El objetivo de la investigación fue: Determinar la relación entre las estrategias motivacionales y desarrollo de capacidades matemáticas en los estudiantes del II ciclo, Escuela de Ingeniería Civil, Universidad César Vallejo, 2017. Es de tipo básica, de diseño no experimental, transversal – correlacional. La población es censal estuvo conformada por 172 estudiantes del II ciclo; los cuestionarios cumplieron con los requisitos de validez y la confiabilidad. El método que se utilizó fue el hipotético deductivo, para el análisis de datos se aplicó la prueba no paramétrica Rho de Spearman. Los resultaron determinaron que las estrategias motivacionales se relacionan (Rho=0, 714) y significativamente (p=0.000) con el desarrollo de capacidades matemáticas en los estudiantes del II ciclo, Escuela de Ingeniería Civil, Universidad César Vallejo, 2017.

The obtaining of vigorous plants in nursery guarantees the successful development of crops in the field. Fertilization of plants in nursery is one of the fundamental pillars in the establishment of crops that can remain for more than 15 years in the field. In this regard, the objective of this study was to determine the effect of organic fertilizers Churufer and Churubiol made in Finca Churupampas Chirinos-Cajamarca-Peru for the production of coffee seedlings (Yellow Caturra variety) from nursery. The experiment was conducted as a Randomized Complete Block Design (RCBD) with sixteen treatments, three blocks and ten plants per experimental unit. The organic fertilizers used were T1) Control without organic fertilizer, T2) Churufer (biosol), T3) Pachacushi (compost), T4) Guano Island, T5) Churubiol (biol), T6) Kapsitron (biol), T7) Huallquin-fer (biol), T8) Churufer+Churubiol, T9) Churufer...

The present research seeks to evaluate the use of a phytobiotic in the fattening phase of guinea pigs (Cavia porcellus) by predicting its impact on weight gain, feed consumption and feed conversion. A predictive model based on linear regression was developed to estimate the benefits of the phytobiotic. The guinea pigs that received the supplement showed a significant weight increase (1040.30 g compared to 967 g in the control group), as well as an improvement in feed conversion. This study suggests that the use of phytobiotics is a viable alternative to antibiotics, improving both productive efficiency and sustainability in guinea pig farming.