Results 31 to 40 of about 2,383,660 (342)

CO2‐to‐Cyclic Carbonate Transformation at Ambient Pressure Using a Mechanochemically Prepared Ti(III) Catalyst

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
A Ti(III) complex synthesized mechanochemically catalyzes the cycloaddition of CO2 (1 bar) with terminal, internal, and trisubstituted epoxides. Mechanistic studies by density functional theory calculations reveal that the superior activity of Ti(III) compared to Ti(IV) arises from its lower oxophilicity, facilitating CO2 insertion into Ti–O bonds, as ...
Elena Álvarez‐Ruiz   +5 more
wiley   +1 more source

Laci(ni)murga: ¿originalidad o duplicidad toponímica? = Laci(ni)murga: Originality or Duplicity of Toponyms?

open access: yesEspacio, Tiempo y Forma. Serie II, Historia Antigua, 2018
La importancia de ubicar correctamente Laci(ni)murga afecta a otros aspectos de importancia para el entendimiento de la geografía peninsular romana como la administración del territorio y la jurisdicción provincial.
Sergio España-Chamorro
doaj   +1 more source

La voz de los creadores: entrevista a Daniel Remón

open access: yesTrasvases Entre la Literatura y el Cine, 2022
Entrevista a Daniel Remón sobre el proceso creativo en la literatura y el cine, y las adaptaciones Intemperie (Benito Zambrano, 2019) y El doble (Rodrigo Sorogoyen, 2021).
Manuel España Arjona
doaj   +1 more source

Madurez de sistemas de identificadores persistentes: oportunidades en el contexto español

open access: yesAnuario ThinkEPI, 2022
Los identificadores persistentes (PID) bien establecidos constituyen una base de confianza para la ciencia abierta. Ayudan a garantizar que las entidades a las que se refieren sean descubribles, accesibles, evaluables, inteligibles, utilizables e interoperables.
openaire   +1 more source

Flight of the Future: An Experimental Analysis of Event‐Based Vision for Online Perception Onboard Flapping‐Wing Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
A thorough analysis of event‐based vision for flapping‐wing robots is presented, with emphasis on hardware integration, suitability under challenging flight conditions, and real‐time performance. Theoretical and experimental studies demonstrate how these sensors enable robust and efficient onboard perception for ornithopters, thereby advancing autonomy
Raul Tapia   +5 more
wiley   +1 more source

Challenges for the protection of unaccompanied foreign minors in the streets of Ceuta [PDF]

open access: yes, 2019
Ceuta, as a Spanish enclave in Africa face specific challenges in terms of immigration. Due the proximity of Ceuta and Morocco, the residents of Moroccan provinces adjoining are exempted from visa requirements and can be authorized to enter and exit the
Carvalho da Silva, Jacqueline   +1 more
core  

Asegúrate: an intervention program against cyberbullying based on teachers' commitment and on design of its instructional materials [PDF]

open access: yes, 2019
This article presents the impact on cyberbullying of the Asegúrate program. This educational program is based on the theory of normative social behavior, self-regulation skills,and the beliefs held by adolescents and consists in a whole package of ...
Casas Bolaños, José Antonio   +2 more
core   +2 more sources

Early stages of LDL oxidation: apolipoprotein B structural changes monitored by infrared spectroscopy. [PDF]

open access: yes, 2001
Changes in the conformation of apoliprotein B-100 in the early stages of copper-mediated low density lipoprotein oxidation have been monitored by infrared spectroscopy.
Arrondo JL   +5 more
core  

Pivotes y mecanismo de la "Masculinidad Consciente".

open access: yesPerspectivas Revista de Ciencias Sociales, 2017
El objetivo de este ensayo filosófico es realizar una presentación de lo que se considera “Masculinidad Consciente”, resaltando sus principales pivotes y mostrando de qué manera éstos pueden engranarse para construir un mecanismo relacional masculino ...
Jair España Galán
doaj   +1 more source

Solid State Polymerization on Poly(Lactic Acid)‐Based Microcapsules: Process Parameters Adjustment in Order to Design Coumarin‐6 Encapsulation System

open access: yesJournal of Applied Polymer Science, EarlyView.
This work emphasizes solid state polymerization (SSP) as a modification tool for altering the properties of PLA microcapsules (MCs). Therefore, the SSP process is optimized in order to avoid particle aggregation, and its kinetics is studied. Also, loaded MCs are subjected to SSP, resulting in changing release rate.
Konstantina Chronaki   +3 more
wiley   +1 more source

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