Molybdenum dosage and application timing in sweet corn by Cecílio-Filho, Arthur Bernardes, López-Aguilar, Miguel Angel, Rugeles-Reyes, Sergio Manuel, Mendoza-Cortez, Juan Waldir

“…The present study aimed to evaluate the effect of three levels of molybdenum (Mo) (150, 300 and 450 g ha-1), via foliar spraying, with different  application timing (E1: 100% at 15 days after  emergence - DDE; E2: 100% at 30 DDE; E3: 100% at 45 DDE; E4: 50% at 15 and 30 DDE, and E5: 33.3% at 15, 30 and 45 DDE) on the agronomic performance of sweet corn ‘SVN 9298’. …”

Rice husk substrates and pruning time for gypsophila production by Höhn, Daniela, Peil, Roberta Marins Nogueira, Perin, Lais, Marchi, Priscila Monalisa, Grolli, Paulo Roberto, Wieth, Albertina Radtke

“…The treatments were the result of the combination of four substrates [carbonized rice husk (CRH100%), raw rice husk (RRH100%), CRH + organic commercial substrate S10 (Beifort®) (15%) and RRH+S10 (15%)] with two pruning times (early and late). …”

Rice husk substrates and pruning time for gypsophila production by Höhn, Daniela, Nogueira Peil, Roberta Marins, Perin, Lais, Marchi, Priscila Monalisa, Grolli, Paulo Roberto, Radtke Wieth, Albertina

The urea and time effect in the fermentation in the soIid state of the fruit s fIour of the bread tree (Artocarpus altilis) by Brea-Maure, Odelin, Elías-Iglesias, Arabel, Ortiz-Milán, Abel, Motta-Ferreira, Walter, Hechavarría-Riviaux, Suset

“…At the end of the fermentative process there was a decrease in the MS (P <0,001) as the fermentation time passed. The addition of 1,5% of urea produced an increment in the concentration from PB at 24 48 h without difference among them, something similar happened with the PV and the relationship among them (PV:PB)*100 without interaction among the factors in study.At 48 h there was an increase bigger than 2,15 percentage units in the PB with regard to the zero hour. …”

Econometric modeling and sales forecasts of ginger rhizome in Ecuador by Sabando García, Ángel Ramón, Ugando Peñate, Mikel, Armas Herrera, Reinaldo, Higuerey Gómez, Ángel Alexander, Espín Estrella, Grace Margarita, Villalón Peñate, Antonio

“…Statistical techniques were used for the mathematical, statistical and graphic analysis of simple linear regression and time series using SPSS version 25 software. The results show a high covariance, exerted by the price/kg number whose prediction fits an ARIMA (0,1,0) (0,0,0), with respect to exports/kg ARIMA (2,0,0) (1,0,0) is adjusted andbased on sales/thousands of dollars to an ARIMA (0,0,0) (0,0,0). …”

Una fuente de corriente sinusoidal para aplicaciones de bioimpedancia basado en un algoritmo de control no lineal en tiempo discreto by Trujillo, Vladimir, Rengifo, Carlos F., Bravo Montenegro, Diego Alberto

“…The developed device is able to produce a sinusoidal current signal of a frequency ranging from 100 Hz to 120 kHz and currents from 500 μA to 2 mA. …”

CHANGING PATHS” LATIN AMERICAN UNIVERSITIES GOING VIRTUAL by RAMA, CLAUDIO

“…Hypotesis is presented as  typology of higher education institutions responding ways towards ICT such as re-engineering of online and part time institutions, new offers of college education 100% online, become special subjects of university’s education into online programs and so as online management information trend. …”

Los valores y la convivencia una tarea significativa en la vida escolar by Hernández Castro, Jenny Katherin

Effect of different sowing densities and substrates on the growth of arugula seedlings by Menegaes, Janine Farias, Fiorin, Tatiana Tasquetto

“…Except for 100% SD composition, an average of 70% of seedling emergence was at 9.7 d. …”

Los valores y la convivencia una tarea significativa en la vida escolar by Hernández Castro, Jenny Katherin

