2003 Conference Abstracts
Anthropology/Sociology
KARLI BROOKS SAKAS: SWEET BRIAR COLLEGE
SOME PRELIMINARY INSIGHTS ON KAZAKH CULTURE: A WORK IN PROGRESS
After the fall of the Soviet Union, Kazakhstanis strove to establisha
cultural past separate from Russia's and consistent with their region'sstrong
pastoral nomadic tradition. To gauge the popularity and potentiallongevity
of the new national identity, I observed the attitudes ofthree different
ethnic and age groups of present-day Kazakh citizenstoward modern-day
pastoralists in the Asi Valley of Kazakhstan. Thesegroups were comprised
of an ethnically Kazakh mother and daughter pairwho had lived in the
capital city most of their lives, a group of ethnicallyRussian high
school aged students, and the pastoral nomads themselves.
MANDY WILLIAMS: NEUMANN COLLEGE
TRANSFORMING POSSIBLE GAINS INTO DEADLY LOSSES: FEMALE ATHLETES
ANDTHE FEMALE ATHLETE TRIAD
As a society we are fostering and even encouraging an atmosphere thatis
driving a cycle of disordered eating patterns and psychological issuesin
the female athlete population. Hobart and Smucker have defined theFemale
Athlete Triad as "a combination of three interrelated conditionsthat
are associated with athletic training: disordered eating, amenorrhea,and
osteoporosis." The current societal perception of the "ideal body"is
the driving force behind the epidemic proportions of disordered eatingbehaviors
among the female athlete population.
LEONARD TENGCO: JAMES MADISON UNIVERSITY
THE MYTH OF THE MODEL MINORITY: AN ECONOMIC DECONSTRUCTION OF
ASIANPACIFIC AMERICAN GROUPS IN THE UNITED STATES
As diverse and rapidly changing as the society we live in, Asian PacificAmericans
(APAs) do not conform to any single description. Despite this,there
continues to be the growing stereotype of the "model minority"myth associated
with APAs, which maintains the belief that Asian PacificAmericans have
"made it" in society. An economic analysis of the mostrecent study conducted
by the U.S. Census Bureau reveals that AsianPacific Americans earn a
higher income than any other racial minoritygroups, and are more likely
to earn a high school, undergraduate, andgraduate diploma than any other
racial category. But further analysisreveals a bimodal distribution
in both disposable income and educationamong APA groups. The categorization
of APAs under the umbrella term,"Asian Pacific American," inherently
masks the microlevel economic differentiationamong specific APA groups.
Archaeology
JONATHAN HENRIQUES: VIRGINIA COMMONWEALTH UNIVERSITY
ARCHAEOLOGICAL EVIDENCE OF COLONIAL CULTURAL INTERACTIONS AT
THE RICECENTER, CHARLES CITY COUNTY, VIRGINIA
Recent archaeology at the Rice Center has reveled intriguing clues asto
the early colonial history of the property. This paper describesrecent
archaeological investigations conducted at the site and discusseswhat
the site has revealed and may yet reveal about European and NativeAmerican
contact on the Virginia frontier in the 17th-century. Thesevery different
cultures experienced significant opposition in economicpractice, social
organization, and ideology, the details of which arevisible within the
archaeological record.
TONY BRADLEY: VIRGINIA COMMONWEALTH UNIVERSITY
NATIVE AMERICAN SETTLEMENT AT THE RICE CENTER, CHARLES CITY
COUNTY,VIRGINIA
The archaeological record of pre-historic Virginia reveals a significantNative
American presence not only within the coastal plains, but alsoalong
the banks of major waterways. Sedentary settlements in Virginiamay date
as early as the Late Archaic Period (3000 BCE) and perhapssooner. The
Rice Center is situated in close proximity to identifiedsites falling
within this period. It was not uncommon for settlementsto be in relatively
close proximity to each other on both sides of awaterway such as the
James River, and excavation at the site has reveledevidence of a possible
Native American settlement.
