ESTRUCTURA Y PRINCIPIOS DE MOLIENDA EN CEREALES

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Assessing the assignation of public subsidies: Do the experts choose the most efficient R&D projects?

The implementation of public programs to support business R&D projects requires the establishment of a selection process. This selection process faces various difficulties, which include the measurement of the impact of the R&D projects as well as selection process optimization among projects with multiple, and sometimes incomparable, performance indicators. To this end, public agencies generally use the peer review method,which, while presenting some advantages, also demonstrates significant drawbacks. Private firms, on the other hand, tend toward more quantitative methods, such as Data Envelopment Analysis (DEA), in their pursuit of R&D investment optimization. In this paper, the performance of a public agency peer review method of project selection is compared with an alternative DEA method.peer review, dea, subsidies, r&d

Management of Astrocaryum standleyanum (Arecaceae) for Handicraft Production in Colombia

We studied use and management of Astrocaryum standleyanum among the Wounaan people at the Pacific Coast of Colombia between 2009 and 2011, with the intention of generating recommendations for a sustainable management of the palm. We used ethnobotanical techniques and established plots to monitor palm populations. A. standleyanum grows in forest and cultivated fields near the Wounaan villages, where leaves are harvested non-destructively by using a medialuna mounted on a pole. Fiber is then extracted from the epidermis and mesophyll of the leaflets, processed, dyed, and used to produce baskets woven with the coiled technique. The handicrafts are marketed through middlemen or in handicraft fairs, and they are the major source of cash income for the Wounaan. As a result of the now abandoned malpractice of cutting down palms to obtain the fiber, there is a low number of adult palms, but the population structure shows signs of recovery. Integration of traditional practices with non-destructive harvest techniques suggests that in this region it is possible to conserve both the palm and the artisanal activity, which represents a major line for the socioeconomic development for the Wounaan

Manufacturing and Characterization of Composite Fibreboards with Posidonia oceanica Wastes with an Environmentally-Friendly Binder from Epoxy Resin

[EN] Highly environmentally-friendly fibreboards were manufactured by hot-press moulding using Posidonia ocaeanica wastes and a partially biobased epoxy resin as binder. Fibreboards with a constant fibre content of 70 wt % were successfully manufactured by thermo-compression. The effects of a conventional alkali treatment were compared to the synergistic effects that additional silanization with two silanes (amino and glycidyl) can exert on the mechanical and thermo-mechanical properties of fibreboards. The results revealed a remarkable improvement of the mechanical properties with the combination of the alkali treatment followed by the silanization. Scanning electron microscopy also revealed increased resin-fibre interactions due to the synergistic effect of both amino- and glycidyl-silanes. These fibreboards represent a formaldehyde-free solution and can positively contribute to sustainable development as the lignocellulosic component is a waste and the binder resin is partially biobased.This work was supported by the Ministry of Economy and Competitiveness-MINECO [MAT2014-59242-C2-1-R]. D. Garcia-Garcia wants to thank the Spanish Ministry of Education, Culture and Sports for the financial support through a FPU grant number FPU13/06011. L. Quiles-Carrillo acknowledges Generalitat Valenciana-GV for financial support through a FPI grant (ACIF/2016/182) and the Spanish Ministry of Education, Culture, and Sports (MECD) for his FPU grant (FPU15/03812).Garcia-Garcia, D.; Quiles-Carrillo, L.; Montanes, N.; Fombuena, V.; Balart, R. (2018). Manufacturing and Characterization of Composite Fibreboards with Posidonia oceanica Wastes with an Environmentally-Friendly Binder from Epoxy Resin. Materials. 11(1). https://doi.org/10.3390/ma11010035S3511

CAÑA DE AZÚCAR: GENERALIDADES Y FACTORES AGROMETEOROLÓGICOS

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DIAPORAMA CARACTERISTICAS FISICAS DE GRANOS BASICOS

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DIAPORAMA PRINCIPALES METODOS DE ALMACENAMIENTO Y CONSERVACION

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INDUSTRIALIZACIÓN DE LOS CEREALES: PRODUCTOS TERMINADOS

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Importancia del almacenamiento y conservación de granos y semillas

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