Nuevas ecuaciones de cubicación para pino silvestre en "aguas vertientes" (El Espinar, Segovia).

El monte "Aguas Vertientes" (El Espinar) es el nº 138 del C.U.P. de Segovia. Se trata de una masa natural de pino silvestre, con abundante melojo en sus cotas inferiores. Su primer Proyecto de Ordenación fue redactado en 1904, estando actualmente redactada y en fase de aprobación la novena revisión. La madera de pino obtenida es elaborada en un aserradero cercano, perteneciente a la misma entidad propietaria. Durante los últimos años los responsables de dicho aserradero vienen manifestando que la cubicación en pie realizada por la administración forestal presenta errores de magnitud suficiente como para ser necesaria su corrección. Este trabajo fin de carrera ha consistido en comprobar la fiabilidad de los valores modulares empleados hasta ahora, y elaborar nuevas ecuaciones de cubicación. Para ello se ha manejado una muestra de 234 pinos repartidos en malla cuadrada y cubicados en pie mediante el método de Pressler-Bitterlich. Como resultado, se propone una ecuación de doble entrada (función de diámetro normal y altura) para todo el monte; y una ecuación de una entrada (función de diámetro normal) para cotas superiores e inferiores a 1.500 m. Los nuevos modelos son validados mediante una muestra independiente

Influencia del instructor en la motivación del aprendiz, como elemento para la permanencia en la ruta formativa

The research aims to identify the influence of the instructor on the motivation of the apprentice under the methodological application of Action Research, achieving to date to recognize that he becomes a fundamental actor, because it offers the necessary external stimuli such as instruction, resources didactic, the support in the identification of learning goals as well as the interaction that occurs with the relationship cognition-motivation- instruction. These elements contribute to the generation of internal motivation that becomes the force capable of moving the student’s will to achieve his goals in terms of self-efficacy and resignification of the teaching-learning process within the framework of comprehensive professional training.La investigación pretende identificar la influencia del instructor en la motivación del aprendiz bajo la aplicación metodológica de la Investigación acción, logrando hasta la fecha reconocer que este se convierte en actor fundamental, debido a que ofrece los estímulos externos necesarios como son la instrucción, los recursos didácticos, el acompañamiento en la identificación de las metas de aprendizaje así como la interacción que se produce con el relacionamiento cognición-motivación instrucción. Estos elementos contribuyen a la generación de la motivación interna que se convierte en la fuerza capaz de mover la voluntad del educando para el logro de sus metas en términos de autoeficacia y resignificación del proceso de enseñanza aprendizaje en el marco de la formación profesional integral

Design Of the Approximation Function of a Pedometer based on Artificial Neural Network for the Healthy Life Style Promotion in Diabetic Patients

The present study describes the design of an Artificial Neural Network to synthesize the Approximation Function of a Pedometer for the Healthy Life Style Promotion. Experimentally, the approximation function is synthesized using three basic digital pedometers of low cost, these pedometers were calibrated with an advanced pedometer that calculates calories consumed and computes distance travelled with personal stride input. The synthesized approximation function by means of the designed neural network will allow to reply the calibration experiment for multiple patients with Diabetes Mellitus in Healthy Life Style promotion programs. Artificial Neural Networks have been developed for a wide variety of computational problems in cognition, pattern recognition, and decision making. The Healthy Life Style refer to adequate nutrient ingest, physical activity, time to rest, stress control, and a high self-esteem. The pedometer is a technological device that helps to control the physical activity in the diabetic patient. A brief description of the Artificial Neural Network designed to synthesize the Approximation Function, the obtained Artificial Neural Network structure and results in the Approximation Function synthesis for three patients are presented. The advantages and disadvantages of the method are discussed and our conclusions are presented

Resalveo de conversión sobre tallares de encina y quejigo ¿Qué ha pasado 15 años después?.

