Results 111 to 120 of about 58,054 (324)

Strings in AdS3: one-loop partition function and near-extremal BTZ thermodynamics

open access: yesJournal of High Energy Physics
We revisit the computation of the string partition function in AdS3 focussing on the appearance of spacetime (super) symmetries. We show how the asymptotic symmetries of the AdS3 spacetime, which generate the boundary (super) Virasoro currents, are ...
Christian Ferko   +2 more
doaj   +1 more source

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou   +4 more
wiley   +1 more source

High‐Concentration Mesogen‐Assisted Exfoliation of Low‐Dimensional Nanomaterials for Achieving Ultralow‐Temperature Actuations of Liquid Crystal Elastomers

open access: yesAdvanced Functional Materials, EarlyView.
Most matter is nominally frozen in the polar regions or space, and liquid crystal materials are no exception. Consequently, soft actuators, including liquid crystal elastomers (LCEs), are inoperative under such extreme cold in response to stimuli, as their motion relies on mechanical deformation.
Hyeonseong Kim   +5 more
wiley   +1 more source

Extremal length for quasiregular mappings on Heisenberg groups

open access: yesJournal of Mathematical Analysis and Applications, 2003
In 1957 \textit{B. Fuglede} [Acta. Math. 98, 171--219 (1957; Zbl 0079.27703)] has introduced a notion of the system of exceptional measures. A system of measures \(E\) is said to be exceptional of order \(p\) if its \(p\)-modulus \(M_p(E)\) vanishes. \textit{E. Poletskiĭ} [Mat. Sb., N. Ser.
openaire   +6 more sources

DENTA: A Dual Enzymatic Nanoagent for Self‐Activating Tooth Whitening and Biofilm Disruption

open access: yesAdvanced Functional Materials, EarlyView.
The nanoapatite with dual enzymes (DENTA) accumulates in dentinal tubules, reducing hypersensitivity caused by dental nerve exposure and facilitating continuous ROS generation through salivary glucose for effective, long‐term whitening. The dentin structures remain non‐destructive due to the low concentration of ROS, demonstrating excellent cell ...
Junseok Kim   +13 more
wiley   +1 more source

Selective and Precise Editing of Digital Polymers Through Parallel or Series Toehold‐Mediated Strand Displacement

open access: yesAdvanced Functional Materials, EarlyView.
A sequence‐encoded supramolecular construct containing two accessible toeholds is developed herein for enabling multiple editing operations. By introducing specific input strands, it is possible to selectively erase or rewrite digital content through parallel or series toehold‐mediated strand displacement (PTMSD or STMSD).
Jakub Ossowski   +3 more
wiley   +1 more source

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