RICK GARRIGAN: VIRGINIA COMMONWEALTH UNIVERSITY
A CASE STUDY OF PUBLIC INTERPRETATION OF ARCHAEOLOGICAL EVIDENCE:
THERICE CENTER, CHARLES CITY COUNTY, VIRGINIA
The James River has always been an important travel and trade route.Recent
research at the Rice Center has disclosed river-centered communitiesdating
back thousands of years. This paper will discuss the role ofarchaeology
in helping to create unique educational and research opportunitiesfor
the communities using the site today. The importance of preservationof
the site, public interpretation of its history, and education basedupon
the site will be focused upon, as will specific programs for accomplishingthese
aims with a variety of audiences.
JESSICA GARBER: VIRGINIA COMMONWEALTH UNIVERSITY
THE ROLE OF THE LIFE SCIENCES IN ARCHAEOLOGICAL INVESTIGATIONS:
THERICE CENTER, CHARLES CITY COUNTY, VIRGINIA
The long history of the Rice Center is now being investigated by a multidisciplinaryteam
of faculty and students at Virginia Commonwealth University. Thispaper
will discuss the specific contributions of scholars in the LifeSciences,
looking at the work of chemists, biologists, ecologists, environmentalscientists,
geologists, and information technology specialists.
JOLENE UPDIKE: VIRGINIA COMMONWEALTH UNIVERSITY
ARCHAEOLOGY OF CIVIL WAR EARTHWORKS AT THE RICE CENTER, CHARLES
CITYCOUNTY, VIRGINIA
Archaeological research at the Rice Center has focused in part on theidentification
of artifacts and features associated with the 1862 encampment100,000
Union soldiers under the command of Gen. George McClellan. Whilethe
body of the encampment likely lies beyond the boundaries of theproperty,
visible, well-preserved earthworks on Rice Center propertysignal a significant
presence. This paper will discuss the historicaland archaeological traces
of the lives and community of the soldiersliving and working in this
encampment.
MEGAN E. EDWARDS: UNIVERSITY OF MASSACHUSETTS AT BOSTON
REU IN BIOARCHAEOLOGY AT SYLVESTER MANOR: FAUNAL ANALYSIS OF
DEPOSITIONAND TAPHONOMY
In the summer of 2003, as in no previous Sylvester Manor field season,students
in a newly instituted REU in Bioarchaeology found themselvespulling
a massive amount of faunal material from the ground. Concentratedlargely
within a few intersecting features, the question arose: to whatend could
all this data be used in getting a handle on the formationand function
of these features? Using a variety of Zooarchaeologicaltechniques, an
attempt was made to learn something of formation process,teasing out
depositional patterns and preservation issues that mustbe addressed
before higher-end speculations can be made as to humanactivity and cultural
land use on a 17th century provisioning plantation.
Art History
SARAH POWELL: THE COLLEGE OF WILLIAM AND MARY
MARY CASSATT: MODERN WOMAN PAINTER, PAINTER OF MODERN WOMEN
More than any other artist (male or female) in the modern era, MaryCassatt
portrayed the lives of women with unquestionable regard andadmiration,
celebrating their day-to-day activities in the home, withtheir peers
and their children as abundant, beneficial, and richly gratifying.Instead
of characterizing the home as an oppressive space for women,Cassatt
distinguished it as a region of personal avocation, productivelabor,
and actualization of the self. Her art is a celebration ratherthan a
condemnation of the private world of modern women. Feminism hadbecome
a powerful political force for social change, as is reflectedin the
artwork of Mary Cassatt, in which the artist dealt with someof the most
significant issues of her time, particularly the reconstitutionof a
culture.
Biology/Biochemistry/Chemistry
AMANDAA K. BOSTICK: ROANOKE COLLEGE
DETERMINING THE STOICHIOMETRIC RATIO OF ZINC TO 8-HYDROXYQUINOLINE
INA COMPLEX
CO-AUTHOR: DR. JACK K. STEEHLER
The concepts and experimental techniques of fluorescence were used todevelop
a stoichiometric experiment suitable for first semester generalchemistry
students. The stoichiometric ratio of a metal ligand complex(zinc and
8-hydroxyquinoline) was studied by fluorescence spectroscopy.Two procedures
were developed: One involving the addition of variousvolumes of zinc
to a fixed volume of 8-hydroxyquinoline and the otherinvolving the addition
of various volumes of 8-hydroxyquinoline to afixed volume of zinc. The
results of both experiments were comparedand a stoichiometric ratio
of ligand to metal was determined.
