Results 41 to 50 of about 254,615 (296)

THE EASTERN FRONTIER OF THE EUROPEAN UNION. EXPRESSION OF THE PAST / FUTURE BINOME [PDF]

open access: yesAnnals: Series on History and Archaeology (Academy of Romanian Scientists), 2015
The Study enounces first of all, the fundamental no tions of international law concerning the frontier as limit of the State territory and of the exercise of sovereignty on this space. Then, it presents the evolution of
Ion M. ANGHEL
doaj  

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Nouvelles expressivités littéraires pour L’Afrique qui vient : Alain Mabanckou et Léonora Miano

open access: yesItinéraires, 2019
This article analyses the theoretical writing of two writers who participated in the African francophone literary renaissance. Their works are influenced by their activism and their strong ties to African contemporary scholarly critique.
Josefina Bueno Alonso
doaj   +1 more source

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

open access: yesAdvanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya   +6 more
wiley   +1 more source

The Unreliable Traces of the West: Mark Twain's Appropriation of a Symbolical Landscape in Roughing It

open access: yesMiranda: Revue Pluridisciplinaire du Monde Anglophone, 2012
The purpose of this article is to consider the function of traces in Mark Twain's representation of the West in Roughing It. Through the humorous appropriation of the topographical, literary and iconographic markings which provide the landscape with its ...
Delphine Louis-Dimitrov
doaj   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Stochastic Frontier Models [PDF]

open access: yes, 2008
The stochastic frontier model was first proposed in the context of production function estimation to account for the effect of technical inefficiency. The inefficiency causes actual output to fall below the potential level (that is, the production frontier) and also raises production cost above the minimum level (that is, the cost frontier).
openaire   +1 more source

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