User profiles for David Martyn

David Martyn

Professor of German, Macalester College
Verified email at macalester.edu
Cited by 268

Electric currents in the ionosphere-the conductivity

WG Baker, DF Martyn - … of the Royal Society of London …, 1953 - royalsocietypublishing.org
An earlier suggestion by Martyn that the effective conductivity of the ionosphere in the dynamo
theory is enhanced by polarization of the Hall current is examined in quantitative detail. …

Atmospheric tides in the ionosphere - I. Solar tides in the F2 region

DF Martyn - Proceedings of the Royal Society of London …, 1947 - royalsocietypublishing.org
A theory, based on solar tides, is advanced to explain the anomalous seasonal, diurnal and
geographical variations of F 2 region ionization. It is shown that the horizontal winds due to …

The theory of magnetic storms and auroras

DF Martyn - Nature, 1951 - nature.com
Martyn's treatment is founded on ChapmanFerraro's theory of magnetic storms. It is not my
Martyn tries to erect on this weak ground. It is much more interesting to recall Dr. Martyn's

The morphology of the ionospheric variations associated with magnetic disturbance I. Variations at moderately low latitudes

DF Martyn - Proceedings of the Royal Society of London …, 1953 - royalsocietypublishing.org
A study is made of the variations in the heights and densities of the ionospheric regions,
particularly the F 2 region, during magnetic disturbance. Data from three observatories in …

Electric currents in the ionosphere-Ionization drift due to winds and electric fields

DF Martyn - … Transactions of the Royal Society of London …, 1953 - royalsocietypublishing.org
An analysis is made of the drift velocity of the (neutral) ionization in a uniform ionosphere
under the influences of an electric field and/or atmospheric wind. It is shown that this drift of …

Atmospheric tides in the ionosphere. II. Lunar tidal variations in the F region near the magnetic equator

DF Martyn - Proceedings of the Royal Society of London …, 1947 - royalsocietypublishing.org
Three years’ data for the heights and critical frequencies of the F 1 and F 2 regions at Huancayo,
Peru, are examined for lunar tides. Semi-diurnal lunar tides are found in all quantities …

The temperatures and constituents of the upper atmosphere

DF Martyn, OO Pulley - … of the Royal Society of London …, 1936 - royalsocietypublishing.org
In a previous paper attention was drawn by one of us to the fact that the upper ionized, F,
region of the ionosphere tended to reach a minimum height in the early morning. A study of the …

Retention of biological activity and near-infrared absorbance upon adsorption of horseradish peroxidase on single-walled carbon nanotubes

NR Palwai, DE Martyn, LFF Neves, Y Tan… - …, 2007 - iopscience.iop.org
The objective of this study is to demonstrate the adsorption of horseradish peroxidase (HRP)
on single-walled carbon nanotubes (SWNTs) using the sodium cholate suspension–…

Role of dactinomycin in the improved survival of children with Wilms' tumor

DJ Fernbach, DT Martyn - JAMA, 1966 - jamanetwork.com
Thirty consecutive cases of histologically proved Wilms' tumor followed for a minimum of two
years have been reviewed. The overall survival rate was 70%, with 47% beyond the period …

Solar radiation in the radio spectrum-I. Radiation from the quiet Sun

DF Martyn - Proceedings of the Royal Society of London …, 1948 - royalsocietypublishing.org
The theory of the emission of thermal radiation from the solar envelope at radio-frequencies
is worked out in detail. The Lorentz theory of absorption is used in conjunction with Kirchhoff’…