92 research outputs found
Sydowia polyspora dominates fungal communities carried by two Tomicus species in pine plantations threatened by Fusarium circinatum
ProducciĂłn CientĂficaBark beetles (Coleoptera, Scolytinae) carry a diverse filamentous fungal community
sometimes acting as vectors or carriers of phytopathogens. In this study, mycobiota carried by two
Tomicus species (Tomicus piniperda and Tomicus destruens) were investigated through (i) morphological
and molecular identification of taxa; (ii) taxonomic richness, diversity, evenness, dominance
and phoresy indices; (iii) ecological network analysis and (iv) statistical co-occurrence analysis.
The studied mycobiota were formed by eleven taxa and showed a moderate fungal diversity with low
evenness. The fungus Sydowia polyspora was significantly abundant and dominated the community.
All the fungal taxa were randomly associated. Both insect species (T. piniperda and T. destruens) were
collected from plantations of Pinus radiata infected by Fusarium circinatum. The ecological factors that
could drive community ecology and phoretic links between fungi and bark beetles are discussed.Ministerio de EconomĂa, Industria y Competitividad - Fondo Europeo de Desarrollo Regional (project AGL2015-69370-R)Ministerio de EconomĂa, Industria y Competitividad (project AGL2012-39912)Junta de Castilla y LeĂłn - Fondo Europeo de Desarrollo Regional (grant ORDEN EDU/1083/2013
Diseño de una aplicación docente para el control del equipamiento del laboratorio: PC-LAB.
En la actual formación universitaria, se reflexiona sobre los métodos usados en la enseñanza, así como en el tiempo empleado por los alumnos en asimilar los conocimientos ligados a cada materia. Ambos aspectos, se reflejan en la elaboración de la guía particular de cada asignatura. Esta visión hace que el método de enseñanza tradicional de las materias, utilizando clases magistrales, sólo es una parte en la cadena del aprendizaje. Con el ánimo de contribuir a esa nueva perspectiva, se ha creado el trabajo que a continuación se presenta. Un instrumento virtual, desarrollado con el software LabVIEW® (Laboratory Virtual Engineering workbench), que permite la conexión entre el ordenador y el puesto del laboratorio. Con esta aplicación, se quiere favorecer el grado de implicación por parte del alumno en el proceso de enseñanza – aprendizaje y proporcionar herramientas con las que los alumnos puedan construir su conocimiento
Alpine kink bands on foliated rocks of the Central System variscan basement
La asociación espacial y cinemática entre kink bands en rocas con foliación varisca y cabalgamientos alpinos en el basamento del Sistema Central, permiten deducir que los primeros tienen una edad cenozoica, y no varisca o tardivarisca. Sistemáticamente, la dirección de los ejes de los kinks es subparalela a los cabalgamientos. Se estudian tres afloramientos clave: El Cabalgamiento de Villares de Jadraque, el Cabalgamiento de Valdesotos y el Retrocabalgamiento de El Atazar.The spatial and kinematic association between kink bands in
rocks with variscan foliation and alpine thrusts in the Central System basement, allow us to deduce that the former have a Cenozoic age, and not variscan or late-variscan. Systematically, the fold axes trend of the kinks is sub-parallel to the strike of the thrusts. Three key outcrops are studied: the Villares de Jadraque thrust, the Valdesotos
thrust and the El Atazar back-thrust.Depto. de Geodinámica, EstratigrafĂa y PaleontologĂaFac. de Ciencias GeolĂłgicasTRUEpu
Variscan inheritance induces Alpine upper crustal delamination in East Spanish–Portuguese Central System
The Spanish–Portuguese Central System (SPCS) is an Alpine Mountain range with crystalline basement characterised by a two-layer rheological structure. This structure formed after primary (protolith) and secondary (tectonometamorphic) processes during the extensional collapse of the Variscan Orogen. The SPCS structure is usually controlled by foreland-directed thrusts and strike-slip faults. However, the eastern SPCS is dominated by NW-directed, imbricate backthrusts and lacks the main thrust directed to the foreland basin located southeast of the mountain range (Madrid Cenozoic Basin). The SPCS exhibits a crustal root (> 40 km depth) supporting SE-directed crustal-scale thrusting. Alpine backthrusts sole into an SE-dipping décollement within the Variscan basement. Variscan extension-related structures parallel the SE-dipping geometry of Alpine backthrusts, so they provided favourably oriented rheological weaknesses to accommodate Alpine shortening. Backthrusts geometry, their hanging wall position within the fault that raised the SPCS and gravity modelling support an Alpine crustal delamination process. Tectonic wedging and delamination of the more competent basement occurred in the footwall of Variscan extensional faults (Daurius domain), which enforced the shearing off of a rheologically weaker upper layer of the crust, located in the hanging wall of the Variscan extensional faults (Arriaca domain) by inverting Variscan extensional faults. This led to NW-directed incipient continental subduction of the weaker crust. Intraplate subduction and crustal delamination can be independent from lithosphere-scale inheritance and be conditioned by structural inheritance in the overlying crust. Alpine shortening for the Cretaceous cover is around 17.7 km (10.5% shortening), and 11 km (7%) for the upper-lower crust limit