RYAN CLEMENS: VIRGINIA MILITARY INSTITUTE
THE APPLICATION OF 4-SUBSTITUTEDPHENYL VINAMIDINIUM SALTS TO
THE SYNTHESISOF 2,4-DISUBSTITUTED THIOPHENES
Vinamidinium salts are suitable reagents for the synthesis of many heterocycles.One
heterocycle yet to be prepared from vinamidinium salts is thiophene.Many
thiophene compounds are key intermediates to a wide variety ofsynthetic
targets ranging from biologically active molecules to liquidcrystals
and conducting polymers. A variety of 4-substituted phenylvinamidinium
salts were prepared and allowed to react with methyl thioglycolateto
produce 2,4-disubstituted thiophenes in moderate to high yields.
KIMBERLY ANNE WILSON: SWEET BRIAR COLLEGE
STRUCTURAL CHARACTERIZATION OF A NOVEL ANTI CANCER DRUG: X-RAY
ANALYSISOF [PT(5,6-DIONE-1,10-PHENANTHROLINE)CL2]
CO-AUTHOR: EMMA KATE PAYNE
The compound [Pt(5,6-dione-1,10-phenanthroline)Cl2] (henceforth Pt-dione)has
been shown to be cyto-toxic towards a variety of human cancer cells.Furthermore,
it has proven to be a useful starting point for the synthesisof a large
number of other cyto-toxic molecules. We present the synthesisand characterization
of Pt-dione. FT-IR, NMR, UV-vis and X-ray dataare presented.
COLLEEN WALL: VIRGINIA MILITARY INSTITUTE
SYNTHESIS OF PYRAZOLES USING A 3,4-METHYLENEDIOXYPHENYL VINAMIDINIUMSALT
CO-AUTHOR: DR. WADE BELL
A new 3,4-methylenedioxyphenyl vinamidinium salt was prepared by theVilsmeier
reaction. This vinamidinium salt was allowed to react withvarious monosubstituted
hydrazines to form pyrazoles. Several of thesepyrazoles were tested
against gram-positive and gram-negative bacteria.
STEFAN WIESE: HAMPDEN-SYDNEY COLLEGE
SYNTHESIS OF INTERMEDIATES FOR A SOLID PHASE BAYLIS-HILLMAN
CATALYST
CO-AUTHOR: DR. PAUL H. MUELLER
Work toward the synthesis of a new solid-state, asymmetric catalystfor
the Baylis-Hillman reaction was carried out. (The Baylis-Hillmanreaction
is a useful reaction for carbon-carbon bond formations.) Theultimate
goal of this project was to covalently bond a small molecularentity,
the actual catalyst (3-(hydroxy(phenyl)methyl)-5-azabicyclo[3.30]octane),to
a large polymer-bead solid support. The final product should providea
robust catalyst. The solid-state character of the catalyst shouldsimplify
the separation of the catalyst from the products of the Baylis-Hillmanreaction
and make the catalyst reusable. Several intermediates in thissynthesis
were prepared.
MOLLY C. EVERNGAM, NAUSHEENA BAIG, JAIME L. HEIMBEGNER: SWEET BRIARCOLLEGE
SYNTHESIS OF 3-BENZYLIDENEPHTHALIDE ANALOGS
CO-AUTHOR: DR. JOHN J. BECK
(Z)-Ligustilide, a bioactive component of several medicinal herbs ofLigusticum
species, contains an electrophilic site that is purportedto be responsible
for the molecule's bioactivity. This reactivity hasprompted the investigation
of 3-benzylidenephthalide, a simpler versionof (Z)-ligustilide. Successful
bioactivity testing of 3-benzylidenephthalidehas led to structure-activity
relationship (SAR) studies of an entirefamily of benzylidene analogs
in an effort to improve the bioactivityof this class of compounds. The
results of the syntheses of these compoundswill be reported.
