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Copyright of Revista Argentina de Cardiología is the property of Sociedad Argentina de Cardiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Education Policy Analysis Archives / Archivos Analíticos de Políticas Educativas / Arquivos Analíticos de Políticas Educativas is the property of Educational Policy Analysis Archives & Education Review and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study aimed at verifying the association of message length and delay in university online discussions with academic achievement and students' influence on their classmates. Forums in Moodle were designed, and asynchronous online discussions with first-year undergraduate students of Educational Sciences were conducted. We gained word count from the learning management system, the weekly delay in posting a message to the forum was regarded, and we assumed the students' grades to know their academic success. To obtain an indicator of influence, we conducted a social network analysis from the interactions that emerged from the online discussions. Then, we calculated the eigenvector centrality of each student once the debate had been completed. Results showed a low monotonic association between grades and the message words or the delay in posting. There was a slight trend to achieve more eigenvector centrality since students took more time to send a message and when messages were more synthetic. However, we did not obtain values in the coefficients that would allow us to infer a relevant association. The level of correlation detected for the grades was significant and, above all, regarding eigenvector centrality. We discussed the limitations of this study, the need for more research, and the implications for educational practice. El objetivo de este estudio fue comprobar la relación de la extensión y la demora de los mensajes en discusiones en línea con la influencia entre estudiantes y el rendimiento académico en la universidad. Se diseñaron foros en Moodle y se llevaron a cabo discusiones asíncronas en línea con estudiantes de primer año de Ciencias de la Educación. Obtuvimos el recuento de palabras desde el sistema de gestión del aprendizaje, consideramos el retraso semanal para publicar mensajes en el foro y tomamos las calificaciones de los estudiantes para conocer su éxito académico. Para obtener un indicador de influencia, llevamos a cabo un análisis de redes sociales a partir de las interacciones en los debates. Después calculamos la centralidad de vector propio para cada estudiante, una vez finalizado el debate. Los resultados mostraron una correlación monotónica baja entre las notas y la extensión de los mensajes o el retraso en publicarlos. Hubo una ligera tendencia a conseguir más centralidad de vector propio a medida que se tardaba más en enviar un mensaje y cuando los mensajes eran más sintéticos. Sin embargo, no hubo valores en los coeficientes que permitieran inferir una asociación sustantiva. El nivel de correlación detectado para las calificaciones fue significativo, sobre todo para la centralidad del vector propio. Discutimos las limitaciones del estudio, la necesidad de más investigación y las implicaciones para la práctica educativa. [ABSTRACT FROM AUTHOR]

Copyright of Ciencias Psicológicas is the property of Universidad Catolica del Uruguay Damaso Antonio Larranaga and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Journal of Educational Research, Assessment & Evaluation / Revista Electrónica de Investigación y Evaluación Educativa is the property of RELIEVE - Revista Electonica de Investigacion y Evaluacion Educativa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Wind generated waves are a very random phenomenon and it is one of the main environmental disturbances that affect the operation of Autonomous Underwater Vehicles (AUV) navigating in shallow waters and coastal zones. In order to attenuate the undesirable effect of the ocean waves on the control system of AUVs, the measurements from the sensors need to be filtered out, using the estimated wave encounter frequency. Developing an estimator capable of providing the encounter frequency in real time using the Algebraic Identification method, is fully reported in this paper. In the design of the proposed algebraic estimator, a linear differential equation to represent the waves spectrum is used, which simplifies the mathematical procedure. The simulations carried out with simulated data and with real data from an experiment at sea, show the excellent results of the estimator in terms of precision in the final value and estimation time. In addition, its show the use of the wave encounter frequency estimation to adjust the filtering techniques previously implemented for the vehicle in a proper way, which results in a reduction of vibrations and energy consumption of the vehicle's rudder system. [ABSTRACT FROM AUTHOR]

Copyright of Educación XX1 is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Estudios del Hábitat is the property of Universidad Nacional de La Plata and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Complutense de Educación is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Citizen participation is a key to develop democratic societies which guarantee education for all. In this sense, the Third Sector for social and educational action is an essential scenario. However, there are operational problems arising from the application of external evaluations on service excellence and quality. These problems are analysed to define the current state of the Third Sector and its educational implications, offering solutions and guidance for practice. Distribution of responsibilities for welfare, influence of external evaluation on the Third Sector, lack of citizen ability to participate in it, and challenges and functions of education within this framework are addressed. The results of the analysis highlight protecting the original meaning of the Third Sector, decentralising the influence of external evaluations and taking advantage of recent pedagogical trends. In addition, the conclusion points to the need for an alliance between formal education and the Third Sector to train empathic and morally autonomous citizens. [ABSTRACT FROM AUTHOR]

