Results 181 to 190 of about 7,219,482 (297)

Mennine-Stokes Collection; no.07719

open access: yes, 1878
Sepia stereoscope image of the Naid Queen Silver Mine in Georgetown, N. M. Thirteen unidentified individuals pose for the photograph. A small adobe home can be seen at the foot of a scrub covered hill. Image mounted a yellowed matte board. Verso: Written
unknown
core  

Segmented Therapeutic Delivery via Acoustic Microbubble Relay

open access: yesAdvanced Intelligent Systems, EarlyView.
An acoustically driven, modular segmented delivery system is presented to overcome mechanical limitations of conventional microcatheters. Oscillating microbubbles generate directional streaming that enables continuous, targeted transport across open, angled segments.
Lei Wang   +6 more
wiley   +1 more source

Enhancement of Dissymmetry Factors Through Axial Elongation of Hetero[n]helicenes

open access: yesAngewandte Chemie, EarlyView.
A benzofuran scaffolding strategy enables the synthesis of hetero[9]‐, [12]‐, and [15]helicenes. Structural and chiroptical analyses demonstrate that systematic axial elongation increases helical distortion and significantly amplifies luminescence dissymmetry.
Jeppe S. Mogensen   +7 more
wiley   +2 more sources

The Insistence of Blackness and the Persistence of Antiblackness in Ireland

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This paper positions Ireland as a critical site for examining the insistence of blackness and an antiblackness created and sustained through Irish ethnonationalist imaginaries and exclusionary processes. Drawing on connected sociologies and Irish Black Studies, this enquiry argues that antiblackness in Ireland operates as a generational force,
Philomena Mullen
wiley   +1 more source

Monolithic Porous Polymer Architectures for Visible‐to‐UV Upconversion‐Driven Photochemical Reactions

open access: yesAngewandte Chemie, EarlyView.
Porous polymer monoliths embedded with sensitizer–annihilator dye pairs enable efficient solid‐state visible‐to‐ultraviolet triplet–triplet annihilation‐based photon upconversion under low‐intensity blue and green light. Their co‐continuous porous architectures balance chromophore interactions with substrate accessibility, providing robust and tunable ...
Sakura Nakagawa   +5 more
wiley   +2 more sources

One Molecular Platform, Three Distinct Narrowband Organoboron TADF Emitters: A Divergent One‐Pot Strategy From Green to Red

open access: yesAngewandte Chemie, EarlyView.
One platform–three emitters: Divergent one‐pot borylation of a single indolocarbazole platform exploits competing mono‐ and double‐borylation pathways to generate three spectrally distinct organoboron MR‐TADF emitters spanning green to red, enabling color‐tunable narrowband OLEDs with external quantum efficiencies over 30%.
Jun Hyeon Lee   +2 more
wiley   +2 more sources

Hollow-core fiber gas lasers [Invited]. [PDF]

open access: yesLight Sci Appl
Wang Z   +17 more
europepmc   +1 more source

Label-free multimodal nonlinear microscopy enabled by an optical parametric generator. [PDF]

open access: yesAPL Photonics
De la Cadena A   +4 more
europepmc   +1 more source

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