SANDY K. HAN: CHRISTOPHER NEWPORT UNIVERSITY
ORGANO-SILICATE NANCOMPOSITES FOR THE REMOVAL OF 2,4-DICHLOROPHENOLFROM
AQUEOUS MEDIA
CO-AUTHORS: VALERIE JOHANSEN, BRIAN BISHOP AND DR. TAREK ABDEL-FATTAHDichlorophenol's
(DCPs) are organic pollutants that are used for disinfectants,herbicides,
chlorination of water, and anitiseptics. Continuous contactto DCP results
in kidney and liver damage. The purpose of this experimentis to study
the removal of 2,4-dichlorophenol (DCP) from aqueous solutionsby using
several nanocomposite materials as adsorbents such as MCM-41,MCM-48,
MCM-50, and HMS. DCP concentrations were determined using aHelios UV-Vis
spectrophotometer at 284.4nm. Concentrations were calculatedusing a
standard curve derived from spectrophotometry analysis of known2,4-DCP
concentrations. As temperature increased, an increased amountof DCP
was adsorbed when using MCM-41; however, the absorption observedwith
the MCM-50 was basically independent from the temperature, andMCM-48
and HMS absorbed less DCP as temperature increased. All absorbentssuccessfully
removed DCP over 90 percent.
SETH R. BRUNNER: VIRGINIA MILITARY INSTITUTE
6- ALKYLSALICYLIC ACIDS FROM AN ANT IN THE GENUS CREMATOGASTER
CO-AUTHORS: DR. T. H. JONES, VMI; D. W. DAVIDSON, DEPARTMENT OF BIOLOGY,UNIVERSITY
OF UTAH
The chemical defenses of ants in the world-wide genus Crematogasterhave
been studied for many years. Many species in this genus producean array
of unsaturated aldehydes and ketones that serve as electrophiliccontact
poisons in their venom glands. Other species produce furanocembranediterpenes
in their Dufour's glands as defensive chemicals, and stillother species
(cf. C. diformis) produce alkyl phenols and resorcinolsin their metaplural
glands. The elucidation and synthesis of a set of6-alkylsalicylic acids
from a related species collected in Brunei willbe described. These compounds
are lower homologs of the well known andhighly active anacardic acids.
KATHLEEN MARIE WILSON: SWEET BRIAR COLLEGE
ANALYSIS OF THE MICRONUTRIENTS COPPER AND ZINC IN A COMMERCIAL
ORCHARDAND VINEYARD BY ATOMIC ABSORPTION SPECTROSCOPY
Each year commercial farms spend thousands of dollars on fertilizersto
increase production so the value of the data collected in this labis
easy for the students to appreciate and the monitoring of micronutrientson
the lands of a local commercial agricultural site can be an ongoinglongitudinal
study, thus allowing the introduction of these sort ofstudies to undergraduate
students. Additionally, this lab is easilyadaptable to many laboratory
environments due to the fact that thereare 6 micro-nutrient and 3 macro-nutrient
elements that can be identifiedby AAS. So it is likely that a suitable
lamp is already on hand to beginadapting this lab to local laboratory
conditions. Funded by an NSF-CCLIgrant Award Number DUE-0126982.
JONATHAN COX: HAMPDEN-SYDNEY COLLEGE
POSSIBLE IN VITRO METABOLISM OF DANTHRON
CO-AUTHOR: DR. H. J. SIPE
Cassia senna is an herb that is currently being used as an active ingredientin
laxatives. The structure of senna is very similar to that of danthron.The
senna glycosides are very likely to hydrolyze in the gastrointestinaltract
to release danthron. The literature oxygen consumption and ESRspectroscopy
experiments were performed on danthron to compare the resultswith those
from experiments with phenolphthalein. The results of danthronstudies
were inconclusive. The oxygen consumption experiments were notreproducible,
but there are signs that indicate that oxygen is beingconsumed in the
danthron system. The ESR spectroscopy experiments showedno sign of the
formation of free radicals in the danthron system, butwould not have
been able to detect short-lived species.