Análisis multitemporal de la cobertura vegetal, zonas de erosión y dirección del cauce, en la cuenca del río Cravo Sur, comprendido desde el municipio de Socha en el departamento d... by Sanabria Lombana, Bryan Javier

Colorimetric analysis of leaves of plants exposed to cadmium. by Rodríguez Acevedo, Andrés Felipe, Velandia Torres, Lina Tatiana, Ramírez Rincón, Jorge Andrés, Reyes Roa, yulieth Catherine

“…In this study, morphological changes were evaluated by means of an analysis of variance for the colorimetric parameters of chroma, hue and gloss in leaves of Basil (Ocimum Basilicum), Peppermint (Mentha spicata), Lettuce (Lactuca sativa) and Spinach (Spinacia oleracea) plants grown under the floating root method in solutions containing cadmium at 100 µg/L. The results obtained indicate significant changes in each of the parameters considering the exposure time. …”

Could the production region influence the quality and antioxidant activity of cashew apple? by Almeida, Maria Lucilania Bezerra, Moura, Carlos Farley Herbster, Innecco, Renato, Silveira, Márcia Régia Souza da, Brito, Edy Sousa De

“…The experimental design was completely randomized, in a factorial scheme with repeated measurement in time, with three clones (CCP 09, BRS 265 and PRO 555-1) in two regions, cearense semiarid, sertão (Alto Santo – CE) and a coast (Beberibe – CE), with four replications and evaluated in different years. …”

Volcanoes monitoring using Arduino and Simulink platforms by Altamirano-Santillán, Edwin Vinicio, Vallejo-Vallejo, Geovanny Estuardo, Cruz-Hurtado, Juan Carlos

“…In the same way, a temperature meter with a heater-resistance PT100 was also implemented. The experimentation allowed verifying the functionality of both, the inclination and temperature meters, throwing satisfactory results and with adequate relative errors. …”

Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment by Becerra Moreno, Dorance, Caicedo Cáceres, Neldy Yareth, Velásquez Lázaro, Claudia Marcela, Machuca Martínez, Fiderman, Soto Verjel, Joseph Wbeimar

Synthesis of an Anticorrosive Pigment by Thermal Treatment of Iron Oxides from Steel Industry Wastes by Colpas-Ruiz, María Angélica, Gnecco-Molina, Camilo, Jiménez-Rodríguez, Gabriel Antonio, Pérez-Mendoza, José Andrés, Higuera-Cobos, Óscar Fabián

“…The results showed that the pigment with the highest amount of hematite (ɑ-Fe2O3) was obtained at a calcination temperature of 850 °C and a holding time of 1.00 h.…”

Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction by Gómez Cuaspud, Jairo Alberto, Pérez Bustos, Hellem Geralding

“…The methane conversion was 97±2 % and the selectivity of H2 was 96.5% at 700 °C and the stability test was performed during 240 hours, using the catalyst under similar reaction conditions. After 100 h with time on stream the catalyst led to a deactivation which is attributed to the growth of crystallite sizes. …”

La construcción de indicadores de la actividad económica : una revisión bibliográfica by Sierra Suárez, Lya Paola, Collazos Rodríguez, Jaime Andrés, Sanabria Domínguez, Johana, Vidal Alejandro, Pavel

Synthesis of Zβ From Fly Ashes, Used In Controlled Release Of Nitrates by García Barrero, Jenny Andrea, Pazos Zarama, Mery Carolina, Chaparro Barajas, Javier Ramiro, Fonseca Martínez, Deisy Alejandra, Pavón González, Esperanza, Alba Carranza, María Dolores

“…To obtain the zeolite beta, silicon source and aluminum source of gel mother and crystallization time were varied, keeping a nominal composition, so that 50SiO2: 1Al2O3: 25TEAOH: Na2O: K2O: 17H2O. …”

Breaking the dormancy of grapevine (Vitis vinifera L.) budswith the application of garlic extract (AlliumsativumL.) under tropical high-altitude conditions by Almanza M., Pedro José, Serrano C., Pablo Antonio, Fischer, Gerhard, Balaguera-López, Helber Enrique

“…A completely randomized design was used with four treatments (garlic extract 100%, garlic extract 50%, hydrogen cyanamide and control) with five repetitions. …”