Results 81 to 90 of about 2,059,946 (289)

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Regularity of Minimal Surfaces

open access: yes, 2010
"Regularity of Minimal Surfaces" begins with a survey of minimal surfaces with free boundaries. Following this, the basic results concerning the boundary behaviour of minimal surfaces and H-surfaces with fixed or free boundaries are studied. In
Hildebrandt, Stefan   +3 more
core   +1 more source

Blow-ups of minimal surfaces in the Heisenberg group

open access: yesAnalysis and Geometry in Metric Spaces
In this article, we revise Monti’s results on blow-ups of H-perimeter minimizing sets in Hn{{\mathbb{H}}}^{n}. Monti demonstrated that the Lipschitz approximation of the blow-up, after rescaling by the square root of the excess, converges to a limit ...
Yu Yonghao
doaj   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

Minimal Surfaces as Self-organizing Systems

open access: yes, 2010
Minimal surfaces have been gradually translated from mathematics to architectural design research due to their fascinating geometric and spatial properties. Tensile structures are just an example of their application in architecture known since the early
V. Tenu
core  

On properness of minimal surfaces with bounded curvature

open access: yesAnais da Academia Brasileira de Ciências, 2003
We show that immersed minimal surfaces in the euclidean 3-space with bounded curvature and proper self intersections are proper. We also showthat restricted to wide components the immersing map is always proper, regardless the map being proper or not ...
Gregório P. Bessa   +1 more
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

COMPLETE MINIMAL SUBMANIFOLDS IN R^3

open access: yes, 2007
在這篇論文裡一共有七節,在第一節中,介紹了什麼是極小曲面,在第二節裡,給出了製造極小曲面的有力工具,進而在進入第三節時,造出了一些極小曲面的具體例子並說明何謂完備的極小曲面,到了第四節,給予了完備極小曲面的 Guass map 其性質的討論,進入第五節,首先,透過 Osserman 的定理,我們將焦點集中在具有有限全曲率的完備極小曲面上,接著,將目光礎b end 的行為表現上,來到了第六節,對具有有限全曲率的完備極小曲面做了點分類及給了些曲面不存在的情況,到了最後一節,造出了較第三節要多樣的例子 ...
許裕進, Hsu, Yu-Chin
core  

Two-dimensional Newton's problem of minimal resistance [PDF]

open access: yes, 2006
Newton's problem of minimal resistance is one of the first problems of optimal control: it was proposed, and its solution given, by Isaac Newton in his masterful Principia Mathematica, in 1686. The problem consists of determining, in dimension three, the
Silva, C. J.   +3 more
core   +2 more sources

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

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