El Día Mundial del Riñón 2016 se enfoca en las enfermedades renales durante la infancia y en los antecedentes de la enfermedad renal del adulto que puede iniciar en la edad temprana. La Enfermedad Renal Crónica (ERC) en la infancia difiere de la de los adultos en que predominan las causas derivadas de anomalías congénitas y trastornos hereditarios, siendo poco frecuentes las glomerulopatías y la enfermedad renal asociada a diabetes. Adicionalmente, muchos niños con Injuria Renal Aguda pueden eventualmente desarrollar secuelas que lleven a hipertensión y ERC durante la adolescencia o la vida adulta. Los niños nacidos prematuros o pequeños para la edad gestacional tienen un incremento del riesgo para desarrollar ERC durante su vida. Personas con alto riesgo al nacer o en la primera infancia, deberán ser monitorizados estrechamente para ayudar a detectar a tiempo signos tempranos de enfermedad renal a fin de proporcionar una prevención o tratamiento efectivos. Una terapia exitosa es factible para niños con ERC avanzada; existe evidencia que demuestra que los niños evolucionan mejor que los adultos cuando reciben terapia de reemplazo renal, incluyendo diálisis y trasplante, aunque solo una minoría de los niños puede requerir este tratamiento. Debido a las inequidades en el acceso a la atención médica, es necesario hacer un esfuerzo para que los niños con enfermedad renal, donde sea que vivan, puedan ser tratados de manera eficaz, independientemente de su ubicación geográfica y situación y económica. Nuestra esperanza es que el Día Mundial del Riñón pueda informar al público en general, a los tomadores de decisiones y a los profesionales de la salud, sobre las necesidades y las posibilidades que existen alrededor de la enfermedad renal en la infancia. [ABSTRACT FROM AUTHOR]

Copyright of Revista Española de Cirugía Oral y Maxilofacial is the property of Sociedad Espanola de Cirugia Oral y Maxilofacial (SECOM) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Researches related Autonomous Underwater Vehicles (AUVs) have boomed in recent years mainly due to the development of sensors and computers technologies. In Cuba the Group of Automation, Robotics and Perception and the Hydrographic Research Center have been working on the development of an AUV based on low-cost hardware architecture. In this paper the design of a navigation system based on a passive observer is shown. The algorithm consists of a nonlinear model of the vehicle in combination with linear approximations of ocean waves and currents. The tuning procedure is relatively easy and the observer obtained is feasible to implement in real time. The simulations performed using MatLab/Simulink show good results in terms of disturbances rejection and estimation of navigation parameters needed like velocities and positions. [ABSTRACT FROM AUTHOR]

Copyright of Revista Acadêmica: Ciência Animal is the property of Revista Academica: Ciencia Animal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective. This work has aimed to validate the Spanish version of the PHQ-15 questionnaire (Patient Health Questionnaire) for its use in patients with depression and/or and anxiety disorders. Material and methods. An observational, crosssectional study in which the PHQ-15 questionnaire (made up of 15 Ítems on somatic symptoms) was administered in the outpatient psychiatric clinics to patients of 18 years or more, diagnosed of depression and/or anxiety disorder according to the DSM-IV criteria. Feasibility (percent of patients without response), reliability (in terms of internal consistency) and convergent/divergent validity compared to the MADRS scale (by correlational analysis), discriminant (with intra-group comparison) and predictive (by logistical regression). Results. A total of 3362 evaluated patients were included. Of these, 65.5% were women, with a mean age of 45.6 years (18.0-90.0). The questionnaire was feasible (9.6% of patients lacking an answer to some Ítem), and showed acceptable internal reliability (Cronbach's Alpha Coefficient =0.78) with adequate validity, with correlations with the MADRS scale between moderate and high (r=0.3-0.7) and differences between groups of patients. The factors associated to the profile type of the patient with relevant physical symptoms were: being a woman, having a background of depression and/or anxiety, anxiety according to the DSM-IV, any concomitant condition in general, and specifically hepatic-digestive and osteoarticular system affectation and, as protective factor, being 70 years of age or older. Conclusion. The PHQ-15 questionnaire in its Spanish version has been shown to be feasible, reliable and valid to evaluate somatic symptoms in patients with depression and/or anxiety disorders in psychiatry. [ABSTRACT FROM AUTHOR]