Reserva Natural Ramsar de El Rincón y laguna de Santiago (Moriles, Córdoba): génesis y funcionamiento desde una perspectiva geomorfológica

Se lleva a cabo un análisis de los factores geomorfológicos que condicionan la génesis y el funcionamiento de la actual Reserva Natural Ramsar de El Rincón, así como de la cercana laguna de Santiago (Moriles, Córdoba, Spain).An analysis about geomorfological factors conditions of genesis and current hidrological function of El Rincón Ramsar Natural Reserve and closed Santiago smalllake (Moriles, Córdoba, Spain) is carried out

Laguna o Lago de Zóñar (Aguilar de la Frontera, Córdoba): consideraciones sobre su génesis reciente

Se lleva a cabo un análisis de los factores ecológicos que participan en la génesis, evolución y estado actual de la Reserva Natural de Zóriar (Aguilar de la Frontera, Córdoba).An analysis about ecological factors participant in the genesis, evolution and current situation of Zóriar Natural Reserve (Aguilar de la Frontera, Córdoba), is carried out

Un nuevo modelo evolutivo de funcionamiento para la Reserva Natural Ramsar de laguna Amarga y laguna Dulce (Jauja, Lucena, Córdoba)

Se lleva a cabo un análisis de las implicaciones geomorfológicas y ecológicas que interactúan y definen las actuales lagunas Amarga y Dulce (Córdoba, España).An analysis about the geomorfological and ecological implications in Amarga y Dulce small-lakes is carried out

Paradigmas en la Educación Matemática para el siglo XXI: Compartiendo experiencias educativas con Asia

Con este nombre se ha celebrado en Valencia, durante los días 22 a 24 de octubre de 2009, un Simposio, organizado por Casa Asia y el CSIC (vía el Instituto de Ciencias Matemáticas, ICMAT) y patrocinado por el Ayuntamiento de Valencia, i-MATH y la Fundación Asia-Europa, cuyo objetivo ha sido conocer, compartir y comparar experiencias sobre la educación matemática en España y Asia

Development of a prototype for submarine communications in shallow waters

The Telecommunications Marine Laboratory (TML) of the University of Cádiz takes part in a research project to study the intertidal sediments of the Bay of Cádiz. The collection of samples from the seabed and the transmission of data to the surface are performed by a Mini Profiler with four channels (MP4), which is supplied by UNISENSE. Each channel processes the samples collected by a single sensor. For power, control, and data transmission, a special wiring that connects the submerged subsystem with the surface subsystem is used. The tension transmitted by the cable to the MP4 structure makes its handling and positioning under water more difficult. This article explains the technological solution developed by the TML to replace some wiring from the MP4. For the prototype, two underwater acoustic modems have been used and an electronic system has been developed based on the Arduino platform, in order to multiplex, digitize, and transmit the data collected by the MP4 sensors, eliminating the need to use wiring. The submerged subsystem has an autonomous power supply by a battery.Peer Reviewe

Territorial incidence of Andalusian Government budget. An exercise of provincial fiscal balance

El trabajo realiza una estimación de la balanza fiscal de la Junta de andalucía para el año 2001 con las provincias andaluzas. Para ello se ha desarrollado una metodología heredera de la ya dilatada tradición de cálculos de balanzas fiscales del Estado con las comunidades autónomas que incluye una pormenorizada descripción de las hipótesis de incidencia de ingresos y gastos que sigue las líneas generales usuales a este tipo de trabajos. En este trabajo se incluyen algunas novedades metodológicas como son la inclusión del análisis del sector público empresarial, un tratamiento novedoso de las transferencias recibidas por la administración Pública andaluza y un análisis de los resultados obtenidos en los cálculos.This paper performs an estimation of the “Junta de andalucía” fiscal flow with the andalusian provinces in 2001. In order to do that, we have developed a methodology that agrees with the fiscal flows’ usual estimations of the state with the autonomous communities. This methodology contains a detailed description of the incidence assumptions of receipts and expenditures that follows the habitual tradition. our paper also incorporates some methodological changes like the incorporation of the state-owned companies, a new treatment state grants to the “Junta de andalucía” and an analysis of the obtained outcome in the calculatio

Geoarchaeological analysis of the abandonment stage of the Valdepuentes aqueduct, in a sector of its last section (Cordoba, Spain)

Se analiza un perfil geoarqueológico representativo de la etapa de abandono del acueducto de Valdepuentes en su tramo inferior (entorno de Cantarranas). Se ha diferenciado una primera fase representada por la formación de una costra carbonatada tipo laminita sellando el fondo del specus; dicha unidad se formó bajo condiciones de flujo hídrico y en relación con la interrupción de las labores de limpieza y mantenimiento del canal. Una segunda fase, caracterizada por tres unidades sedimentarias superpuestas que obliteraron el canal, se corresponde con la entrada masiva de material en relación con el colapso de la estructura de la obra (bóveda y paredes). La datación por C14 de dos muestras de carbones localizados en sendas unidades superiores da cronologías dentro del siglo X (997 AD ± 25 y 933 AD ± 43).This paper deals with the giving up and filling period of the final section of Valdepuentes roman aqueduct. We found evidences related to two phases. Firstly, a carbonated crust on the channel bottom was precipitated; it points out water was flowing after maintenance works was abandoned Later, as we can analyze in three sedimentary units, final specus filled up happened. Radiocarbon dating of two charcoals located inside of the upper channel sediments shows chronologies belonging to tenth century (997 AD ± 25 y 933 AD ± 43)

Relationship between intima-media thickness of the common carotid artery and arterial stiffness in subjects with and without type 2 diabetes: a case-series report

Background: We examined the relationship between the intima-media thickness of the common carotid artery (CCA-IMT) and arterial stiffness, assessed by pulse wave velocity (PWV), the ambulatory arterial stiffness index (AASI) and the augmentation index (AIx) in subjects with and without type 2 diabetes. Methods: A case-series study was made in 366 patients (105 diabetics and 261-non-diabetics). Ambulatory blood pressure monitoring was performed on a day of standard activity with the SpaceLabs 90207 system. AASI was calculated as "1-slope" from the within-person regression of diastolic-on-systolic ambulatory blood pressure readings. PWV and AIx were measured with the SphygmoCor system, and a Sonosite Micromax ultrasound unit was used for automatic measurements of CCA-IMT. Results: PWV, AASI and CCA-IMT were found to be greater in diabetic patients, while no differences in AIx were observed between the two groups. CCA-IMT was independently correlated to the three measures of arterial stiffness in both groups. We found an increase in CCA-IMT of 0.40, 0.24 and 0.36 mm in diabetics, and of 0.48, 0.17 and 0.55 mm in non-diabetics for each unit increase in AASI, AIx and PWV. The variability of CCA-IMT was explained mainly by AASI, AIx and gender in diabetic patients, and by age, gender, AASI and PWV in non-diabetic patients. Conclusions: CCA-IMT showed a positive correlation to PWV, AASI and AIx in subjects with and without type 2 diabetes. However, when adjusting for age, gender and heart rate, the association to PWV was lost in diabetic patients, in the same way as the association to Alx in non-diabetic patients. The present study demonstrates that the three measures taken to assess arterial stiffness in clinical practice are not interchangeable, nor do they behave equally in all subjects