Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Rabbit production has been set as a production alternative that might contribute to domestic units alimentary safety; however in Morelos state even when it is known that this specie is being produced, its importance within domestic units remains unknown reason why this work objective is to determinate the backyard cuniculture characteristics as an alternative to achieve alimentary safety. Exploratory descriptive methodology was employed by applying interviews, surveys and field trips using a non-probabilistic snow ball sampling. 33 interviews where applied and 51 rabbit producers located in 17 Morelos municipalities from different climates where surveyed. Findings show 86% use families workforce, 29% of decision makers are women, 73% raises rabbits and other animals, like birds, pigs, and cattle, 55% interviewees sow different crops, producing rabbit main reasons are the specie affinity, self-consume, saving, and additional income obtention that assures alimentation and reproduction.

The valuation of software consists of the process of quantifying the effort involved to develop a software system. There are several methods and models to estimate this cost, and the main factors to take into consideration are the software size, interfaces, developing time, among others. This study shows an estimation from the economical point of view of the contribution of the software developed at the Agricultural Polytechnic of Manabí (ESPAM MFL) toward the society. For the purpose, the computer systems developed by the students at the computing school during five years were analyzed (from 2012 to 2016), based on the operability and the economic quantification. As a methodology, models COCOMO II and COSYSMO were carried out, after the development; although with limitations in the collecting of data for the valuation. By means of the field research it was determined that 33,6% of the software developed was installed. Carrying out the models above mentioned, it was estimated that about USD $344.033,00 and $504.194,00 with regard to the installed software, as a benefit handed to the society through its development; and between USD $1.023.907,00 and $1.500.578,00 the estimated cost of all the software developed.

This research aimed to determine flowering and the diversity of pollinators linked with three breeding substrates in a monoculture system of fine flavor cacao. For the purpose, nine plots of nine trees each were selected, the trial consisted of three treatments corresponding to breeding substrates (plantain pseudostem, cacao pod shells, and cacao leaf litter). Three branches from the central tree within each plot were selected, the total number of flowers, pollinated flowers, and fertilized flowers (fruit set) were counted. In addition; several species of pollinator insects (Diptera: Ceratopogonidae) were trapped using “pyramid” type traps, they were collected from the three breeding substrates under study. A randomized complete block design with three replicates and a faunistic analysis with the pollinator populations were carried out. There were no significant differences for number of flowers, pollination percentage, and flower set between plots for the three breeding substrates. However; pollination and cocoa flower set was higher in plots with cacao pod shells. While plots with plantain pseudostem showed plenty of pollinator insects from the family Ceratopogonidae.   

Universities have among their objectives to contribute to the society and its immediate environment. This contribution can be framed within a specific project, or be done through the work their students and teachers do. Students of the Faculty of Computing Sciences at ESPAM MFL carry out work related to their training, most of them oriented to the development of programs and systems that can be produced and implemented. This work aims to characterize the organizations in Zone 4 for which the faculty has created software. In this regard, the information of the work carried out by students during five years (2012-2016) was analyzed, applying a categorization based on the type of organization and the sector it belongs to. Besides, the literature search method was applied to determine the contribution of these systems to the development guidelines of the Zone 4. It was determined that 60.91% of the organizations for which systems or applications were developed were public, 35, 45% private, and 3.64% community. The Services area was where the work was mostly oriented with 80% of them. In addition, as part of the contribution to the strategic objectives of the area, 76.36% of the software developed can contribute to the increase of the percentage of people using TICs.

The present research was developed with the aim of determining what the main techniques of data mining applied to education are, in order to show the level of coincidence and to identify what needs meet the use of such technics. Through the use of desk research of reviewing scientific articles, publications that show greater support for the purposes of the analysis were filtered, classified, and selected, a total of 25 articles published generally in English and Spanish between 2010 and 2018 were compiled. After data compilation a matrix was developed for the application of data mining for the selected articles which contain the characteristics to be evaluated (technics and tools). This allowed to perform a statistical analysis regarding the level of coincidence of the evaluated characteristics to determine which were predominantly used. Analyzing the articles, it was found that most of them are focused on the development of discovery methods that analyze educational data repository in order to understand students, learning environment, and factors that influence academic performance, the research determined that one of the most experienced techniques is the classification and the most used tool WEKA (Waikato Environment for Knowledge Analysis) software.

Process mining is a relatively new research discipline which uses techniques and tools that allow to determine the organizational structure, to discover, to monitor, and to improve real processes over a variety of application domains, through collecting knowledge from the event logs available in the information systems. This work aimed to find out what is the application that process mining has had in the Ecuadorian environment, taking as research methodology the search of writing evidence in scientific articles by means of planning and implementation of a systematic review of the topic. The results showed very few studies regarding process mining implementation according to the inclusion criteria stated in the protocol of the systematic review. It is concluded that the discipline is in an initial state in terms of practical application, since its few uses have been limited to the educational field. According to the global framework in which process mining is applied currently, the paper describes the organizations where this discipline could be applied in the Ecuadorian environment and the impact that could be achieved.