Los extensos tallares envejecidos de quercíneas mediterráneas son el resultado de una intensa gestión, consistente en la aplicación de cortas de matarrasa con turnos cortos durante largos períodos de tiempo. La pérdida de valor de leña y carbón vegetal provocó a partir de los años sesenta el abandono de dicha gestión. La ausencia de tratamientos de regeneración hace que muchas de estas masas presenten graves problemas selvícolas y ecológicos, así como falta de producciones directas. En este trabajo presentamos los resultados obtenidos tras ejecutar resalveos de conversión de diferente peso en tallares envejecidos de encina (Quercus ilex subsp. ballota) y quejigo (Q. faginea) situados en Guadalajara. El dispositivo experimental de parcelas permanents se instaló e inventarió en 1994. En 1995 se aplicaron resalveos de pesos variables entre 0 % (control) y 100 % de area basimétrica extraída. En 2011 se han realizado nuevos inventarios que nos permiten analizar, 15 años después del tratamiento, cuál ha sido la respuesta de diversos indices de espesura en funcion del peso de resalveo aplicado. También se analiza la aparición de masas mixtas como consecuencia de la incorporación, tras los resalveos, de regeneración de pino a partir de ejemplares aislados dispersos en la zona

The Impact of the Multi-core Revolution on Signal Processing

This paper analyzes the influence of new multi- core and many-core architectures on Signal Processing. The article covers both the architectural design and the programming models of current general-purpose multi-core processors and graphics processors (GPU), with the goal of identifying their possibilities and impact on signal processing applications

Implementación de la plataforma GOOGLE CLASROOM en la asignatura “Tratamiento de Residuos” para la realización de experiencia de clase inversa

[EN] During the academic year 2016-17 the flipped classroom methodology was implemented using the GOOGLE CLASS platform in the "waste treatment" subject. This methodology has allowed students to have more time in the classroom to solve doubts and practical problems, increasing collaborative work. Using this methodology, the self-assessment test score increased compared to other years and students prefer this methodology to the traditional master class as indicated in an anonymous survey.[ES] Durante el curso académico 2016-17 se ha implantado la metodología de clase inversa utilizando la plataforma GOOGLE CLASSROOM en la asignatura "Tratamiento de Residuos". Esta metodología ha permitido que los alumnos dispongan de más tiempo en el aula para resolver dudas y realizar prácticas, aumentando el trabajo colaborativo. Mediante esta metodología la nota media del test de autoevaluación subió respecto a otros años y los alumnos prefieren está metodología a la tradicional clase magistral según indicaron en una encuesta anónima.López Martínez, J.; Samper Madrigal, MD.; García García, D.; Ferri, J.; Carbonell Verdú, A. (2017). Implementación de la plataforma GOOGLE CLASROOM en la asignatura “Tratamiento de Residuos” para la realización de experiencia de clase inversa. En In-Red 2017. III Congreso Nacional de innovación educativa y de docencia en red. Editorial Universitat Politècnica de València. 429-437. https://doi.org/10.4995/INRED2017.2017.6818OCS42943

Inflammatory potential of diet and bone mineral density in a senior Mediterranean population : a cross-sectional analysis of PREDIMED-Plus study

Inflammation could play a key role in tissue damage and bone metabolism. The modified dietary inflammatory score (M-DIS) is a validated tool to estimate the inflammatory potential of the diet. In the present study, we evaluate the associations between the M-DIS and bone mineral density (BMD) in a senior Mediterranean population with overweight/obesity and metabolic syndrome. Baseline cross-sectional association between the M-DIS and bone mineral density was assessed in 1134 participants of the multicenter PREDIMED-Plus trial (aged 55-75 with overweight/obesity and metabolic syndrome). BMD was measured using Dual-energy X-ray Absorptiometry scans and participants answered a food frequency questionnaire to determine the M-DIS. BMD was categorized as low BMD when T score was equal or lower than -1 and normal BMD in another case. Associations between BMD and M-DIS were evaluated by using linear and logistic regressions adjusted by other co-variates. Participants in the top tertile of the M-DIS had a lower BMD at total femur [β (95% CI) − 0.02 (− 0.04, − 0.01)], trochanter areas [β (95% CI) − 0.03 (− 0.05, − 0.01)] and lumbar spine area [β (95% CI) − 0.03 (− 0.07, 0.01)] (but in the last case, measures were less precise and hence not statistically significant) compared to those in the lower M-DIS tertile. Multiple logistic regression analyses showed that the odds of the total femur and femoral trochanter osteopenia/osteoporosis were higher in participants in the top tertile compared to those in the lowest tertile of M-DIS [OR (95% CI) 1.71 (1.12, 2.64), P for trend 0.015; 2.02 (1.29, 3.21), P for trend 0.002, respectively]. A high pro-inflammatory diet, measured by the M-DIS, is associated with lower BMD in a senior Mediterranean population with metabolic syndrome. The online version contains supplementary material available at 10.1007/s00394-021-02751-5

