2003-2004 Regional Awards
Scholarship Recipients at the December 2003 WV Regional JSHS:
1st Place: Kellen Calinger, Mount de Chantal Visitation Academy
2nd Place: Kelydra Welcker, Blennerhassett Junior High School
3rd Place: Jennifer Worley, Keyser High School
Abstracts from Scholarship Recipients
Mt. de Chantal Visitation Academy
Exchange Dynamics III: Carbon Dioxide Dependency of Carbon and Nitrogen Storage
on Nitrogen Availability in a Temperate Deciduous Forest
research includes a quantification of components of the nitrogen cycle and their
responses to CO2. The effects of
soil nitrogen availability on C products were investigated.
The effects of enhanced atmospheric [CO2] and soil N availability on leaf
N content was studied. An
instrument was designed that extracted soil gases from the root and below
root-zones of sugar maples grown in varying CO2 and soil N environments to study
the effects of elevated [CO2] and soil N levels on [PCO2] of the
rooting-zones. The SLA was
determined in relation to atmospheric [CO2] and soil N availability.
The trees grown in increased soil N environments experienced elevated
leaf [N] on early samplings. The
leaf [N] spiked in later fall testings stimulating decreasing photosynthetic
rates. The ambient environment
experienced stable leaf nitrogen.
Increased soil [N] caused an increase in [carbonate] of rooting zones of the
enriched soil nitrogen environment and the elevated CO2 and N environment.
The increased CO2 environment experienced elevated soil [carbonate] in
both rooting-zones; the [PCO2] followed similar trends. The increased CO2 and nitrogen environment displayed the
highest SLA followed by increased CO2, increased N and the ambient environment.
Blennerhassett Junior High School
Sponsoring Teacher: Carol Peck
Macroinvertebrates for Testing and Assessment of Endocrine Disruption in the
Xenoestrogenic chemicals are being discovered in America’s rivers and
streams at biologically active levels. This project utilized macroinvertebrates
as bioindicators of xenoestrogenic chemicals in the Ohio River, using the
principles of scaling to determine invertebrate variation.
Pleurocera canniculatum, Elimia virginica, and Corbicula fluminea
were collected from every public access site in a 165-mile stretch of the Ohio
River and a basic growth constant calculated. (GC = L3/Wt.) Water was taken from
sites exhibiting abnormal constants and used to culture Culicinae mosquito
larvae. Mosquito wingbeat frequency variations were compared to those from
mosquitoes hatched from known concentrations of TRI listed chemicals from
upstream industries. (Mosquito wingbeat frequency is gender-determined and
species- specific, and variations indicate disruption of normal endocrine system
Keyser High School
Charles H. Worley II
Auxiliary Design: A Systems Combination to Eliminate Sole-Means Risks...
The purpose of my
project is to integrate a propulsion back-up system into the primary
system of a rover. It should be dissimilar to avoid common failure, while
consuming the same amount of resources and be able to assist the primary system.
A vehicle was built using the back-up system as the only means of
propulsion. Four legs were attached
to a rail system on the rover's deck, allowing the legs to be pulled forward or
backwards simultaneously. A large piston, capable of lifting the rover and
left-right rotation, was centered on the vehicle.
Movement was achieved using Shape Memory Alloy Electronic Pistons, and
understanding the principals of linear action, bias force, basic lever, and
Electric motors, were attached to brass tubes, and slipped on each leg,
then wheels were mounted on the motors.
This configuration allows independent steering and four, front or rear
Needing only one wheel on each side functioning, the rover could navigate
with 78% of the primary system down prior to calling on the back-up system.
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