Results 41 to 50 of about 36,471 (278)

Self‐Immolative Activatable Nanoassembly toward Immuno‐Photodynamic Therapy in TME

Advanced Functional Materials, EarlyView.
A quinone methide‐gated, self‐immolative, H2O2‐responsive nano‐photosensitizer (Pyz/PS) is developed for targeted immuno‐photodynamic therapy. Pyz/PS selectively activates within tumor microenvironments, restores photosensitizer activity, generates ROS, and depletes intracellular GSH, enhancing oxidative stress.
Jing Li, E Pang, Snehasish Debnath, Jia Hong, Aojun Qiu, Dongeun Kim, Goeun Kim, Minhuan Lan, Min‐Goo Lee, Qian‐Yong Cao, Jong Seung Kim   +10 more
wiley   +1 more source

Chiral Nanohoops as an Efficient Spin Polarization System

Advanced Functional Materials, EarlyView.
Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta, Philipp Seitz, Mathias Hermann, Birgit Esser, Ron Naaman   +4 more
wiley   +1 more source

Radon transform computer [PDF]

, 1990
In this final report, we summarize some of our results from September 1989 to October 1990. The design, construction, and testing of a four-processor prototype multi-processor (RTP) board using TI TMS320C25 DSP chips has been completed. We are now finishing the extensive detailed final documentation of the RTP hardware and software.
Current, W., Hurst, P., Ford, G., Shieh, E., Agi, I., Nguyen, C., Peterson, D. (California Univ., Davis, CA (USA). Dept. of Electrical Engineering, Computer Science)   +10 more
openaire   +2 more sources

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

Advanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras, Imelda Raczkiewicz, Peggy Bouquet, Jean‐Philippe Dacquin, Jeremy Dhainaut, Anne Goffard, Christophe Volkringer   +6 more
wiley   +1 more source

Systematic review of statistical methods for the identification of buildings and areas with high radon levels

Frontiers in Public Health
Radon is a natural and radioactive noble gas, which may accumulate indoors and cause lung cancers after long term-exposure. Being a decay product of Uranium 238, it originates from the ground and is spatially variable.
Joan F. Rey, Joan F. Rey, Sara Antignani, Sebastian Baumann, Christian Di Carlo, Niccolò Loret, Claire Gréau, Valeria Gruber, Joëlle Goyette Pernot, Francesco Bochicchio   +9 more
doaj   +1 more source

A Variable-Diameter-Arc-Helix Radon Transform for Detecting a Near Space Hypersonic Maneuvering Target

IEEE Access, 2019
For detection and tracking of a near space hypersonic maneuvering target in a heavy clutter environment, a novel transform domain method called Variable-Diameter-Arc-Helix Radon Transform (VDAH-RT) is proposed as a tool to integrate observations along ...
Wei Wu, Guohong Wang, Jinping Sun
doaj   +1 more source

Nanodiamond‐Based Quantum Sensing Reveals Changes in Endo‐Lysosomal Activity of Stimulated Cardiac Fibroblasts in a Cellular Fibrosis Model

Advanced Functional Materials, EarlyView.
Quantum sensing reveals intricate patterns linking endo‐lysosomal maturation to cardiac fibrosis progression, highlighting complexity in cellular remodeling. This study investigates fibroblast‐to‐myofibroblast transition under cell aging, stiffness, and TGF‐β stimulation, comparing nanodiamond uptake, endo‐lysosomal dynamics, and free radical ...
Aldona Mzyk, Ezgi Yilmaz, Giovanni D Angelo, Kirstine Berg‐Sørensen   +3 more
wiley   +1 more source

Evaluating the impact of indoor aerosols on the performance of real-time radon sensors

Frontiers in Built Environment
Radon, a naturally occurring radioactive gas, poses a significant health risk by accumulating in buildings and potentially leading to lung cancer. Depending on building construction and geographical location, radon levels can vary substantially both ...
Joan F. Rey, Joan F. Rey, Nicolas Meisser, Dusan Licina, Joëlle Goyette Pernot   +4 more
doaj   +1 more source

Trkalian fields: ray transforms and mini-twistors

, 2013
We study X-ray and Divergent beam transforms of Trkalian fields and their relation with Radon transform. We make use of four basic mathematical methods of tomography due to Grangeat, Smith, Tuy and Gelfand-Goncharov for an integral geometric view on them.
Bailey T. N., Baird P., Dunajski M., Erdelyi A., Folland G. B., Gelfand I. M., Gelfand I. M., Gelfand I. M., Gelfand I. M., Gonzalez F. B., Gradshteyn I. S., Grangeat P., Jeffrey A., K. Saygili, Kanwal R. P., Louis A. K., Lundquist S., Markoe A., Marsden J. E., Minkowski H., Murray M. K., Palamadov V. P., Pantilie R., Pantilie R., Penrose R., Penrose R., Radon J., Ramm A. G., Rubin B., Semyanistyi V. I., Semyanistyi V. I., Shaw W. T., Stratton J. A., Watson G. N.   +33 more
core   +1 more source

Discrete radon transform [PDF]

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1987
This paper describes the discrete Radon transform (DRT) and the exact inversion algorithm for it. Similar to the discrete Fourier transform (DFT), the DRT is defined for periodic vector-sequences and studied as a transform in its own right. Casting the forward transform as a matrix-vector multiplication, the key observation is that the matrix-although ...
openaire   +1 more source