Antioxidant supplementation modulates neutrophil inflammatory response to exercise-induced stress

Producción CientíficaThe aim of the present report was to evaluate the inflammatory response to a 2000-m running test considering neutrophil myeloperoxidase as an inflammatory marker, and to verify if supplements rich in antioxidants could modulate Post-test antioxidant and anti-inflammatory responses. To this end, a 21-day homogenization period was carried out with three groups: a control group, a supplemented group taking an almond beverage enriched with vitamins C and E and a third group consuming the same beverage but enriched with Lippia citriodora extract. At the end of this period, participants performed a 2000-m run, and blood samples were obtained the day before and immediately after the running test. Plasma and neutrophils were isolated. As a result, plasma creatine kinase and myoglobin increased, indicating Post-test muscle damage. Plasma oxidative markers were increased in all groups, except in the group supplemented with the almond beverage. Neutrophil antioxidant enzymes were significantly increased only in the control group, suggesting an antioxidant effect of the supplements provided in the other groups. Myeloperoxidase activity was significantly increased after the test in the control group, while increased enzyme levels were detected in plasma of the supplement groups. Therefore, antioxidant consumption seems to favour myeloperoxidase release. The connection of this observation with post-exercise recovery will require further investigation.Instituto de Salud Carlos III - Fondo Europeo de Desarrollo Regional (CB12/03/30038)Ministerio de Ciencia, Innovación y Universidades (Proyecto RTI2018-096724-B-C21)Generalitat Valenciana (proyecto PROMETEO/2016/006

Ventricular Fibrillation detection using time-frequency and the KNN classifier without parameter extraction

