National Autonomous University of Nicaragua

About: National Autonomous University of Nicaragua is a education organization based out in Managua, Nicaragua. It is known for research contribution in the topics: Population & Public health. The organization has 775 authors who have published 715 publications receiving 9791 citations.

Antimicrobial effect of Moringa oleifera seed powder against Vibrio cholerae isolated from the rearing water of shrimp (Penaeus vannamei) postlarvae.

Abstract: Shrimp farming has experienced rising costs as a result of disease outbreaks associated with Vibrio spp. Suitable strategies for disease prevention and control are therefore urgently needed. This study aimed to evaluate the antimicrobial effect of Moringa oleifera seed powder against Vibrio cholerae in the rearing water of Pacific white shrimp (Penaeus vannamei) postlarvae. In vitro assays included the determination of minimum inhibitory concentration (MIC) of M. oleifera seed powder against V. cholerae, whereas in vivo assays included the effect of M. oleifera seed powder on bacterial load and water quality parameters in the rearing tanks, as well as its effect on shrimp postlarvae survival. M. oleifera seed powder inhibited the growth of V. cholerae with MIC values of 62·5 µg ml-1 . Moreover, seawater pH of treated tanks (8·66) was significantly lower (P < 0·01) than pH of the control tanks (9·02), whereas the visibility of treated tanks (37·08 cm) was significantly higher (P < 0·01) as compared to control tanks (35·37 cm). Likewise, V. cholerae load was significantly reduced (P < 0·01) from 4·7 × 104 to 3·1 × 103 CFU per ml in tanks treated with M. oleifera seed powder. Altogether, this study demonstrates the antimicrobial activity of M. oleifera against V. cholerae in shrimp culture.

Factores determinantes que influyen para el emprendimiento de microempresas en el municipio de León, Nicaragua.

Abstract: En este articulo se analiza la influencia de los factores socioeconomicos y psicosociales del emprendimiento femenino. Para ello, se ha empleado una muestra de 101 constituida por mujeres emprendedoras en el municipio de Leon, Nicaragua. Los resultados indican que todas las variables razonadas ejercen una significativa influencia sobre la probabilidad de emprender, los factores sociodemograficos aumenta cuando disponen de habilidades, conocimientos y cuentan con un contacto temprano en el mundo empresarial. A la luz de los resultados obtenidos estos confirman las relaciones establecidas en el modelo de investigacion.

Diferencias en la Vivencia de Sucesos Vitales Estresantes en Nicaragua, Chile y España

Abstract: El articulo describe los resultados de un trabajo realizado con 481 estudiantes de psicologia de cinco universidades de Nicaragua, Chile y Espana, tres paises que presenten diferentes niveles de desarrollo socioeconomico. Se analiza el riesgo de padecer determinados sucesos vitales estresantes y la cantidad y caracteristicas de los estresores padecidos, asi como su relacion con el nivel de desarrollo del pais en que habitan los participantes, su clase social y el nivel de desesperanza manifestado por estos. La informacion se recogio utilizando un cuestionario autoaplicado. Los resultados obtenidos indican una mayor incidencia en la vivencia de sucesos vitales estresantes entre los participantes que habitan en los paises con menores niveles de desarrollo, y entre quienes pertenecen a las clases sociales mas desfavorecidas. Los resultados apuntan igualmente a una relacion entre la cantidad de sucesos vitales padecidos y el nivel de desesperanza manifestado por los entrevistados. DOI: http://dx.doi.org/10.5377/universitas.v4i1.1673

Características física y producción per cápita de los residuos sólidos generados por los habitantes del complejo Ciudad Belén, distrito VI del Municipio de Managua, Nicaragua

Abstract: The Ciudad Belen housing project is located in district VI of the municipality of Managua, Nicaragua. The study area is composed of 4 stages and houses a total of 15,000 residents distributed in 2,266 houses. During the last two decades, several control systems for waste management have been established in Nicaragua, paying special attention to prevention strategies. However, despite this emphasis on prevention, the amount of waste generated has been increasing, as in the case of the Belen city complex. During the period October-December 2020, a diagnosis and evaluation of the management of non-hazardous household solid waste in Belen, in the municipality of Managua, was prepared. To evaluate the management of solid waste by the residents, an instrument (survey) was applied on their waste management. To estimate the generation of solid waste from households in Belen, the method of per capita production, density, volume, weight and physical composition was applied in 45 houses in the study area in order to quantify the waste produced by the residents.