Coffee husk mulch on soil erosion and runoff: experiences under rainfall simulation experiment

[EN] The high erosion rates found in the agriculture land make valuable the use of mulches to control the soil and water losses. Coffee husk (Coffea canephora var. robusta) can be one of those mulches. This paper evaluates how to apply the mulch in order to obtain the best effectiveness. An experimental factorial design 4×3×2 with two replicates was designed in a greenhouse with a total number of 48 cases. All the samples were deposited in trays of 0.51m2 and applied a simulated rain of 122mmh−1 during 21 min. The factors examined were the following: four soil classes; three treatments buried (B), surface (S) and non-residue (C) and the presence (WC) or absence (WOC) of the soil surface crusting. The coffee husk residue (S and B treatments) reduced runoff by 10.2 and 46% respectively, soil losses by 78.3 and 88.7% and sediment concentration by 77 and 84.4 %. The infiltration rate increased on average by 104 and 167 %, and time to runoff by 1.58 and 2.07 min respectively. Coffee husk is an efficient mulch to reduce the soil and water losses, although it could not completely cushion the influence of crust.Moreno-Ramón, H.; Quizembe, S.; Ibañez Asensio, S. (2014). Coffee husk mulch on soil erosion and runoff: experiences under rainfall simulation experiment. Solid Earth and Discussions. 5:851-862. doi:10.5194/se-5-851-2014S8518625Abdelkadir, A. and Yimer, F.: Soil water property variations in three adjacent land use types in the Rift Valley area of Ethiopia, J. Arid Environ., 75, 1067–1071, 2011.Adekalu, K. O., Okunade, D. A., and Osunbitan, J. A.: Compaction and mulching effects on soil loss and runoff from two southwestern Nigeria agriculture soils, Geoderma, 137, 226–230, 2006.Bakr, N., Weindorf, D. C., Zhu, Y., Arceneaux, A. E., and Selim, H. M.: Evaluation of compost/mulch as highway embankment erosion control in Louisiana at the plot-scale, J. Hydrol., 468–469, 257–267, 2012.Bekalo, S. 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Sobre la conjetura de la sensibilidad y su resolución vía teoría de grafos

La teoría de la complejidad computacional es una de las grandes áreas dentro de las ciencias de la computación. En este trabajo, expondremos el enfoque matemático dentro de esta disciplina, restringiéndonos al caso de las funciones booleanas. Para ellas, definiremos algunas de las medidas de complejidad más interesantes y probaremos que todas ellas son equivalentes, en el sentido de que están polinómicamente relacionadas. Aunque desde 1994 se conoce gran parte de estas relaciones entre medidas de complejidad de funciones booleanas, hasta 2019 no se consiguió probar la equivalencia de todas ellas, y esto se consiguió demostrando la llamada conjetura de la sensibilidad, que recibe este nombre en honor a una de las medidas estudiadas. En su demostración juega un papel muy importante la teoría de grafos, que abre nuevas líneas de investigación y muestra una conexión potente y bonita con la teoría de la complejidad.Departamento de Algebra, Geometría y TopologíaGrado en Matemática

Análisis en una serie de vigilancia activa. Factores relacionados con la evolución, la calidad de vida y la ansiedad

ADHERENCIA AL PROTOCOLO DE VIGILANCIA ACTIVA EN SALAMANCA: 2014-2020 y DESCRIPTIVO DE LOS PACIENTES, influenciado por el Covid 19.[ES]El cáncer de próstata es uno de los tumores que más afecta a los varones de la cuidad de Salamanca, para subsanar esta enfermedad se ha apostado por Vigilancia Activa, una alternativa a la cirugía para aquellos pacientes con bajo riesgos. A esta patología hay que sumarle algunos factores que influyen en la misma como la ansiedad, su calidad de vida ,para ello se ha pensado en la incorporación de una enfermera gestora de los casos uro-oncológicos, para valorar a los pacientes, servir de enlace entre paciente y equipo de trabajo, de esta manera se puede mejorar de manera óptima la atención sanitaria de los pacientes

The experiences of men who self-harm:A qualitative analysis

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Uno de los grandes problemas de salud al que tenemos que hacer frente, a nivel mundial, es el suicidio. El suicidio es un estigma, nunca se ha hablado y se ha tratado de víctimas ocultas a las personas que se han suicidado. Conocer los factores asociados a la conducta suicida, ayudaría a salvar vidas y evitar mucho sufrimiento. Saber cuáles son los factores de riesgo y protectores permitiría diseñar programas de prevención más eficaces. El suicidio es una conducta resultado de un largo proceso en el que se puede distinguir distintas fases. Las trabajadores sociales en este ámbito tienen un papel fundamental, tanto antes como después del suicidio y de la ideación suicida. Actualmente, en Castilla y León está vigente la “Estrategia de prevención de la conducta suicida en Castilla y León, 2021/2025” y el “Proceso de prevención y atención de la conducta suicida”. Además, se ha puesto en funcionamiento, recientemente, el teléfono del suicidio “024”. Con el fin de estudiar de forma prospectiva la opinión de la población general, se ha realizado una encuesta acerca de los mitos existentes alrededor del suicidio. Han participado un total de 347 personas, ofreciendo su punto de vista en lo que al suicidio respecta.Departamento de Sociología y Trabajo SocialGrado en Trabajo Socia

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Reasons for donating blood amongst medical staff

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Métodos para la determinación del coeficiente de escorrentía

En este artículo analizan los diferentes métodos para estimar la producción de escorrentía a partir de las características del terreno sobre el que se produce la precipitación pluvialIbañez Asensio, S.; Moreno Ramón, H.; Gisbert Blanquer, JM. (2011). Métodos para la determinación del coeficiente de escorrentía. http://hdl.handle.net/10251/1078

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