[ES] Este trabajo propone la detección de FV y su discriminación de TV y otros ritmos cardiacos basándose en la representación tiempo-frecuencia del ECG y su conversión en imágen como entrada a un clasificador de vecinos más cercanos (KNN) sin necesidad de extracción de parámetros adicionales. Tres variantes de datos de entrada al clasificador son evaluados. Los resultados clasifican la señal en cuatro clases diferentes: ’Normal’ para latidos con ritmo sinusal, ’FV’ para fibrilación ventricular, ’TV’ para taquicardia ventricular y ’Otros’ para el resto de ritmos. Los resultados para detección de FV mostraron 88,27% de sensibilidad y 98,22% de especificidad para la entrada de imágen equivalente reducida que es la más rápida computacionalmente a pesar de obtener resultados de clasificación ligeramente inferiores a las representaciones no reducidas. En el caso de TV, se alcanzó un 88,31% de sensibilidad y 98,80% de especificidad, un 98,14% de sensibilidad y 96,82% de especificidad para ritmo sinusal normal y 96,91% de sensibilidad con 99,06% de especificidad para la clase ’Otros’. Finalmente, se realiza una comparación con otros algoritmos.[EN] This work describes new techniques to improve VF detection and its separation from Ventricular Tachycarida (VT) and other rhythms. It is based on time-frequency representation of the ECG and its use as input in an automatic classifier (K-nearest neighbours - KNN) without any further signal parameter extraction or additional characteristics. For comparison purposes, three time-frequency variants are analysed: pseudo Wigner-Ville representation (RTF), grey-scale image obtained from RTF (IRTF), and reduced image from IRTF (reduced IRTF). Four types of rhythms (classes) are defined: ’Normal’ for sinus rhythm, ’VT’ for ventricular tachycardia, ’VF’ for ventricular fibrillation and ’Others’ for the rest of rhythms. Classification results for VF detection in case of reduced IRTF are 88.27% sensitivity and 98.22% specificity. In case of VT, 88.31% sensitivity and 98.80% specificity is obtained, 98.14% sensitivity and 96.82% specificity for normal rhythms, and 96.91% sensitivity and 99.06% specificity for other rhythms. Finally, results are compared with other authors.Mjahad, A.; Rosado Muñoz, A.; Bataller Mompeán, M.; Francés Víllora, JV.; Guerrero Martínez, JF. (2017). Detección de Fibrilación Ventricular Mediante Tiempo-Frecuencia y Clasificador KNN sin Extracción de Parámetros. Revista Iberoamericana de Automática e Informática industrial. 15(1):124-132. https://doi.org/10.4995/riai.2017.8833OJS124132151Classen, T. A. C. M., Mecklenbrauker, W. F. G., 1980. 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Distinguishing between Ventricular Tachycardia and Ventricular Fibrillation from Compressed ECG Signal in Wireless body Sensor Networks. In: Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE. pp. 2013-2016. https://doi.org/10.1109/IEMBS.2010.5627888Jekova, I., 2007a. Shock advisory tool: Detection of life-threatening cardiac arrhythmias and shock success prediction by means of a common parameter set. Biomedical Signal Processing and Control 2 (1), 25 - 33. https://doi.org/10.1016/j.bspc.2007.01.002Jekova, I., 2007b. Shock advisory tool: Detection of life-threatening cardiac arrhythmias and shock success prediction by means of a common parameter set. Biomedical Signal Processing and Control 2 (1), 25-33. https://doi.org/10.1016/j.bspc.2007.01.002Jekova, I., Krasteva, V., 2004. Real time detection of ventricular fibrillation and tachycardia. Physiological measurement 25 (5), 1167. https://doi.org/10.1088/0967-3334/25/5/007Jin, D., Dai, C., Gong, Y., Lu, Y., Zhang, L., Quan, W., Li, Y., 2017. Does the choice of definition for defibrillation and CPR success impact the predictability of ventricular fibrillation waveform analysis? Resuscitation 111, 48 - 54. https://doi.org/10.1016/j.resuscitation.2016.11.022Kabir, M. A., Shahnaz, C., 2012. Denoising of ecg signals based on noise reduction algorithms in emd and wavelet domain. Biomedical Signal Processing and Control l 7 (5). https://doi.org/10.1016/j.bspc.2011.11.003Kao, T.-P., Wang, J.-S., Lin, C.-W., Yang, Y.-T., Juang, F.-C., June 2012. Using bootstrap adaboost with knn for ecg-based automated obstructive sleep apnea detection. In: The 2012 International Joint Conference on Neural Networks (IJCNN). pp. 1-5. https://doi.org/10.1109/IJCNN.2012.6252716Kaur, L., Singh, V., May 2013. Ventricular Fibrillation Detection using Empirical Mode Decomposition and Approximate Entropy. International Journal of Emerging Technology and Advanced Engineering 3 (5), 260-268.Kaur, M., Singh, B., Seema, 2011. Comparison of different approaches for removal of baseline wander from ecg signal. In: Proceedings of the International Conference &Workshop on Emerging Trends in Technology. ICWET'11. ACM, New York, NY, USA, pp. 1290-1294. https://doi.org/10.1145/1980022.1980307Labatut, V., Cherifi, H., May 2011. Accuracy measures for the comparison of classifiers. In: Ali, A.