Recurso. Modelo de crecimiento de árbol individual para plantaciones de pino radiata en el noroeste de España

Individual-tree basal area and height increment models were developed with data from 130 permanent plots of Pinus radiata D. Don located in Galicia (northwestern Spain). Mixed-models techniques were used for model fitting. Covariates acting at tree and stand level were included as fixed effects. Estimated values of stand variables obtained from aggregation of individual-tree predictions were used in model evaluation. The developed models accounted for 54% of the variability in basal area increment and 36% of the variability in height increment, with mean errors of 16 cm2 and 0.36 m, respectively. These models, along with an existing individual-tree mortality model, constitute a whole individual-tree growth model that can be used to simulate forest management alternatives, helping in forest managers’ decision making.En este estudio se han desarrollado modelos de incremento en sección normal y altura de árbol individual, utilizando datos de 130 parcelas de Pinus radiata D. Don localizadas en Galicia. La técnica de modelos mixtos se utilizó en el ajuste de los modelos. Se incluyeron covariables que actúan a nivel de árbol y a nivel de rodal como efectos fijos en los modelos. En la evaluación de los modelos se utilizaron estimaciones de variables de rodal obtenidas por agregación de las predicciones de árbol individual. Los modelos desarrollados explicaron el 54% de la variabilidad en el incremento en sección normal y el 36% de la variabilidad en el incremento en altura, con errores medios de 16 cm2 y 0.36 m, respectivamente. Estos modelos, junto al modelo de mortalidad de árbol individual existente, forman un modelo de crecimiento de árbol individual que puede utilizarse para simular alternativas de gestión forestal, ayudando a la toma de decisiones de los gestores forestales

Engineering Anisotropic Meniscus: Zonal Functionality and Spatiotemporal Drug Delivery

This document is the preprint manuscript version of a published work that appeared in final form in Tissue Engineering Part B: Reviews, Copyright 2020, Mary Ann Liebert, Inc., publishers after peer review and technical editing by the publisher. To access the final edited and published work see: https://doi.org/10.1089/ten.teb.2020.0096Human meniscus is a fibrocartilaginous structure that is crucial for an adequate performance of the human knee joint. Degeneration of the meniscus is often followed by partial or total meniscectomy, which enhances the risk of developing knee osteoarthritis. The lack of a satisfactory treatment for this condition has triggered a major interest in drug delivery (DD) and tissue engineering (TE) strategies intended to restore a bioactive and fully functional meniscal tissue. The aim of this review is to critically discuss the most relevant studies on spatiotemporal DD and TE, aiming for a multizonal meniscal reconstruction. Indeed, the development of meniscal tissue implants should involve a provision for adequate active molecules and scaffold features that take into account the anisotropic ultrastructure of human meniscus. This zonal differentiation is reflected in the meniscus biochemical composition, collagen fiber arrangement, and cell distribution. In this sense, it is expected that a proper combination of advanced DD and zonal TE strategies will play a key role in the future trends in meniscus regenerationThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 814444 (MEFISTO); and from Xunta de Galicia’s Grupos de referencia competitiva (grant number ED431C 2017/09

A generalized nonlinear mixed-effects height-diameter model for Eucalyptus globulus L. in northwestern Spain

A generalized height–diameter model was developed for Eucalyptus globulus Labill. stands in Galicia (northwestern Spain). The study involved a variety of pure stands ranging from even-aged to unevenaged. Data were obtained from permanent circular sample plots in which trees were sampled within different radii according to their diameter at breast height. A combination ofweighted regression, to take into account the unequal selection probabilities of such an inventory design, and mixed model techniques, to accommodate local random fluctuations in the height–diameter relationship, were applied to estimate fixed and random parameters for several models reported in the relevant literature. The models that provided the best results included dominant height and dominant diameter as fixed effects. These models explained more than 83% of the observed variability, with mean errors of less than 2.5 m. Random parameters for particular plots were estimated with different tree selection options. Height–diameter relationships tailored to individual plots can be obtained by calibration of the height measurements of the three smallest trees in a plot. An independent dataset was used to test the performance of themodel with data not used in the fitting process, and to demonstrate the advantages of calibrating the mixed-effects model

Microwave-assisted synthesis of 3-arylcoumarins

The 12th International Electronic Conference on Synthetic Organic Chemistry session Symposium on Microwave Assisted Synthesis3-arylcoumarins are prepared in good yields by microwave assisted solvent-free condensation of phenylacetic acids and phenylacetic esters, using potassium tert-butoxide as base.We acknowledge XUNTA DE GALICIA for financial support: PGIDIT05PXIB26201PR, PR405 A098/59-0. USC for a predoctoral fellowship to J. C.-C. This work was undertaken as part of the EC sponsored programs D32 COST Program (Chemistry in High-Energy Microenvironments, WG10)

Microwave assisted synthesis of tripodal triazines from 1,3,5-tris(2- hydroxyethyl)-1,3,5-triazinane-2,4,6-trione and fatty acids

The 13th International Electronic Conference on Synthetic Organic Chemistry session Symposium on Microwave Assisted SynthesisA new fast and direct synthesis for tripodal fatty acid esters of tris-hydroxyethyl isocyanurate 1 under microwave irradiation is developed. The method is valid for saturated and unsaturated acids, but the last produced a mixture of esters cis and transXUNTA DE GALICIA for financial support: PGIDIT05PXIB26201PR and USC for a predoctoral fellowship to JC

Microwave assisted synthesis of 1,3,5-tris(2-hydroxyethyl)isocyanurate carbamates with C3 symmetry

The 14th International Electronic Conference on Synthetic Organic Chemistry session Microwave Assisted SynthesisMicrowave assisted synthesis of 1,3,5-tris(2-hydroxyethyl)isocyanurate carbamates under solventless conditions in short times and good yields is describedXUNTA DE GALICIA for financial support: INCITE09 262346P