Results 181 to 190 of about 4,823,752 (344)

Gauging the diamond: integrable coset models from twistor space

open access: yesJournal of High Energy Physics
Recent work has shown that certain integrable and conformal field theories in two dimensions can be given a higher-dimensional origin from holomorphic Chern-Simons in six dimensions. Along with anti-self-dual Yang-Mills and four-dimensional Chern-Simons,
Lewis T. Cole   +4 more
doaj   +1 more source

Time-like surfaces with zero mean curvature vector in 4-dimensional neutral space forms

open access: yesPracì Mìžnarodnogo Geometričnogo Centru
Let M be a Lorentz surface and F:M→N a time-like and conformal immersion of M into a 4-dimensional neutral space form N with zero mean curvature vector.
Naoya Ando
doaj   +1 more source

A product twistor space

open access: yes, 2002
Summary: In previous work a hyperbolic twistor space over a paraquaternionic Kähler manifold was defined, the fibre being the hyperboloid model of the hyperbolic plane with constant curvature \(-1\). Two almost complex structures were defined on this twistor space and their properties studied.
openaire   +2 more sources

Nanomaterial‐Enhanced Biosensing: Mechanisms and Emerging Applications

open access: yesAdvanced Healthcare Materials, EarlyView.
Nanomaterial integration transforms biosensor capabilities through enhanced signal transduction, sensitivity, and selectivity. This review analyzes how nanoscale materials—from nanoparticles to nanosheets—leverage unique physicochemical properties to revolutionize electrochemical, optical, and electrical biosensing.
Younghak Cho   +3 more
wiley   +1 more source

A Googly Amplitude from the B-model in Twistor Space [PDF]

open access: bronze, 2004
Radu Roiban   +2 more
openalex   +1 more source

A Computational Journey Toward an Optimal Design for Metamaterial Epicardial Passive Sleeves

open access: yesAdvanced Healthcare Materials, EarlyView.
Passive epicardial sleeves are evaluated in 3D in‐silico heart models to reveal how sleeve geometry, stiffness, anisotropy, and metamaterial architecture influence cardiac mechanics after myocardial infarction. A continuum‐to‐auxetic design exploration shows that region‐specific mechanical engagement can reduce infarct bulging and modulate torsional ...
Vahid Naeini   +8 more
wiley   +1 more source

At the Pointy End of Mechanobiology: AFM for Transient Biomechanical Analysis

open access: yesAdvanced Healthcare Materials, EarlyView.
Stem cell mechanosensitivity governs lineage commitment through mechanotransduction, but capturing these transient changes in living cells remains challenging. Advanced atomic force microscopy enables high‐resolution analysis of mechanical properties, real‐time protein distribution, and gene expression, offering fresh insights into cell‐environment ...
Kaiwen Zhang   +5 more
wiley   +1 more source

Closed strings in Misner space: stringy fuzziness with a twist [PDF]

open access: green, 2004
M. Berkooz   +3 more
openalex   +1 more source

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