Results 51 to 60 of about 21,725 (150)

Electrical Maxwell demon and Szilard engine utilizing Johnson noise, measurement, logic and control. [PDF]

open access: yesPLoS ONE, 2012
We introduce a purely electrical version of Maxwell's demon which does not involve mechanically moving parts such as trapdoors, etc. It consists of a capacitor, resistors, amplifiers, logic circuitry and electronically controlled switches and uses ...
Laszlo Bela Kish, Claes-Göran Granqvist
doaj   +1 more source

The evidence for old age motor neuron death: A scoping review

open access: yesPhysiological Reports, Volume 14, Issue 11, June 2026.
We systematically evaluated the extant literature on age‐related motor neuron (MN) death in aging, focusing on studies directly assessing MNs. We show that in the spinal cord and brainstem, there is robust evidence for MN loss, particularly in the human spinal cord. In rats, MN loss was readily observed across a variety of labelling methods and regions,
Sang Won Cheung, Matthew J. Fogarty
wiley   +1 more source

Axiomatic Information Thermodynamics

open access: yesEntropy, 2018
We present an axiomatic framework for thermodynamics that incorporates information as a fundamental concept. The axioms describe both ordinary thermodynamic processes and those in which information is acquired, used and erased, as in the operation of ...
Austin Hulse   +2 more
doaj   +1 more source

Beating the Thermal Limit of Qubit Initialization with a Bayesian Maxwell’s Demon

open access: yesPhysical Review X, 2022
Fault-tolerant quantum computing requires initializing the quantum register in a well-defined fiducial state. In solid-state systems, this is typically achieved through thermalization to a cold reservoir, such that the initialization fidelity is ...
Mark A. I. Johnson   +7 more
doaj   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 5, Page 2206-2224, May 2026.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa   +4 more
wiley   +1 more source

Limits of Landauer’s principle and of the second law of thermodynamics

open access: yesEntropie
Since 1857, the second law of thermodynamics has faced the challenge of Maxwell’s imagined demon. The widely accepted response to this challenge suggests that the demon requires a bit of information to work, and according to Landauer’s principle ...
Jean Argouarc’h
doaj   +1 more source

Trends in marine species distribution models: a review of methodological advances and future challenges

open access: yesEcography, Volume 2026, Issue 5, May 2026.
Correlative species distribution models (SDMs) are quantitative tools in biogeography and macroecology. Building upon the ecological niche concept, they correlate environmental covariates to species presence to model habitat suitability and predict species distributions.
Moritz Klaassen   +3 more
wiley   +1 more source

Maxwell’s Demon Is Foiled by the Entropy Cost of Measurement, Not Erasure

open access: yesFoundations
I dispute the conventional claim that the second law of thermodynamics is saved from a “Maxwell’s demon” by the entropy cost of information erasure and show that instead it is measurement that incurs the entropy cost.
Ruth E. Kastner
doaj   +1 more source

From niche theory to demographic realities: the demographic niche concept for understanding range‐wide population dynamics

open access: yesEcography, Volume 2026, Issue 5, May 2026.
The ecological niche concept is fundamental to understanding species distributions but often overlooks the demographic processes shaping said distributions. Conversely, demographic theory has traditionally neglected how vital rates vary and covary across environments, limiting our understanding of population dynamics across species' ranges.
Sean E. H. Pang   +5 more
wiley   +1 more source

A Modified Szilard's Engine: Measurement, Information, and Maxwell's Demon

open access: yesEntropy, 2004
: Using an isolated measurement process, I've calculated the effect measurement has on entropy for the multi-cylinder Szilard engine. This calculation shows that the system of cylinders possesses an entropy associated with cylinder total energy states ...
Michael Devereux
doaj   +1 more source

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