Results 41 to 50 of about 2,133,361 (343)

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

open access: yesAdvanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda   +11 more
wiley   +1 more source

Theory of international relations

open access: yes, 2021
H παρούσα διατριβή ασχολείται με τα Μικρά Κράτη στο διεθνές σύστημα και επικεντρώνεται στη μελέτη της βιβλιογραφίας επί των διεθνών σχέσεων των Μικρών Κρατών. Kαταγράφει, συνοψίζει, αποτιμά την υπάρχουσα βιβλιογραφία, αναλύει και συνθέτει τα ευρήματα, προκειμένου να παρουσιάσει ένα συνεκτικό πλαίσιο ανάλυσης των Διεθνών Σχέσεων των Μικρών Κρατών ...
openaire   +1 more source

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single‐Atoms to Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes recent advances in closed‐cell in situ TEM strategies for accurate determination of the activity and stability of single‐atom catalyst systems during operation. Operando conditions causing dynamic changes of SAC systems are highlighted and we explain why ensemble average‐based optical techniques may benefit from the technological
Martin Ek   +4 more
wiley   +1 more source

Prospect Theory Goes to War: Loss-Aversion and the Duration of Military Combat [PDF]

open access: yes, 1997
This paper contributes to the empirical foundation of prospect theory in real-life international relations by testing two of its major implications in the field of military conflict. Using duration analysis for a data set of twentieth century battles, it
Bauer, Thomas, Rotte, Ralph
core   +2 more sources

Review of Thin Lithium Metal Battery Anode Fabrication – Microstructure – Electrochemistry Relations

open access: yesAdvanced Materials, EarlyView.
Thin, lightweight lithium‐metal anodes are pivotal for practical high‐energy batteries. This review surveys processing routes that convert diverse Li precursors, e.g., ingots, melts, solutions, and vapor, into Li‐rich foils with controlled thickness, areal density, and tailored functionality.
Yuhang Hu   +6 more
wiley   +1 more source

Political Turmoil in ECOWAS: When Politics Prevails Over Law [PDF]

open access: yesУченые записки Института Африки Российской академии наук
Several military regimes have recently come to power within the Economic Community of West African States (ECOWAS). This article on the political crisis in ECOWAS examines the main causes of these developments in the region and the approaches of regional
Adu Yao Nikez   +1 more
doaj   +1 more source

How Particle Size Affects Consolidation Behavior, Strain and Properties of Li6PS5Cl Fast Ionic Conductors

open access: yesAdvanced Energy Materials, EarlyView.
The densification process of Li6PS5Cl powders with varying particles size distributions reveals differences in smaller and larger distributions. Higher strain is revealed for the smaller particle size distribution from X‐ray diffraction. Discrete element method simulations uncover that the reason for the higher strain is not the particle size itself ...
Vasiliki Faka   +14 more
wiley   +1 more source

Disentangling the relationships between denomination of origin regulatory councils activities and Spanish wineries' export performance

open access: yesAgribusiness, EarlyView.
Abstract World markets for quality differentiated agri‐food products are highly competitive, presenting significant challenges for firms aiming to compete effectively. Government agencies and business organizations often implement various export promotion policies to address these challenges.
Nicolás Depetris‐Chauvin   +1 more
wiley   +1 more source

Political thought, international relations theory and international political theory: an interpretation [PDF]

open access: yes, 2017
The relationship between political theory, including the history of political thought, and International Relations theory, including the history of international thought has been, and to some extent remains, complex and troubled.
Brown, Chris
core   +1 more source

Foreign labor, peer‐networking and agricultural efficiency in the Italian dairy sector

open access: yesAgribusiness, EarlyView.
Abstract While the presence of immigrants in the agricultural sector is widely acknowledged, the empirical evidence on its economic consequences is lacking, especially from a microeconomic perspective. Using the Farm Accountancy Data Network panel data for Italian dairy farms in the period 2008–2018, the present study investigates the relationship ...
Federico Antonioli   +2 more
wiley   +1 more source

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