The objective of the research was to evaluate the post-harvest quality of red dragon fruit in three stages of maturity. The treatments were initial maturity (25-50%), average (50-75%) and complete (75-100%), depending on the skin color. The fruits were stored in a cold room at 20 ° C. The design was completely randomized with three treatments, seven replicates and 21 experimental units. The experimental unit was made up of 20 fruits. Weight, firmness, total soluble solids, acidity and maturity index were recorded at 0, 3, 6 and 9 days after harvest. The fruit weight was significantly influenced by the maturity stages (p <0.05), and showed a linear reduction in time, regardless of the state of maturity, where the complete stage of maturity experienced the greatest reduction. Firmness of the fruit showed a similar behavior to the weight; however, there were not statistically significant differences between maturity stages (p> 0.05). Acidity and total soluble solids also showed a downwardly linear behavior over time, statistically significant differences (p <0.05) were found between treatments, complete maturity stage obtained the highest acidity and concentration of Brix degrees at all evaluated stages. The maturity index was significantly affected by the maturity stages (p <0.05), showing a notable increase in time, where the values ​​reached were less than 40, which is ideal for its consumption. It is concluded that the maturity stage influences the post-harvest quality of the fruit, except for firmness.

Soil wetness has important agricultural implications. Reasons for the upsurge soil moisture in situ monitoring increase. Data interpretation is severely limited without soil property data. The agricultural soils need, thermodynamically, proper irrigation for plant physiological processes. The objective was to investigate soil physical parameters disturbance by soil wetness interrelated with root growth in a savanna loam soil. Experimental units consisted of (a) 9 polyvinyl cylinders, 15.24 cm in diameter and 20 cm height, with a soil volume of 2.50 kg/cylinder for infiltration estimations (b) 48 square glass container 3x15x15 cm for root growth assessments and 18 porometers for porosity evaluations. Statistical analysis under a randomized block design with three replications and three factors: humidity with five levels (3, 6, 9, 12 and 15%), soil depth (0-15, 15-30 and 45-60) and compaction with three levels (0, 13 and 26 blows).  Soil shear and density are independent soil variables; but also, both are wetness dependent. The infiltration effect on bulk density and shear tension resulted in inversely proportionally. The soil apparent dry densities (bulk density) or wet, are dynamic variables that change with natural drying processes. Soil water retention rises as bulk density increases. Root growth offers weightier variability with respect to shear than versus bulk density. Root growth showed its greatest at lower shear tension, lower bulk density and daily and every two days of irrigation. Irrigating this soil every two or three days will give progress to roots. Wetness is the fulcrum of all other soil properties for plant existence requirements.

This research aimed to evaluate the effectiveness of biostimulants on the initial growth of bean seedlings (Phaseolus vulgaris L.). The tested biostimulants were amino acids, carbohydrates, Chlorella extract, Ascophyllum nodosum extract, humic and fulvic acids, phytohormones, and a control treatment. The treatment application was carried out by soaking the seeds in biostimulant solutions for 12 hours, then planted in pots of 500gr of capacity, and at seedling emergence the biostimulants were applied through drench. A randomized complete block design with seven treatments, three replicates, and 21 experimental units was carried out. The main variables recorded were root length, leaf area, dry weight, efficacy and relative growth rate (RGR), net assimilation (NA) and leaf area ratio (LAR) at 7, 14, and 21 days after emergence (DAE). Data were subjected to analysis of variance and comparison among means with Tukey at 5% error-probability. Results showed significant differences (p<0.05) for root length, leaf area, and dry weight of seedlings at 21 DAE, where biostimulants based on phytohormones, amino acids, and Chlorella extract showed the best averages when compared with the control; In addition, these treatments showed higher RGR, NA, LAR at 21 DAE. The highest efficacy for dry weight was 143% when applying phytohormones compared with the control. It is concluded that biostimulants were effective on promoting initial growth of bean seedlings.

With the goal of improving the cassava seedlings propagation methods into large scale propagation the autotrophic hydroponic system was applied, the cassava genotypes: INIAP Portoviejo-650 (IP-650), INIAP Portoviejo-651 (IP-651), CM-3306-4-1 and CM-3300-19 were evaluated on substrates: peat, and coconut fiber, and nutrient solutions: Murashige-Skoog, YaraMila-Complex, and water; for the purpose, a completely randomized design with factorial arrangement 4x2x3 and three replicates was carried out. The interaction between treatments IP-650 on peat and YaraMila-Complex (A1B2C2) showed the best multiplication ratio (1:10) in three months. Genotype CM-3306-4-1 was better than the other treatments sin some of the variables evaluated such as: number of nodes, number of leaves, and main root length. Peat showed the highest averages for the variables stem length, stem diameter, number of nodes, and number of leaves. The plants treated with the solution Murashige-Skoog best expressed their agronomic characteristics. In the greenhouse, seedlings were acclimatized and strengthen during 60 days before taking them to the field, seedling survival rate was 92,12%. In the field, Genotypes adapted well to their new conditions, in such a way that the survival rate was 98,49%. The lower seedlings cost was $ 0,39 for treatment IP-650 with peat and YaraMila-Complex (A1B1C2) and IP-650 with peat and water (A1B1C3).