Results 31 to 40 of about 12,021 (279)

Way of the dagger [PDF]

open access: yes, 2019
A dagger category is a category equipped with a functorial way of reversing morphisms, i.e. a contravariant involutive identity-on-objects endofunctor.
Karvonen, Martti Johannes
core  

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

open access: yesAdvanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk   +6 more
wiley   +1 more source

MÖ 2. Binyıl Seyitömer Höyük Metal Silahları / Seyitömer Mound Metal Weapons from the 2nd Millennium BC

open access: yesArkhaia Anatolika
This study aims to evaluate the metal weapons unearthed from layer IV of Seyitömer Mound, located in Inner Anatolia, which represents the Late Colony and Old Hittite Periods, within the framework of their typological classification and counterparts ...
Rana BAŞKURT USTA
doaj   +1 more source

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

open access: yesAdvanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens   +8 more
wiley   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

open access: yesAdvanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno   +16 more
wiley   +1 more source

Emergent Spin Supersolids in Frustrated Quantum Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang   +2 more
wiley   +1 more source

Dagger Nematode Xiphinema spp. (Cobb, 1913) Inglis, 1983 (Nematoda: Enoplea: Dorylaimia: Dorylaimina: Xiphinematinae)

open access: yesEDIS, 2015
Dagger nematodes parasitize plants. They cause economic damage and death of host crops through feeding on the roots and by spreading viral mosaic and wilting diseases, but field studies have shown that some control measures targeting reduction in the ...
William K. Heve   +2 more
doaj   +5 more sources

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

open access: yesAdvanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni   +10 more
wiley   +1 more source

Monads on dagger categories [PDF]

open access: yes, 2016
The theory of monads on categories equipped with a dagger (a contravariant identity-on-objects involutive endofunctor) works best when all structure respects the dagger: the monad and adjunctions should preserve the dagger, and the monad and its algebras
Karvonen, Martti, Heunen, Chris
core   +2 more sources

Fleurs de ma ville… Des écus fleurdelisés sur un fourreau médiéval à Vénissieux (Rhône)

open access: yesArchéologie Médiévale
In 2007 an archaeological survey was carried out in the centre of Vénissieux, a suburban town of the Lyon metropolitan area and a medieval fortified village existing at least since the 10th c.
Christophe Landry   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy