ResumenSe evaluó el potencial acidogénico de la melaza de la industria azucarera en 4 diferentes OLR (6,02±4,33;13,96±7,11;15,81±4,83; 26,94±13,27kgDQO/m 3 .d) en un reactor de fl ujo ascendente, con lodo granular. El sistema no contó con control de pH e inhibición de la fase metanogénica. El reactor operó en continuo durante 148 días. Para evaluar el potencial acidogénico se utilizó el grado de acidifi cación neto (GAn). Los resultados mostraron que durante las tres primeras OLR el %GAn (29,46 ± 13,01; 20,23 ± 13,67; 24,63 ± 19,49) se mantuvo sin diferencias signifi cativas, pero para la mayor OLR el %GAn disminuyó a la tercera parte (10,21 ± 7,14), mientras la concentración de AGV fue la mayor para esta fase (2644,89mgDQO/L), además se avaluó el balance de DQO para cada una de las fases, donde el % de AGV en el efl uente representó el porcentaje orgánico fermentable rápidamente en el efl uente, estos valores indican que con una recirculación interna se podría mejorar el %GAn u obtener otra serie de productos de base biológica para el aprovechamiento de este residuo. En este artículo se utilizó un reactor de fl ujo ascendente como alternativa a los estudiados (CSRT y batch) presentando diferentes resultados. Palabras clave: digestión anaerobia, grado de acidifi cación neto, ácidos grasos volátiles, biorefi nerias, melaza de caña de azúcar. AbstractThe acidogenic potential of molasses from the sugar industry was evaluated using 4 different Organic Loading Rates (OLR) (6.02±4.33; 13.96±7.11; 15.81±4.83; 26.94±13.27kgCOD/m 3 .d) in an upfl ow reactor with granular sludge. No pH control or methanogenesis inhibitors were used. The reactor was continuously operated during 148 days. The acidogenic potential was evaluated based on the net degree of acidifi cation (DAn). For the fi rst 3 OLR, %DAn did not show any signifi cant variability (29.46 ± 13.01; 20.23 ± 13.67; 24.63 ± 19.49), but for the highest OLR, %DAn dropped to a third of its initial value (10.21 ± 7.14), although the volatile fatty acid (VFA) concentration was the highest (2644.89mgCOD/L). Also, a COD balance was done for each of the 4 OLR. The VFA percentage in the effl uent was assumed to be

Given the intermittent nature of basketball and the different demands that occur during playing time that are specific to every level of competition, the ratio of accelerations/decelerations and the intensity level across quarters were evaluated in female elite junior basketball players (n = 48; age: 16.8 ± 0.7 years; height: 1.76 ± 0.07 cm; body mass: 67.2 ± 6.2 kg). The following variables were analyzed to determine physical persistency across game quarters:(a) total distance covered (m), (b) high-intensity running (HIR) (14–21 km·h−1) distance covered (m), (c) sprint (21–30 km·h−1) distance covered (m), (d) total accelerations (n), (e) total decelerations (n), (f) relative accelerations (n·min−1), (g) relative decelerations (n·min−1), (h) ratio of acceleration/deceleration (A/D), (i) total jumps (j) relative jumps (n·min−1) (k) player load (AU). using the WIMU PRO® system. Higher but shorter acceleration intensity occurred during the last quarters due to the tight results of the matches. The results suggest that high-intensity efforts such as sprints and HIR seem to increase the A/D ratio (guard and forward positions). Therefore, specific conditioning, as well as eccentric strength training, could be included by practitioners in training programs to improve the performance of these positions during competition, especially as a prior preparation to a game-congested event. Centers seem to have a more variable performance through quarters than do other positions, perhaps highlighting the need for specific conditioning strategies.

Lanzamientos de 2 puntos anotados L2f Lanzamientos de 2 puntos fallados L3a Lanzamientos de 3 puntos anotados L3f Lanzamientos de 3 puntos fallados TLa Tiros libres anotados TLf Tiros libres fallados TC Tiros de campo RD Rebotes defensivos RO Rebotes ofensivos AS Asistencias PdB Pérdidas de balón RcB Recuperaciones de balón TC Tapones cometidos TR Tapones recibidos FC Faltas Personales cometidas FR Faltas Personales recibidas ACP Análisis de los Componentes Principales CCE Coeficientes canónicos estructurales 1. INTRODUCCIÓN *