Results 31 to 40 of about 217,406 (169)

An MRI assessment of mechanisms underlying lesion growth and shrinkage in multiple sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
By applying the tensor model, we analysed lesion orientation and the directionality of lesion expansion/contraction in multiple sclerosis. Each lesion is summarized as an ellipsoid, and the tensor model is applied to calculate lesion anisotropy. From the top to the bottom white matter atlas, surface‐in gradient segmentation and venous atlas used in the
Ermelinda De Meo, Ferran Prados Carrasco, J. William L. Brown, Alasdair J. Coles, Nick G. Cunniffe, Amy E. Jolly, Baris Kanber, Rebecca Samson, Frederik Barkhof, Declan Chard   +9 more
wiley   +1 more source

Magnetic Field‐Assisted Conductive Nerve Guidance Conduit Enabling Peripheral Nerve Regeneration with Wireless Electrical Stimulation

Advanced Functional Materials, EarlyView.
This study introduces a conductive nerve guidance conduit integrated with wireless electrical stimulation through alternating magnetic fields, which induces currents and creates a supportive microenvironment for nerve regeneration. In vivo studies show that this approach significantly enhanced myelin restoration, gastrocnemius muscle regeneration ...
Shiheng Liu, Li‐Fang Zhu, Ming‐Wei Chang, Chao Li, Tingyu Wang, Rong Wang, Xinghao Yan, Baolin Wang   +7 more
wiley   +1 more source

An analog of Chang inversion formula for weighted Radon transforms in multidimensions [PDF]

, 2016
In this work we study weighted Radon transforms in multidimensions. We introduce an analog of Chang approximate inversion formula for such transforms and describe all weights for which this formula is exact.
F. Goncharov, R. Novikov
semanticscholar   +1 more source

Dynamic Micromechanical Characterization of 3D Printed Bone In Vitro Models Manufactured via Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This study presents a novel approach to designing and fabricating high‐porosity 3D‐printed scaffolds using a customized resin. Scaffold geometry, cellular interactions, and mechanical properties are analyzed to demonstrate these engineered bone models.
Sera Choi, Elizabeth Hunt, Edward A. Shangin, Zahra Bahranifard, Emma Nguyen, Caitlyn J. Collins, Abby R. Whittington   +6 more
wiley   +1 more source

Direct evidence for inversion formula in multifractal financial volatility measure [PDF]

Chinese Phys. Lett. 26, 028901, (2009), 2008
The inversion formula for conservative multifractal measures was unveiled mathematically a decade ago, which is however not well tested in real complex systems. In this Letter, we propose to verify the inversion formula using high-frequency turbulent financial data.
arxiv   +1 more source

A Quillen adjunction between algebras and operads, Koszul duality, and the Lagrange inversion formula [PDF]

, 2016
We define, for a somewhat standard forgetful functor from nonsymmetric operads to weight graded associative algebras, two functorial "enveloping operad" functors, the right inverse and the left adjoint of the forgetful functor. Those functors turn out to
V. Dotsenko
semanticscholar   +1 more source

Cell Membrane Vesicle Camouflaged Artificial Cells

Advanced Functional Materials, EarlyView.
Artificial cells camouflaged with a cell membrane vesicle coating are able to assemble into synthetic aggregates that exhibit rudimentary communication capabilities. Additionally, when these artificial cells are equipped with antioxidant capabilities, they are able to protect the intracellular homeostasis in HepG2 cells present in semi‐synthetic ...
Paula De Dios Andres, Stefan Pendlmayr, Noga Gal, Cathrine Abild Meyer, Cecilie Ryberg, Olav Vestrheim, Noel Angelo Kalacas, Fatih Demir, Markus M. Rinschen, Karsten Haupt, Rajeshwar Prosad Mookerjee, Brigitte Städler   +11 more
wiley   +1 more source

Magnetically Guided Mechanoactive Mineralization Scaffolds for Enhanced Bone Regeneration

Advanced Functional Materials, EarlyView.
A 3D‐printed ‘rebar‐concrete’ inspired scaffold (PGS‐P@MGel) synergizes spontaneous biomineralization with magneto‐mechanical stimulation through PDA@Fe3O4‐embedded hydrogel. This dual biointerface activates Piezo1/β‐catenin/YAP mechanotransduction axis, enhancing BMSCs osteogenesis and angiogenesis simultaneously.
Xuran Guo, Zaijin Tao, Zhenzhen Dai, Yinghua Gao, Chengzhen Chu, Cunyi Fan, Shen Liu, Xin Ma, Fangchun Jin, Zhengwei You, Jia Jiang   +10 more
wiley   +1 more source

Development of Itaconate Polymers Microparticles for Intracellular Regulation of Pro‐Inflammatory Macrophage Activation

Advanced Healthcare Materials, EarlyView.
This study develops itaconate‐based polymer microparticles (IA‐MPs) for macrophage‐targeted intracellular delivery, overcoming the limitations of traditional itaconate administration. IA‐MPs achieve controlled release through phagocytosis, reducing pro‐inflammatory cytokine expression and reprogramming macrophage metabolism toward glycolysis.
Kaitlyn E. Woodworth, Zachary S.C.S. Froom, Natasha D. Osborne, Christian N. Rempe, Brenden Wheeler, Kyle Medd, Neal I. Callaghan, Huikang Qian, Abhinav P. Acharya, Carlie Charron, Locke Davenport Huyer   +10 more
wiley   +1 more source

One‐Shot Remote Integration of Macromolecular Synaptic Elements on a Chip for Ultrathin Flexible Neural Network System

Advanced Materials, EarlyView.
A novel one‐shot integration electropolymerization (OSIEP) method is developed as a breakthrough on the intricate photolithographic steps, enabling to compress all processes from synthesis to channel integration in one‐shot manufacturing. The specially designed dual bipolar electrodes provide the targeted depositions of poly(3,4‐ethylenedioxythiophene)
Jiyun Lee, Jaehoon Lee, Hyeonsu Bang, Tae Woong Yoon, Jong Hwan Ko, Guobing Zhang, Ji‐Sang Park, Il Jeon, Sungjoo Lee, Boseok Kang   +9 more
wiley   +1 more source