.
Petróleo nuestro y ajeno: La ilusión de modernidad
Arnoldo Pirela
Cuadernos del Cendes , 2005,
World Trade Center Disaster Exposure-Related Probable Posttraumatic Stress Disorder among Responders and Civilians: A Meta-Analysis
Bian Liu, Lukman H. Tarigan, Evelyn J. Bromet, Hyun Kim
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0101491
Abstract: The World Trade Center (WTC) disaster on September 11, 2001 was an unprecedented traumatic event with long-lasting health consequences among the affected populations in the New York metropolitan area. This meta-analysis aimed to estimate the risk of probable posttraumatic stress disorder (PTSD) associated with specific types of WTC exposures. Meta-analytical findings from 10 studies of 3,271 to 20,294 participants yielded 37 relevant associations. The pooled summary odds ratio (OR) was 2.05 (95% confidence interval (CI): 1.82, 2.32), with substantial heterogeneity linked to exposure classification, cohort type, data source, PTSD assessment instrument/criteria, and lapse time since 9/11. In general, responders (e.g. police, firefighters, rescue/recovery workers and volunteers) had a lower probable PTSD risk (OR = 1.61; 95% CI: 1.39, 1.87) compared to civilians (e.g. residents, office workers, and passersby; OR = 2.71, 95% CI: 2.35, 3.12). The differences in ORs between responders and civilians were larger for physical compared to psychosocial exposure types. We also found that injury, lost someone, and witnessed horror were the three (out of six) most pernicious exposures. These findings suggest that these three exposures should be a particular focus in psychological evaluation and treatment programs in WTC intervention and future emergency preparedness efforts.
People, Governance and Forests—The Stumbling Blocks in Forest Governance Reform in Latin America
Arnoldo Contreras-Hermosilla
Forests , 2011, DOI: 10.3390/f2010168
Abstract: This article examines common barriers to achieving adequate levels of forest resource governance in countries of Latin America. It looks at the deficiencies of the policy and regulatory frameworks affecting forests, the common failure to impose the rule of law, the main factors that constrain the effectiveness of government actions in the forest sector and at the political barriers to introducing reforms for change in governance structures. The elimination of these barriers acquires new importance in the implementation of successful REDD+ programs in the countries of the region.
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