L. C. Dunn (1893-1974) spent most of his scientific career conducting research in
developmental genetics as a member of the Zoology Department at Columbia
University in the City of New York. He had an accomplished scientific career
researching mutations in mice, which earned him respect from other geneticists and
scientists....
The first area of investigation involves the electron transport
of sub-mitochondrial particles and their components. The second
area is the synthesis of ATP and other energy linked reactions and
components of the energy conservation and transfer apparatus.
Investigations on the nature of the tetramethyl-p-phenylenediamine
(TMPD) shunt indicated that tetrachlorohydroquinone (TCHQ)...
To develop an assay to detect antibodies to Bacillus
thuringiensis subsp. israelensis in mallard ducks, a growth
curve was first established for the bacterium. The growth
curve indicated that the crystal delta endotoxin would be
best harvested from the rest of the cell material after 12
hours of growth. The...
The application of laser generated ultrasonics was first
demonstrated in the mid-seventies and has shown good potential
when applied to isotropic materials. However, its use with
composite materials is still in the early stages of development.
This study explores the potential for application of laser
generated Rayleigh and Lamb waves...
A study was made to determine biological relationships between the garden symphylan, Scutigerella immaculata (Newport), and an entomogenous fungus, Entomophthora coronata (Costantin), which attacks it under certain conditions. Until this fungus was found to infect this pest, no organism which seemed to offer promise of control had been discovered. Symphylan...
A study of mortality, food consumption, food utilization, and
polyhedral production following single and simultaneous challenges
of the variegated cutworm, Peridroma saucia (Hubner), with DDT
and a nuclear polyhedrosis virus was made. Fourth instar larvae
were challenged topically with three levels of DDT and per os with
three levels of...
To make low grade lumber into high-valued products, finger-jointing is a widely
used method in the timber industry. In certain situations, chip-out occurs degrading the
quality of the joint. To better understand the machining process, a beam-type
dynamometer based on strain gages was designed to analyze the dynamic cutting forces...
Only very recently has modern technology been applied
to the design of the tennis racket. In fact, the tennis
player of a few hundred years ago would easily recognize
today's racket. Although the literature reveals a surprising
number of studies on racket mechanics, little work has been
reported on the...
Laser ultrasonics can be used to nondestructively evaluate structures to determine the existence and location of surface and interior flaws. The goal of this research was to determine if laser ultrasonic techniques can be applied to the inspection of aluminum plate. titanium tubes, and large welded plate structures. The research...
