Results 251 to 260 of about 63,636 (293)

The Caloric Theory of S. L. Metcalfe

The British Journal for the History of Science, 1984
Samuel Lytler Metcalfe (1798–1856) was an American chemist and physician who wrote a voluminous work, Caloric Its Mechanical Chemical and Vital Agencies in the Phenomena of Nature (2 vols., London, 1843); attempting to account for all natural phenomena in terms of caloric.
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An Atomic Theory of the Magneto-Caloric Effect

Nature, 1936
As a result of an investigation on the change of temperature with magnetisation, Mr. T. Okamura has succeeded in separating the reversible and irreversible thermal effects. He has shown that the irreversible temperature variation agrees satisfactorily with the Honda-Okubo theory of ferromagnetism1.
KOTARO HONDA, TOKUTARO HIRONE
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Caloric theory: beginning of its end

2020
Abstract The early 1800s provided new evidence challenging the caloric theory when Rumford bored a cannon and boiled water, Davy melted ice by using friction, and Young made the connection between light and radiant heat. Mayer and Joule then succeeded in killing caloric by simply ignoring it and instead embracing work–heat equivalence.
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Theory of giant-caloric effects in multiferroic materials

Journal of Physics D: Applied Physics, 2013
A generalized thermodynamic theory of giant-caloric effects in coupled multiferroic solids is introduced. The generalized theory allows analytical derivation of any caloric effect in solids displaying any type of cross coupling. In the particular cases of the non-coupled ferroic materials, the theory reproduces the well-known formulae describing ...
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Toward a unified theory of caloric restriction and longevity regulation

Mechanisms of Ageing and Development, 2005
The diet known as calorie restriction (CR) is the most reproducible way to extend the lifespan of mammals. Many of the early hypotheses to explain this effect were based on it being a passive alteration in metabolism. Yet, recent data from yeast, worms, flies, and mammals support the idea that CR is not simply a passive effect but an active, highly ...
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Chaos Theory Applied to the Caloric Response of the Vestibular System

Computers and Biomedical Research, 1993
Developments in the field of nonlinear dynamics has given us a new conceptual framework for understanding the mechanisms involved in the regulation of complex nonlinear systems. This concept, called "chaos" or "deterministic chaos," has been applied to EKG, EEG, and other physiological signals, but not yet to the ENG signal.
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The Wave Theory of Heat: A Forgotten Stage in the Transition from the Caloric Theory to Thermodynamics

The British Journal for the History of Science, 1970
Research on thermal “black-body” radiation played an essential role in the origin of the quantum theory at the beginning of the twentieth century. This is a well-known fact, but historians of science up to now have not generally recognized that studies of radiant heat were also important in an earlier episode in the development of modern physics: the ...
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Controversies on the caloric response:From Bárány's Theory to Studies in Microgravity

Acta Oto-Laryngologica, 1990
Two objections against Robert Bárány's scientific contributions are reviewed. Firstly the Medical Faculty in Vienna raised the question as to whether Bárány really could be credited with the initial discovery of the caloric reaction in man and whether therefore it was justified to have awarded him the Nobel Prize in 1914.
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Heat Engines and the Caloric Theory of Heat

1996
This chapter will present an alternative route to the thermodynamics of simple fluids at a slightly higher mathematical level, allowing for a generalization of the subject of thermodynamics of uniform fluids. The most important difference to the previous development has to do with what we assume to know about the nature of heat.
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CAN EXPERIMENTS ON CALORIC RESTRICTION BE RECONCILED WITH THE DISPOSABLE SOMA THEORY FOR THE EVOLUTION OF SENESCENCE?

Evolution, 2001
A publication by Shanley and Kirkwood (2000) attempts to explain data on caloric restriction (CR) and life extension in the context of the Disposable Soma (DS) theory for the evolution of senescence. As the authors concede, this juxtaposition appears at first to offend intuition: According to the DS theory, senescence is the result of a tight budget ...
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