Results 51 to 60 of about 81,928 (216)

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

open access: yesAdvanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu   +5 more
wiley   +1 more source

π‐Enlargement in Porphyrin Macrocycles at Interfaces

open access: yesAngewandte Chemie, EarlyView.
On‐surface synthesis of a 20‐π free‐base expanded porphyrin, by depositing onto a hot Ag(111) substrate an 18‐π free‐base precursor equipped with ‐CF3 functional groups ABSTRACT Porphyrins are essential heteroatomic macrocycles, fundamental to both biological systems and advanced technology.
Ana Barragán   +11 more
wiley   +2 more sources

Prague, the Victorious May of 1945

open access: yesVestnik MGIMO-Universiteta, 2020
The article deals with complex and controversial issues related to the uprising and liberation of Prague in May 1945. Interpretation of the events became acute and caused lively discussions in connection with the demolition of the monument to Marshal I ...
S. V. Kudryashov
doaj   +1 more source

DC‐magnetometry Analytical Tool Driven by Spin Ordering Phenomena for Sensing Chemical Interactions at the Surface of Nanomaterials

open access: yesAdvanced Science, EarlyView.
The adsorption of AsV on akaganeite nanorods was found to provide a magnetic signature. A change in the surface spin order gave rise to a second peak in the zero‐field cooled curve. AsIII adsorption does not provide any change in the magnetic behavior of the sorbent.
Marco Sanna Angotzi   +11 more
wiley   +1 more source

Radical‐Based On‐Surface Transformation of Nonplanar Aromatics Into Nonbenzenoid Nanographenes

open access: yesAngewandte Chemie, EarlyView.
Formation of radicals in nonplanar hydrocarbons through thermally induced dehydrogenation leads to molecular transformation via intramolecular radical‐based cyclization and dimerization, leading to formation of nonbenzenoid nanographenes. ABSTRACT On‐surface synthesis has emerged as a powerful tool for atomically precise C─C bond formation, enabling ...
Daniel Rothhardt   +8 more
wiley   +2 more sources

Exhibition Сzech and Кoman King Wenceslas IV: «Beautiful Style» of Gothic Art. On the 600th Anniversary of the Death of the Czech King

open access: yesКонцепт: философия, религия, культура, 2020
The article is devoted to the historical and cultural aspects of the development of Czech art in the late Middle Ages on the example of an exhibition held from August 16 to November 3 at Prague Castle, which was dedicated to the 600th anniversary of the ...
A. M. Lanceva
doaj   +1 more source

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

N.P. Kondakov and the Kondakov Institute for Byzantology and Archeology in Belgrade (1938-1941) [PDF]

open access: yesZbornik Radova Vizantološkog Instituta
The knowledge in Belgrade about the work of the Kondakov Institute for Byzantology and Archeology has been reconstructed for the most part based on personal correspondence that the members of the Institute exchanged during their stays in ...
Milovanović Milan B.
doaj   +1 more source

Examining the Impact of Row Planting on Labor Use for Sustainable Food Production Among Maize Farmers in Rural Ghana

open access: yesAgribusiness, EarlyView.
ABSTRACT Smallholder farmers are reverting to traditional production methods due to the high opportunity costs and unintended consequences of new technologies. This study focuses on row planting technology, which is labor‐intensive and slow without mechanized operations.
Emmanuel Tetteh Jumpah   +4 more
wiley   +1 more source

Gallus as a Polyphonic Mass Composer

open access: yesDe Musica Disserenda
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Marc Desmet
doaj   +1 more source

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