Results 71 to 80 of about 14,100 (298)

Comment on Reply to Comment on ‘Electromagnetic lensing using the Aharonov–Bohm effect’

New Journal of Physics
Recently, Schreiber and Wolf (2024 New J. Phys. 26 118002) have questioned the validity of Stokes’ theorem, one of the most important tools in the theory of electromagnetism, by stating a counterexample.
Markus Lentzen
doaj   +1 more source

A note on Mcgee’s counterexample to Modus Ponens

Principia: An International Journal of Epistemology
In this article I will review McGee's famous counterexample to Modus Ponens and I will argue that it is not a real counterexample. I will claim that the problem lies in an infelicitous assertion of the second premise.
Mariela Rubin
doaj   +1 more source

A Counterexample to Modus Tollens [PDF]

Journal of Philosophical Logic, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications

Laser &Photonics Reviews, EarlyView.
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu, Lyudmila V. Goncharova, Eric Johlin   +2 more
wiley   +1 more source

Toxicity Differences Between Microplastics and Nanoplastics in Organs: From Molecular Mechanisms to Potential Therapeutic Strategies

Med Research, EarlyView.
This review systematically compares the size‐dependent toxicity of microplastics and nanoplastics in the intestine, liver, kidney, lung, and brain. Particle size determines bioavailability, barrier penetration, and injury mechanisms. Because of their small size and high surface reactivity, NPs readily cross the intestinal epithelium and blood–brain ...
Yixian Cheng, Junjie Chen, Rui Fu, Jiawei Zhang, Jianguang Jia, Wei Wang, Zheng Zhang, Peng Zhang, Haosong Chen, Huake Cao, Gang Li, Weiwei Sheng, Ting Li, Bo Chen, Guodong Cao   +14 more
wiley   +1 more source

Moral Responsibility and Time Travel in an Indeterministic World

Philosophies
I have argued against the Principle of Alternative Possibilities using a time travel-based counterexample. Kelly McCormick has responded to my counterexample by arguing that the time travel scenario must be a scenario in which a time traveler’s actions ...
Joshua Spencer
doaj   +1 more source

A 64-dimensional counterexample to Borsuk's conjecture [PDF]

, 2014
Bondarenko's 65-dimensional counterexample to Borsuk's conjecture contains a 64-dimensional counterexample.
Jenrich, T., Jenrich, T, Andries E. Brouwer, Brouwer, AE Andries, Brouwer, A.E., Thomas Jenrich   +5 more
core   +1 more source

Equivalences of Nonlinear Higher Order Fractional Differential Equations With Integral Equations

Mathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6930-6942, April 2025.
ABSTRACT Equivalences of initial value problems (IVPs) of both nonlinear higher order (Riemann–Liouville type) fractional differential equations (FDEs) and Caputo FDEs with the corresponding integral equations are studied in this paper. It is proved that the nonlinearities in the FDEs can be L1$$ {L}^1 $$‐Carathéodory with suitable conditions.
Kunquan Lan
wiley   +1 more source

Washed Microbiota Transplantation Improves Chronic‐Phase Febrile Infection‐Related Epilepsy Syndrome: The First Case Report With Long‐Term Follow‐Up and Integrated Multi‐Omics Analysis

Microbiota Medicine Research, EarlyView.
ABSTRACT Background Febrile infection‐related epilepsy syndrome (FIRES) is a catastrophic epileptic encephalopathy. Survivors often enter a chronic phase characterized by drug‐resistant epilepsy, cognitive impairment, behavioral and psychiatric symptoms, and long‐term functional disability.
Qianqian Li, Xiao Ding, Sheng Zhang, Faming Zhang   +3 more
wiley   +1 more source

Checking counterexample to Kaplansky units conjecture

, 2021
No description ...
Alexander Konovalov
core   +1 more source