Alpine kink bands on foliated rocks of the Central System variscan basement
La asociación espacial y cinemática entre kink bands en rocas con
foliación varisca y cabalgamientos alpinos en el basamento del Sistema Central, permiten deducir que los primeros tienen una edad cenozoica, y no varisca o tardivarisca. Sistemáticamente, la dirección de
los ejes de los kinks es subparalela a los cabalgamientos. Se estudian
tres afloramientos clave: El Cabalgamiento de Villares de Jadraque, el
Cabalgamiento de Valdesotos y el Retrocabalgamiento de El AtazarThe spatial and kinematic association between kink bands in
rocks with variscan foliation and alpine thrusts in the Central System basement, allow us to deduce that the former have a Cenozoic
age, and not variscan or late-variscan. Systematically, the fold axes
trend of the kinks is sub-parallel to the strike of the thrusts. Three key
outcrops are studied: the Villares de Jadraque thrust, the Valdesotos
thrust and the El Atazar back-thrus
Orogenic reworking and reactivation in Central Iberia: A record of Variscan, Permian and Alpine tectonics
Interference between orogenic systems and deformation phases within them may lead to reworking and reactivation of previous structures. The eastern sector of the Spanish-Portuguese Central System holds evidence of two orogenic systems, Variscan and Alpine, plus a stage of Permian extension. We perform an integrated structural analysis to identify reworking and reactivation processes throughout the geological record. The Variscan record starts with crustal thickening (D1; E-verging overturned folds). A second phase features the intra-orogenic collapse of an overthickened crust (D2; top-to-the-SE ductile extensional shear zone), which produced intense structural reworking at the core of the shear zone and moderate reworking at its hanging wall. During subsequent strike-slip tectonics, crustal thickening parted transpressional deformation into a dextral shear zone and upright folds (D3). Variscan deformation did not reactivate previous structures, but exploited a weak rheological boundary defined by contrasted lithologies (sedimentary versus igneous rocks) to accommodate D2 shearing. Reactivation played a role afterwards: Variscan strike-slip shear zone acted as a transfer fault to accommodate Permian extension (post-orogenic collapse), and then Alpine contraction. The Permian extension record is blurred by Alpine inversion, although the trend of Alpine structures in Central Iberia, and the Spanish-Portuguese Central System, may result from Permian structural inheritance
MetodologĂas colaborativas en el proceso de enseñanza-apredizaje de la historia contemporánea
Memoria ID-315. Ayudas de la Universidad de Salamanca para la innovaciĂłn docente, curso 2013-2014
Impact of Remote Monitoring on Standardized Outcomes in Nephrology-Peritoneal Dialysis
Introduction: This study aimed to evaluate the association between the use of remote patient monitoring (RPM) in patients on automated peritoneal dialysis (APD) and the Standardized Outcomes in Nephrology in peritoneal dialysis (SONG-PD) clinical outcomes. Methods: A prospective and multicenter cohort study was conducted on patients with advanced chronic kidney disease on APD, recruited at 16 Spanish Hospitals, between June 1 and December 31, 2021. Patients were divided into 2 cohorts, namely patients on APD with RPM (APD-RPM) and patients on APD without RPM. The primary endpoints were the standardized outcomes of the SONG-PD clinical outcomes: PD-associated infection, cardiovascular disease (CVD), mortality rate, technique survival, and life participation (assessed as health-related quality of life [QoL]). Propensity score matching (PSM) was used to evaluate the association of RPM exposure with the clinical outcomes. Results: A total of 232 patients were included, 176 (75.9%) in the APD-RPM group and 56 (24.1%) in the APD-without-RPM group. The mean patient follow-up time was significantly longer in the APD-RPM group than in the APD-without-RPM group (10.4 ± 2.8 vs. 9.4 ± 3.1 months, respectively; P = 0.02). In the overall study sample, the APD-RPM group was associated with a lower mortality rate (hazard ratio [HR]: 0.08; 95% confidence interval [CI]: 0.01 to 0.69; P = 0.020) and greater technique survival rate (HR: 0.25; 95% CI: 0.11 to 0.59; P = 0.001). After PSM, APD-RPM continued to be associated with better technique survival (HR: 0.23; 95% CI: 0.06 to 0.83; P = 0.024). Conclusion: The use of RPM programs in patients on APD was associated with better survival of the technique and lower mortality rates. However, after PSM, only technique survival was significant
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