MICHAEL D. WOLTER: ROANOKE COLLEGE
THE SYNTHESIS, PURIFICATION, AND CHARACTERIZATION OF SEVERAL
HIGHLY-FLUORINATED1,1'-BIS(TETRAFLUOROPYRIDYL)FERROCENE DERIVATIVES
CO-AUTHORS: DR. PAUL DECK AND DR. W. GARY HOLLIS, JR.
The purpose of this research was to synthesize and purify several highly-fluorinatedferrocene
derivatives and characterize each by solubility characteristicsin organic
and fluorous solvents. 1,1'-Bis(tetrafluoropyridyl)ferrocenewas synthesized
from pentafluoropyridine, sodium cyclopentadienide,and iron(II) bromide
followed by purification with alumina filtrationand recrystallization.
Alkoxy derivatives of 1,1'-bis(tetrafluoropyridyl)ferrocenewere synthesized
using this starting material and perfluorinated alcohols.The alcohols
added to four positions on the starting material; all positionswere
ortho to the nitrogens on the pyridine rings. The alkoxy derivativeswere
purified by recrystallization. 1H and 19F NMR were used to characterizethe
compounds. X-ray crystallography was used to characterize one ofthe
derivatives. Partition coefficients between toluene and perfluoromethylcyclohexanewere
determined for the compounds using UV/visible spectroscopy.
ANA CIRIC: SWEET BRIAR COLLEGE
ISOTOPIC LABELING STUDY OF A VIABLE HOMOGENEOUS CARBON DIOXIDE
REDUCTIONCATALYST: THE FORMATION OF COMPLEX MOLECULES USING CO2 AS THE
CARBONSOURCE
CO-AUTHOR: NICOLE CROWDER
The first electrocatalytic reduction of carbon dioxide resulting inthe
formation of multiple carbon-carbon bonds has been accomplishedin our
labs. Simple products such as oxylate as well as a variety oflarger
products such as benzoic acid derivatives, phthalic acid derivatives,large
alcohols and ketones have been observed by GC/MS analysis andpositively
identified. Furthermore, carbon dioxide has been confirmedas the carbon
source by use of 13CO2 and 13C-NMR. The catalyst is apalladium based
polymer and has multiple active sites thus allowingfor the simultaneous
reductions of multiple carbon dioxide molecules.The experimental design
and the x-ray structure of the catalyst arepresented.
MEGAN C. VIA: ROANOKE COLLEGE
FIELD TEST FOR IDENTIFYING O-CHLOROBENZALMALONITRILE (CS TEAR
GAS) ANDOMEGA-CHLOROACETOPHENONE (CN TEAR GAS) AND MACE BRAND DEFENSE
SPRAY
Tear gases are largely used by law enforcement personnel as a riot controldevice.
In cases dealing with improper use, it is important to knowwhich tear
gas was used in order to use as evidence in a court of law.To date,
there have been no field tests developed to identify the chemicalused
in an assault of this sort. In this research, a field test wasdevised
which could be used by medical or law enforcement personnelto screen
for the presence of o-chlorobenzalmalononitrile (CS tear gas),omega-chloracetophenone
(CN tear gas), and Mace brand Triple Actiondefense spray. In addition
to the field test, a proper collection methodwas devised and a primary
instrument for laboratory analysis was found.
KATHRYN DAVIS: SWEET BRIAR COLLEGE
PURIFICATION OF MODIFIED AND UNMODIFIED OLIGONUCLEOTIDES
Oligonucleotides, short strands of DNA or RNA, can be synthesized chemicallyin
the lab. Oligonucleotides have been tested as antisense drugs, andhave
been shown to regulate the expression of disease. The mechanismsof antisense
drugs have been studied, but there is still a questionas to which mechanism
these drugs use. Modifications to the DNA oligonucleotideshelp these
potential drugs to last longer in the cell. For these reasons,it is
important to make oligonucleotides more cost effective so thatwe can
better understand their mechanisms. My honors summer researchproject
was focused on increasing the efficiency of the purificationstep in
the production of monothiophosphate DNA in comparison to non-modifiedoligonucleotides
of the same and different sequences.
