RESUMEN La producción de banano (Musa AAA Simmonds cv. Williams) para exportación en Urabá, Colombia es una fuente importante de ingresos para la región, lo que se ve reflejado en la oferta aproximada de 40 000 puestos de trabajo. El proceso productivo requiere investigación en diversos temas, siendo la fertilización una prioridad. En el presente estudio se evaluó el efecto de dosis de N sobre las relaciones nutricionales existentes en el racimo de banano en dos ciclos. Se empleó un cultivo de sexta generación, el cual fue evaluado durante las etapas de llenado de fruto y cosecha. Se utilizó un enfoque multivariado para el análisis de varianza del diseño en medidas repetidas, con dos factores entre-sujetos (fertilización y repeticiones) y uno intrasujetos asociado al ciclo. Se ajustaron los modelos con las etapas fenológicas. Se encontró sinergia entre Mg:Ca+N, Zn:B, K:Cu, K:P, y Ca:Cu siendo las relaciones K:P y K:Cu las únicas que presentaron un comportamiento directamente proporcional con las variables de producción. Valores óptimos de la interacción K:Cu+K:P (35.11-39.05) conllevaron a una mayor acumulación de masa seca en el racimo (4.24 kg) en los tratamientos de 321.8 y 483 kg ha-1 de N para las etapas evaluadas.

ABSTRACT The production of bananas (Musa AAA Simmonds cv. Williams) for export in Uraba, Colombia is an important source of income for the region, reflected in the offer of approximately 40,000 jobs. Production requires research into various subjects, with fertilization being a priority. In this study, the effect of N doses on the nutrient relationships existing in a banana bunch during two cycles was evaluated. A sixth-generation plantation was used and evaluated during the fruit filling and harvest stages. A multivariate approach was used for the analysis of variance of the design in repeated measures, with two factors between subjects (fertilization and repetitions), and one intra-subject associated with the cycle. The models were adjusted with the phenological stages. Synergy was found between Mg:Ca+N, Zn:B, K:Cu, K:P, and Ca:Cu, with K:P and K:Cu ratios being the only ones that showed a directly proportional behavior with the production variables. Optimal values of the interaction K:Cu+K:P (35.11-39.05) led to a greater accumulation of dry mass in the bunch (4.24 kg) in the treatments of 321.8 and 483 kg N ha-1 for the evaluated stages.

OBJECTIVE: Design and develop a mobile messaging system called mSalUV, which reminds patients with type 2 diabetes about taking their medication and attending appointments and promotes healthy lifestyles, and explore patient opinion regarding use of the system. METHODS: The study had three stages: 1) design and development of mSalUV; 2) design and development of text messages; and 3) exploration of patient opinion regarding use of mSalUV. RESULTS: The mSalUV system was created and around 40 text messages were designed. A total of 1 850 messages were sent during the 45 day intervention. Patients thought that mSalUV helped them to treat their disease and that it was easy to use, they were inclined to continue using the system in the future, and people close to them (family members and support networks) supported them using it. Furthermore, they perceived the system as "someone that cared about them." CONCLUSIONS: The results suggest that a system such as mSalUV would be well accepted by its potential users; in this case, people with type 2 diabetes. This presents a very interesting scenario that will enable taking advantage of new technologies for health. Further research is needed to evaluate the system's efficiency and effectiveness.

OBJETIVO: Diseñar y desarrollar un sistema de mensajería móvil llamado mSalUV, que permita recordar a pacientes con diabetes mellitus tipo 2 la toma de medicación y la asistencia a citas y que promueva estilos de vida saludables, así como explorar su opinión con respecto al uso del sistema. MÉTODOS: Se consideraron tres etapas: la primera incluyó el diseño y desarrollo de mSalUV. La segunda abarcó el diseño y construcción de los mensajes de texto. La tercera exploró la opinión de los usuarios con respecto al uso de mSalUV. RESULTADOS: Se obtuvo el sistema mSalUV, además se diseñaron alrededor de 40 mensajes de texto. Durante los 45 días del período de intervención se envió un total de 1 850 mensajes. Los usuarios opinaron que mSalUV los ayudaba en el tratamiento de su enfermedad, que era de fácil uso, mostraron una actitud favorable para continuar su uso en el futuro, además de que las personas cercanas a ellas (familiares y redes de apoyo), estaban de acuerdo en que lo utilizaran. Por otra parte, percibieron al sistema como "alguien que los quería". CONCLUSIONES: Los resultados presentados nos sugieren que un sistema como mSalUV sería bastante aceptado por los posibles usuarios, en este caso, personas con diabetes mellitus tipo 2. Esto nos plantea un escenario muy interesante que permitirá aprovechar a las nuevas tecnologías en beneficio de la salud. Se requieren más investigaciones para evaluar la eficacia y efectividad del sistema.

Nos últimos anos, o uso de testes de exercício é reconhecido como um método conveniente na avaliação da função respiratória em função da necessidade de se conhecer as reservas dos vários sistemas corporais a fim de que uma ideia mais completa sobre as capacidades funcionais do paciente seja obtida. Visto que o ato de andar é uma das principais atividades da vida diária, os testes de caminhada têm sido propostos para medir o estado ou a capacidade funcional do paciente. O teste de caminhada de seis minutos provou ser reprodutível e é bem tolerado pelos pacientes. Ele avalia a distância que uma pessoa pode percorrer sobre uma superfície plana e rígida em seis minutos e tem como principal objetivo a determinação da tolerância ao exercício e da saturação de oxigênio durante um exercício submáximo. Nesta revisão, apresentamos várias áreas clínicas nas quais o teste pode fornecer informações úteis.

Over the last few years, the use of exercise tests has come to be recognized as a convenient method of evaluating respiratory function, because the reserves of the various systems in the human body should be known in order to provide a more complete portrayal of the functional capacities of the patient. Because walking is one of the main activities of daily living, walk tests have been proposed in order to measure the state or the functional capacity of patients. The six-minute walk test has proven to be reproducible and is well tolerated by patients. It evaluates the distance a person can walk on a flat, rigid surface in six minutes. Its main objective is to determine exercise tolerance and oxygen saturation during submaximal exercise. In this review, we present various clinical areas in which the test can provide useful data.