Revista RIAA: Recent submissions
Voici les éléments 1021-1040 de 1154
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Antifugal activity of tara (Caesalpinia spinosa) phenolic compounds against Fusarium graminearum
(Sello Editorial UNAD, 2020-12-23)Contextualization: Fusarium graminearum is a field microorganism that affects grasses and causes great losses, particularly to rice crops. To counter these phytosanitary problems, excessive amounts of pesticides are applied, causing damage to health and the environment. An alternative is to plant extracts with a high content of bioactive compounds. Knowledge gap: The pyrogallol tannins contained in Caesalpinia ... -
Toxicity assessment of water and sediment samples in La Fe reservoir, Colombia
(Sello Editorial UNAD, 2020-12-23)Contextualization: To guarantee the quality of the water in the reservoirs destined to the treatment and supply of drinking water, toxicity analyzes of the water and sediments must be carried out periodically, due to its can be reservoirs of the organic pollutants that during remobilization processes could make those available in the aquatic ecosystems. Knowledge gap: Because these contaminants concentrations ... -
Methods of chemical scarification and their effects on the germination of seeds of (Ochroma pyramidale Cav. ex Lam. Urb)
(Sello Editorial UNAD, 2020-12-23)Introduction: Ochroma pyramidale is a species with high restorative potential and adapts easily in disturbed areas; however, seed germination is affected by being orthodox and experiencing dormancy. Knowledge gaps: Variation in germination capacity between different treatments and different environmental conditions. Objectives: To evaluate the germination percentage of O. pyramidale seeds by means of different chemical ... -
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The quality management system: an element for the competitiveness and sustainability of agricultural production in Colombia
(Sello Editorial UNAD, 2011-05-07)Under the conditions of the increasing globalization of markets, changing consumer habits, frequent outbreaks of foodborne illnesses (FBI), social organizations and governments seeking production and food supply include the assurance of safeness in all links in the chain. One way to achieve it, is to implement a Quality Management System (QMS) for certification in agricultural production units, the process addresses ... -
Sustainable production of broiler chicken and laying hen: bibliographical review and proposal of a model for small producers
(Sello Editorial UNAD, 2011-05-07)The peasant production of broiler chicken and laying hens in the world is wide, being the developing countries which most productions of this type arise. 'ese backyard holdings play an important role as they ensure the consumption of protein products and a subsistence economy to poor families. Due to the low number of technical and scientific studies on these extensive systems in the department of Boyacá, this work ... -
Eliminación de partículas similares a Cryptosporidium ooquistes por filtración directa ascendente utilizando un coagulante natural: estudio a escala piloto
(Sello Editorial UNAD, 2016-06-03)En la presente investigación fueron realizados experimentos de filtración de flujo ascendente en línea, a escala piloto, para evaluar el desempeño del coagulante natural quitosano en la extracción de microesferas de poliestireno con dimensiones similares a Cryptosporidium oocysts, en el tratamiento de aguas con turbidez natural aproximada de 30 uT, inducida con caolinita. Los parámetros evaluados fueron turbidez, ... -
Editorial Vol. 7 Núm. 2 (2016)
(Sello Editorial UNAD, 2016-06-03)Para el segundo semestre del 2016, el Departamento Administrativo de Ciencia, Tecnología e Innovación Colciencias, tiene prevista la convocatoria para la evaluación de revistas científicas. Actualmente se halla en discusión la política para mejorar la calidad de las publicaciones científicas nacionales. Según las orientaciones de la política, el nuevo modelo de Colciencias estará basado en el impacto de las publicaciones ... -
Efecto de dos enraizadores en tres especies forestales promisorias para la recuperación de suelos
(Sello Editorial UNAD, 2009-12-15)La erosión es uno de los principales problemas que afecta los suelos de ladera en el mundo. Algunas de las especies utilizadas en obras de bioingeniería se propagan por medio de estacas, sin embargo no todas enraízan fácilmente, por lo que es necesario utilizar sustancias inductoras de enraizamiento. En este trabajo, evaluamos dos sustancias promotoras de enraizamiento en estacas de mataratón (Gliricidia sepium), ... -
Analisyng the evolution of infectious diseases modelling
(Sello Editorial UNAD, 2018-12-18)The global interest to know and deal with infectious diseases in humans and animals has led to the development of different models (mathematical, stochastic, discrete), applied to predict the spread of new epidemics, reduce the spread of infectious diseases, evaluate the impact of different disease control strategies and improve the living conditions of individuals. Nowadays, new techniques and tools are being implemented ... -
Análisis comparativo de las propiedades mecánicas de la guadua angustifolia kunth como material estructural de eje para protesis transtibial
