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.

Evaluación sensorial de tortas de camote (Ipomoea batatas), elaboradas con o sin hojas de camote, con niños en edad escolar en Nicaragua

Abstract: Objective: complete a sensory evaluation of orange-fleshed sweet potato (OFSP) clone 440189. Materials and methods: a descriptive study was undertaken with a convenience sample of 290 Nicaraguan school-age children attending grades 3 to 6, who taste-tested a "sweet potato cake" recipe. Snack A had sweet potato leaves added to it; snack B did not. First, 33 mothers opined about the snacks. Then, children tested snacks A and B, assigning a value of 1 to 5 (from "I don't like it very much" to "I like it very much") to each and indicating which snack they preferred. Results: most of the women gave a positive evaluation to the snacks in terms of ease of preparation, time required, access to ingredients, probability that the children would accept them, and possibility of including them in the school menu. Acceptability scores assigned by the children were high (mean ± SD of 4,5 + 0,7) and similar between the snacks (p=0,91). Fifty one percent preferred snack A and 49% preferred snack B (p=0,56). Conclusions: both snacks were accepted by the mothers and children suggesting that it is feasible to include OFSP clone 440189 into Nicaraguan school children's meals.

Biological Control of Citrus Blackfly (Homoptera: Aleyrodidae) in Nicaragua

Abstract: A series of life tables based on field observations of mortality of citrus blackfly, Aleurocanthus woglumi Ashby, in a commercial orchard in Leon, Nicaragua (1986–1989), indicate that the solitary endoparasitoid Encarsia opulenta (Silvestri) is an important factor in the observed declines of outbreak citrus blackfly populations in 1986 and 1987. Parasitization by E. opulenta was disrupted by intensive rainfall and subsequent pesticide applications in the orchard but was restored when insecticide use was eliminated or dry weather conditions resumed. By mid-1988, survival of immatures to the adult stage was below theoretical replacement levels necessary for population increase, and populations declined to low, subeconomic densities. In late October 1988, heavy wind and rain of Hurricane Joan disrupted parasitoid activity and created conditions for potential outbreak adult citrus blackfly survivorship. E. opulenta reexerted control of the population to low-density subreplacement levels within the following four host generations.

The application of electrical methods in exploration for ground water resources in the River Malacatoya sub-basin, Nicaragua

Abstract: Nicaragua is being substantially affected by climate change, whose impact is to be seen in marked seasonal variations of climatic and hydrometric parameters. Rainfall has declined sharply over the last decade within a strip of land that runs parallel to the Pacific Ocean and extends from the extreme northwest of Lake Nicaragua (also known as Cocibolca) to the Departments of Madriz and Nueva Segovia and beyond the border with Honduras. Droughts and water shortages have changed the way of life of local inhabitants along the strip, which includes the Malacatoya sub-basin. Shallow aquifers and surface water levels have been notably reduced. This has increased the need to seek new water sources in the sub-basin from a flow-systems viewpoint, applying hy dro-geological, geophysical and hydro-geochemical techniques to create a conceptual model of how the systems operate. This article describes the application of 10 Continuous Vertical Electrical Soundings (CVES) and nine Vertical Electrical Soundings (VES), accompanied by a geological evaluation. Taken together, these techniques permit the identification and characterization – in terms of space and depth – of the aquifer formations present in three sub-areas of the sub-basin. Geophysical results indicate that the thickest aquifers were to be encountered in the Rio Malacatoya and Las Banderas quaternary units (unconfined aquifers). In these units, the flow is through porous media. In Teustepe, in the Rio Grande de Matagalpa, Cerro Oluma, La Libertad and Santa Lucia tertiary units, the flow is through fractured media (semi-confined aquifers).

Estado del arte de la medición de la productividad y la eficiencia técnica en América Latina: Caso Nicaragua

Abstract: In this article were presented the results of a literature review from textbooks and scientific papers that address theory of "productivity" and "technical efficiency" as two key economic indicators to determine the economic growth reflected a productive unit, an economic sector or a nation. The study found that countries with a higher contribution of technical progress to the change in productivity in the period of 50 years (1960-2010) were analyzed recorded the Argentina, Brazil, Colombia and Ecuador, with indexes of around 0.3%. Furthermore, it is evident that the 19 countries analyzed in this study showed a decreasing technical efficiency, which means that the contribution of TFP that efficiency was negative in all countries. In the case of Nicaragua it was noted that some authors TFP estimated between 0.016 and 0.018 of growth. Rev. iberoam. bioecon. cambio clim. Vol. 1 num 2, 2015, pag. 76-100

MUSE Reveals Extended Circumnuclear Outflows in the Seyfert 1 NGC 7469

Abstract: NGC 7469 is a well known Luminous IR Galaxy, with a circumnuclear star formation ring ($\sim 830$ pc radius) surrounding a Seyfert 1 AGN. Nuclear unresolved winds were previously detected in X-rays and UV, as well as an extended biconical outflow in IR coronal lines. We search for extended outflows by measuring the kinematics of the $\mathrm{H\beta}$ and [O III] $\lambda 5007$ optical emission lines, in data of the VLT/MUSE integral field spectrograph. We find evidence of two outflow kinematic regimes: one slower regime extending across most of the star formation ring -- possibly driven by the massive star formation -- and a faster regime (with a maximum velocity of $-715 \ \mathrm{km \ s^{-1}}$), only observed in [O III], in the western region between the AGN and the massive star forming regions of the ring, likely AGN-driven. This work shows a case where combined AGN/star-formation feedback can be effectively spatially-resolved, opening up a promising path toward a deeper understanding of feedback processes in the central kiloparsec of AGN.