MATTHEW POFERL: ROANOKE COLLEGE
THE DETERMINATION OF THE PARTITION COEFFICIENTS OF SEVERAL HIGHLY-FLUORINATED,ALKOXYSUBSTITUTED
BISARYLFERROCENE DERIVATIVES
CO-AUTHORS: DR. GARY HOLLIS, DR. PAUL DECK
The preparation of seven fluorinated derivates of ferrocene was accomplishedin
order to determine their partition coefficients between two solventenvironments,
one fluorous and one organic. Between toluene and perfluoromethylcyclohexane,the
partition coefficients, Concentration Perfluoromethylcyclohexane/ConcentrationToluene,
were found to be 0.0539 for 1,1'-bis(2,2,3,3,4,4,4-heptafluoro-1-butoxytetrafluorophenyl)ferrocene(3),
0.3676 for 1,1'-bis(2,2,3,3,4,4,5,5,6,6,7,7,7-tridecafluoro-1-heptoxytetrafluorophenyl)ferrocene(4),
0.8191 for 1,1'-bis(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluoro-1-octoxytetrafluorophenyl)ferrocene(5),
1.1384 for 1,1'-bis(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-heptadecafluoro-1-nonoxytetrafluorophenyl)ferrocene
(6), 2.0962 for 1,1bis(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-nonadecafluoro-1-decoxytetrafluorophenyl)
ferrocene (7), and 1.6752for 1,1'-bis(2,2,3,3,4,4,5,5,6,6, 7,7,8,8,9,9,10,10,11,11,11
-heneicosafluoro-1-undecoxytetrafluorophenyl)ferrocene(8) by Ultraviolet/Visible
Spectrophotometry.
ADRIA G. MANNON: ROANOKE COLLEGE
DETECTING THE PRESENCE OF CAPSAICIN: A FIELD TEST, COLLECTION
METHOD,AND LAB TECHNIQUE
Prior to this research project, no tests were available to distinguishamong
and identify certain incapacitant sprays, specifically pepperspray.
A method was developed to collect and easily test a sample ofincapacitant
spray used on a person for the presence of capsaicin, theactive ingredient
used in pepper spray. A small kit was devised thatwould contain the
chemicals needed to perform specific color tests,through which preliminary
identifications can be made. Once collected,the sample can be transported
to a lab and tested more definitivelyusing gas chromatography/mass spectroscopy.
After being verified, thisevidence of the use of pepper spray could
be used to secure an indictment.
TINH NGUYEN: MARY WASHINGTON COLLEGE
AN INVESTIGATION INTO THE SELF-ASSEMBLY OF MIXED ORGANIC MONOLAYERSUSING
SCANNING TUNNELING MICROSCOPY
CO-AUTHOR: DR. LEANNA C. GIANCARLO
Scanning Tunneling Microscopy (STM) is an indispensable tool for obtaininginformation
on the packing order of molecular adsorbates on surfaces.Although STM
has been used to probe a rapidly growing list of organicmaterials on
surfaces, the mechanism of their 2-D assembly is stillunder debate.
It is thus of great theoretical and experimental interestto identify
the factors that control the organization of these weaklybound systems.
In this project, the self-assembly of organic mixtures(octadecanoic
acid and tetracosanoic acid in phenyloctane) physisorbedon graphite
was investigated. From the STM images, it can be seen thatmolecular
adsorption is driven by the complex interactions between surface-moleculeand
molecule-molecule. Longer chain molecules were noted to adsorb preferentiallydue
to higher heats of adsorption, resulting in a greater affinity forthe
graphite surface.