(Sello Editorial UNAD, 2018-07-05)La guadua es conocida como “el acero vegetal” por su alta resistencia, utilizada generalmente en construcciones de viviendas, puentes y edificaciones. En este proyecto se realizó un estudio de la variedad angustifolia kunth procedente de Moniquira Boyacá para determinar sus propiedades mecánicas y analizar su viabilidad como material de eje de prótesis transtibial, como respuesta a aquella población vulnerable ... -
International conservation strategies implemented in the National System of Protected Areas in Colombia
(Sello Editorial UNAD, 2018-12-18)Colombia has 1044 protected natural areas, which are the main tool for the conservation of biodiversity and its ecosystem services. Therefore, the implementation of complementary strategies for the conservation of biological diversity in natural areas is a mechanism to guarantee the functionality of Colombian ecosystems. In the present article, a review was made about the establishment of international strategies known ... -
Viabilidad de semillas de glycine max (l.) Utilizando la prueba de tetrazolio
(Sello Editorial UNAD, 2018-07-05)La soya (Glycine max L.) es una especie de la familia fabaceae, de gran importancia por su alto contenido de aceites y proteínas en su semilla. El éxito de la producción de este cultivo se ve mediado por factores como la utilización de simientes de alta calidad para su siembra. Por tal razón la finalidad de este estudio fue evaluar la viabilidad de las semillas de G. max utilizando la prueba de tetrazolio. Inicialmente, ... -
Reconocimiento territorial participativo de la serranía de los Yariguíes, microcuenca la Cinco Mil, (Santander - Colombia)
(Sello Editorial UNAD, 2018-07-05)La serranía de los Yariguíes, ubicada en el departamento de Santander, constituye un ecosistema estratégico del oriente de los Andes colombianos. Sin embargo, en la microcuenca la Cinco Mil, la cual se ubica en la serranía, la actividad agropecuaria ha impactado en las áreas naturales protegidas presentes: Parque Nacional Natural y Distrito de Manejo Integrado de los Yariguíes. La investigación realizó un proceso ... -
Editorial Vol. 9 Núm. 1 (2018)
(Sello Editorial UNAD, 2018-02-26)Uno de los aspectos más significativos que es considerado por la entidad reguladora colombiana Publindex COLCIENCIAS en términos de publicación científica, se encuentra los denominadas Bases Bibliográficas con Comité de Selección (BBCS), los cuales son definidos dentro del documento del Servicios de Indexación y Resumen –SIR “índices bibliográficos centran su objeto en la selección de artículos de investigación ... -
Determination of foliar nitrogen in palm of oil with spectroscopy in the middle infrared (MIR) and near (NIR) by the regression method of minimal partial squares of main components (PLS).
(Sello Editorial UNAD, 2020-07-07)Contextualization: The determination of foliar nitrogen is one of the indexes that measures the nutritional need of the plant in oil palm crops. It is also of equal importance in this research to focus on a general trend in laboratories called green chemistry, which focuses on minimizing the use of chemical reagents in different laboratory analyzes. Knowledge gap: Using medium and near infrared spectroscopy (MIR and ... -
Analysis of productive and socio-business variables of avocado hass producers in two municipalities of Cauca for the creation of key performance indicators (KPI) and the improvement of decision-making in the rural sector
(Sello Editorial UNAD, 2020-07-07)Contextualization: The article addresses the application of multivariate data analysis techniques in the agricultural sector, in order to characterize two groups of hass avocado farmers, based on data collected by entities that traditionally provide rural technical assistance in the country, the municipal technical assistance units (UMATAS), as well as facilitate data collection in the field and shedding light on the ... -
Vulnerability of surface water sources of the cerrito river basin to the agricultural diffuse pollution
(Sello Editorial UNAD, 2020-07-07)Contextualization: The traditional agricultural practices includes application of agrochemical products to fertilize and control pests, weeds, and diseases. After the application, those products are transported through diffusion phenomena to water bodies. At the same time, surface water bodies are used as a source of water in human consumption, agriculture, industrial and recreational activities, among others, and are ... -
Diversity and composition of vascular plants in wetlands of the paramo Rabanal, Boyacá- Colombia
(Sello Editorial UNAD, 2020-07-07)Contextualization: The Paramo of Rabanal has wetlands that provide the water resource, indispensable for the development of the economy and food security of the region. This ecosystem is being altered by the pressure exerted by the various productive and economic human activities, which means that the wetland loses the capacity to retain and store water, facilitating the expansion of exotic species that increase ... -
Construction and validation of a questionnaire to measure sustainable practices that create value in agricultural organizations
(Sello Editorial UNAD, 2020-07-07)Contextualization: Guasave is a municipality located in the northwest of Mexico, it is part of the 18 municipalities of the State of Sinaloa, it´s considered one of the richest regions in the country's agricultural activity, according to the volume of production and nationally sown area. Research gap: The global warming, the pollution and erosion of soils and waters, have seriously affected agriculture, therefore, it ...