-D. (Ed.), The 5th International Conference on Information Technology. Al-Zaytoonah University of Jordan, amman, Jordan, pp.1,5.Li, Q., Rajagopalan, C., Clifford, G. D., 2014. Ventricular fibrillation and tachycardia classification using a machine learning approach. Biomedical Engineering, IEEE Transactions on 61 (6), 1607-1613.Mahmoud, S. S., Hussain, Z. M., Cosic, I., Fang, Q., 2006. Time-frequency analysis of normal and abnormal biological signals. 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Springer International Publishing, pp. 532-535. https://doi.org/10.1007/978-3-319-13117-7Murakoshi, N., Aonuma, K., 2013. Epidemiology of arrhythmias and sudden cardiac death in asia. Circulation Journal 77 (10), 2419-2431. https://doi.org/10.1253/circj.CJ-13-1129Othman, M. A., Safri, N. M., Ghani, I. A., Harun, F. K. C., Ariffin, I., 2013. A new semantic mining approach for detecting ventricular tachycardia and ventricular fibrillation. Biomedical Signal Processing and Control 8 (2), 222 - 227.https://doi.org/10.1016/j.bspc.2012.10.001Phong, P. A., Thien, K. Q., Oct 2009. Classification of Cardiac Arrhythmias Using Interval Type-2 TSK Fuzzy System. In: Knowledge and Systems Engineering, 2009. KSE '09. International Conference on. pp. 1-6. https://doi.org/10.1109/KSE.2009.19Poularikas, A. D., 1999. The transforms and applications handbooks. ACRC Handbook published in cooperatio with IEEE Press, Depatment of electrical an computer engineering the univesity of Alabama in Huntsville.Rangayyan, R. M., 2002. Biomedical signal analysis: A case-study approach. In: IEEE Press Series in Biomedical Engineering.Ravindra Pratap Narwaria, S. V., Singhal, P. K., 2011. Removal of baseline wander and power line interference from ecg signal - a survey approach. International Journal of Electronics Engineering 3, 107-111.Rosado, A., Guerrero, J., Bataller, M., Chorro, J., 2001. Fast non-invasive ventricular fibrillation detection method using pseudo wigner-ville distribution. In: Computers in Cardiology 2001. pp. 237-240. https://doi.org/10.1109/CIC.2001.977635Saini, R., Bindal, N., Bansal, P., May 2015. Classification of heart diseases from ecg signals using wavelet transform and knn classifier. 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Ph.D. thesis, Departamento de Lenguajes, Sistemas Informaticos e Ingeniera de Software Facultad de Informatica Universidad Politecnica de Madrid, Director de Tesis: Jose Crespo del Arco.Viitasalo, M., Karjalainen, J., 1992. Q T intervals at Heart rates From 50 to 120 Beats per Minute During 24 Hour Electrocardiographic Recordings in 100 Healthy Men Effects of Atenolol. American Heart Association 86 (5), 1439-1442. https://doi.org/10.1161/01.CIR.86.5.1439von Borries, R. F., Pierluissi, J. H., Nazeran, H., Jan 2005. Wavelet transformbased ecg baseline drift removal for body surface potential mapping. In: 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference. pp. 3891-3894. https://doi.org/10.1109/IEMBS.2005.1615311V.Oppenheim, A., Willsky, A. S., Nawab, S. H., 1998. Signals and systems. Prentice Hall Internationa,Inc, Massachusettes Intitue Technology with Boston Univeristy.Xia, D., Meng, Q., Chen, Y., Zhang, Z., 2014. 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Migración internacional, territorios y sujetos migrantes del Estado de México (pdf)

Compilación sobre migración mexiquense a los Estado Unidos, origen rural y urbano, genero, complejidad del proceso y condiciones laborales.La migración internacional se ha incrementado en términos absolutos, esto quizá no resulta sorprendente, sin embargo, llama la atención que las migraciones modernas aumentaran en climas sociales tan hostiles. Hasta la Primera Guerra Mundial las inmigraciones masivas ocurrieron “sin restricciones” (visas, cuotas o barreras de seguridad); después de la Segunda Guerra Mundial esto cambió y, donde antes predominaban las acciones de reclutamiento y bienvenida a los recién llegados, ahora reinan el control y la restricción. En la actualidad, los países receptores mantienen posturas restrictivas y selectivas de la fuerza de trabajo que conviene “dejar” entrar a su territorio. Hay una generalización de políticas de control de flujos, restricciones sistemáticas a entradas y permanencias, de hecho para muchos gobiernos, este control se erige como preocupación preeminente.UAE