VALERIE L. JOHANSEN: CHRISTOPHER NEWPORT UNIVERSITY
ISOTHERM STUDY OF SURFACTANT MODIFIED ADSORBENTS FOR REMOVAL
OF 2, 4-DICHLOROPHENOLFROM AQUEOUS SOLUTIONS
CO-AUTHORS: SANDY K. HAN AND DR. TAREK ABDEL-FATTAH
Dichlorophenols (DCP) are used mainly in wood preservation treatmentsas
well as in the production of herbicides and antiseptics. The focusof
the study is primarily on the amount of adsorbent needed to removethe
maximum amount of DCP from solution. The adsorbents used includesynthetic
molecular sieves, 5A and 13X, naturally occurring zeolites,Clinoptilolite
and Chabazite, as well as activated carbon, aluminumoxide and silica
gel. Each adsorbent was modified with dodecylamine(DDA) surfactant to
increase adsorbent capabilities. The modified activatedcarbon was needed
in the least amount of all the adsorbents for maximum2,4-DCP removal,
which was almost 100% after 48 hours. Approximately2.0g of Chabazite,
5A, 13X, and aluminum oxide was required for maximumremoval, with Chabazite
removing the most, 75%. There were no pointsof maximum 2,4-DCP removal
for Clinoptilolite and silica gel, and bothof these materials were able
to remove nearly 50% of the 2,4-DCP after48 hours.
HEATHER J. BROWN: VIRGINIA MILITARY INSTITUTE
MAGNESIUM-DEPENDENT DANTROLENE TOXICITY IN PARAMECIUM TETRAURELIA
CO-AUTHOR: DR. WADE BELL
Paramecium tetraurelia are unicellular eukaryotes with excitable ciliatedmembranes
that function partly based on calcium regulation within thecell. Because
caffeine stimulation of Paramecium results in an increasein intracellular
calcium concentration, it is possible that a calciumchannel similar
to the ryanodine receptors found in skeletal musclemay be involved in
calcium mobilization. We examine the effects of theryanodine receptor
antagonist, dantrolene, on Paramecium tetraurelia.When magnesium was
not present in the buffer, dantrolene toxicity wasabolished. It is possible
that magnesium amplifies the effect of dantroleneon ryanodine-like receptors
in Paramecium resulting in toxicity. Alsoof interest is the lack of
protection from dantrolene-mediated toxicityin the mutant eccentric.
Lastly, initial experiments indicate that dantrolenedoes not affect
the ability of caffeine to increase intracellular calciumlevels.
TSAI YANG-HSI: VIRGINIA MILITARY INSTITUTE
ANTIOXIDANT FROM CORTEX MOUTAN HAS THE POTENTIAL TO TREAT DISEASES
WHICHINVOLVE THE APOPTOTIC PROCESS
Dietary intake of antioxidants is now believed to reduce the risk fromseveral
chronic diseases believed to be caused by oxidative stress inducedby
reactive oxygen species (ROS). Numerous traditional Chinese herbalmedicines
have been proven to possess strong scavenging effects againstROS. Previous
experiments using the ferric reducing antioxidant potential(FRAP) assay
has confirmed that Cortex moutan, an herb used in Chinesetraditional
medicine, possesses a high antioxidant potential. Currentstudies of
the aqueous extracts on the Jurkat cells, in tissue culture,have shown
that Cortex moutan is able to prevent the process of capthesinB induced
apoptosis in these cells. These results indicate that a chemical(s)in
the Cortex moutan extract might be significant in treating diseaseswhich
involve the apoptotic process.
SEANA MCGUFFEY: SWEET BRIAR COLLEGE
CONTEXT DEPENDENT LEARNING USING AVERSIVE STIMULI IN EASTERN
AND WESTERNHOGNOSE SNAKES (HETERODON PLATYRHINOS AND HETERODON NASICUS)
Pavlovian conditioning is one of the simplest ways in which organismsform
associations between two stimuli- an arbitrary event, or conditionedstimulus
(CS), and a biologically relevant even, or unconditioned stimulusUS).
Contextual conditioning is a more specific form of Pavlovian conditioningthat
uses environmental cues such as the CS paired with a biologicallyrelevant
event. The capacity for snakes to learn was tested using Pavloviancontextual
conditioning and a tactile stimulus to observe their anti-predatorbehaviors.
There were ten conditioning trials and three test trialsin which both
groups were given access to a grass and an asphalt context.Data analysis
is ongoing, but preliminary results for latency to immobilityand immobility
duration indicate that learning in snakes has occurredin the paired
group.
