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Beltrán González, Freddys ; Lorenzo Esteban, Vicente ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier Ltd. | 2016-11The growing production of poly(lactic acid) (PLA) has increased the interest for the mechanical recycling of this polymer. The main objective of this work is to study the effect of different mechanical recycling processes on the hydrolytic degra[...]texto impreso
Beltrán González, Freddys ; Climent Pascual, Esteban ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier Ltd. | 2020-01Poly(lactic acid) (PLA) is one of the most important alternatives to fossil-fuel based polymers due to its biodegradability and good properties. However, the growing production along with the increasing resistance to degradation of the newer gra[...]texto impreso
Khayet Souhaimi, Mohamed ; García Villaluenga, Juan Pedro ; Valentin, J. L. ; López Manchado, Miguel Ángel ; Mengual Cabezón, Juan Ignacio ; Seoane Rodríguez, Benjamín | Elsevier Ltd. | 2005-11-14The effects of silica and silane modified silica fillers on the pervaporation properties of poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) dense membranes have been studied. Crystallinity, thermal and mechanical properties of unfilled and filled [...]texto impreso
Bischoff, James L. ; Williams, Ross W. ; Rosenbauer, Robert J. ; Aramburu Artano, Arantza ; Arsuaga, Juan Luis ; García García, Nuria ; Cuenca Bescós, Gloria | Elsevier Ltd. | 2007The Sima de los Huesos site of the Atapuerca complex near Burgos, Spain contains the skeletal remains of at least 28 individuals in a mudbreccia underlying an accumulation of the Middle Pleistocene cave bear (Ursus deningeri). We report here on [...]texto impreso
García García, Nuria ; Feranec, R.S. ; Arsuaga, Juan Luis ; Bermúdez de Castro, José María ; Carbonell i Roura, Eudald | Elsevier Ltd. | 2009Carbon and oxygen isotope values reveal resource partitioning among the large mammal fauna from three contemporaneous Middle Pleistocene hominid-bearing localities within the Sierra de Atapuerca (northern Spain). Carbon isotope values sampled fr[...]texto impreso
The Mondoñedo nappe is a crystalline thrust sheet characterized by large recumbent folds, regional intermediate-pressure metamorphism, synkinematic intrusion of granitoids during nappe emplacement, and an extensional ductile shear zone developed[...]texto impreso
Parés, Josep M. ; Arnold, Lee J. ; Duval, Mathieu ; Demuro, Martina ; Pérez-González, Alfredo ; Bermúdez de Castro, José María ; Carbonell i Roura, Eudald ; Arsuaga, Juan Luis | Elsevier Ltd. | 2013We carry out a new paleomagnetic study across stratigraphic layer TD7 of Gran Dolina Site, Atapuerca, and reassess the existing absolute ages (thermoluminescence, electron spin resonance) obtained at this site. The new and more detailed magnetos[...]texto impreso
López, Félix A. ; Cebriano Ramírez, Teresa ; García Díaz, Irene ; Fernández Sánchez, Paloma ; Rodríguez, Olga ; Lopez Fernandez, Ana | Elsevier Ltd. | 2017-04-01Two different precursors of zinc oxide were prepared via the ammoniacal ammonium carbonate leaching of the black mass obtained during the recycling of alkaline batteries. For a concentration of 0.1 mol/L of ammonium in the leaching solution, zin[...]texto impreso
Sala, Nohemi ; Pantoja Pérez, Ana ; Arsuaga, Juan Luis ; Pablos, Adrián ; Martínez, Ignacio | Elsevier Ltd. | 2016-08Fracture pattern analysis implement the taphonomic information obtained and it help understanding the largest accumulation of human remains from the Middle Pleistocene known, the Sima de los Huesos (SH) sample. The SH hominin long bones exhibit [...]texto impreso
Orden Hernández, María Ulagares de la ; Montes, J. M. ; Martínez Urreaga, Joaquín ; Bento, Artur J. ; Ribeiro, María Rosário ; Pérez Tabernero, Ernesto ; Cerrada García, María Luisa | Elsevier Ltd. | 2014-10-27Incorporation of a small content of undecenoic acid is proposed as an approach to introduce polar groups within the macromolecular architecture of high density polyethylene-based materials in order to promote an easier degradation after their us[...]texto impreso
González Sánchez, Carlos ; Martínez Aguirre, Alvar ; Pérez García, Beatriz ; Martínez Urreaga, Joaquín ; Orden Hernández, María Ulagares de la ; Fonseca Valero, Carmen | Elsevier Ltd. | 2014-11-15Crop protection residual plastic films are a growing environmental problem which requires efficient solutions. Their suitability as matrices for obtaining sustainable eco-composites reinforced with industrially-sourced residual natural fibers wa[...]