JOSHUA FOX: VIRGINIA MILITARY INSTITUTE
AROMATASE INHIBITOR TREATMENT CAUSES SEVERE DEVELOPMENTAL AND
NEUROLOGICALDEFECTS IN ZEBRAFISH EMBRYOS
The aromatase inhibitor 4-hydroxyandrostenedione (4-OH-A) is a steroidthat
blocks conversion of testosterone into estradiol by binding irreversiblywith
aromatase. These studies are aimed at determining its effects ondevelopment
in zebrafish embryos by blocking estrogen production. Themost effective
dose with minimal deaths was found to be 50 µM. When50 µM concentrations
were used, the embryos still appeared healthy,but had heart rates nearly
half that of the control group and had asignificant reduction in body
length. Also, after 48 hours in 4-OH-Asolution at 50 µM, the embryos
appeared nearly 24 hours behind the controlin development. Future studies
will involve histological analysis of4-OH-A treated retinal and brain
tissues and to also investigate itsrole in causing the spinal abnormalities
observed.
MATTHEW CROWE PARK: VIRGINIA MILITARY INSTITUTE
CLOMIPHENE'S INHIBITION OF DEVELOPMENTAL EFFECTS ON ZEBRAFISH
Recent research has shown estrogen plays antioxidant, trophic, and neuroprotectiveroles
in humans. In order to help understand its role in development,zebrafish
were exposed to varying concentrations of clomiphene, a selectiveestrogen
receptor modulator. Clomiphene blocks estrogen's ability tobind to its
receptor, and therefore cannot influence zebrafish maturation.Clomiphene
at 3.5 uM concentration caused a significant delay in neuralgrowth and
retina development. Histological studies showing small andunderdeveloped
retinas reinforced behavioral and morphological observations.Further
studies are directed to determine if estrogen can rescue retinadegeneration
caused by clomiphene. If this proves true, the findingscould help lead
to a cure for retinopathies and other neurological diseases.
CHI PHAM: RANDOLPH-MACON WOMAN'S COLLEGE
AN IMPROVED METHOD FOR STUDYING THE ENZYME-CATALYZED OXIDATION
OF GLUCOSEUSING LUMINESCENT PROBES
Kinetics of enzyme-catalyzed reactions is an important topic being taughtand
studied in chemistry at the undergraduate level. The purpose ofthis
research was to develop a new technique for the investigation ofone
of these reactions, specifically the oxidation of glucose by oxygenin
the presence of glucose oxidase. By applying this new method usingluminescent
complexes as probes, oxygen concentration may be determinedas a function
of time during the reaction. The kinetic parameters calculatedusing
this method were in good agreement with the accepted values. Thevalues
for Km and kcat were 38 ± 5 mM, and 2.3 ± 0.5 µmol/min/mg enzyme,respectively.
JESSICA RAMSEY: SALEM COLLEGE
VARIOUS KARENIA BREVIS CLONES EXHIBIT CHEMOTAXIS
CO-AUTHORS: JESSICA RAMSEY, DANIEL KAMYKOWSKI, EDWARD J. MILLIGAN, BLAKESCHAEFFER,
LAURIE MCKAY, AND GEOFF SINCLAIR
Ten clones of Karenia brevis, a harmful algal bloom species found throughoutthe
Gulf of Mexico, were tested for chemotaxis. Chemotaxis, directionalmovement
toward a chemical nutrient, was measured using microcapillariescontaining
enriched media or filtered seawater. The microcapillarieswere suspended
in a darkened box with one end submerged in a 96-wellplate containing
K. brevis culture. A 30-minute incubation period allowedcells to swim
up into the microcapillaries. The microcapillaries werethen emptied,
and the cells that had migrated were counted using a CoulterMultisizer.
The Jacksonville and Apalachicola clones displayed a statisticallysignificant
preference for the enriched nutrient medium over unenrichedseawater.
Characterization of chemotactic behavior in Karenia brevisprovides insight
into how these unarmored dinoflagellates find and utilizenutrients in
situ.
JARED D. HEFFRON: HAMPDEN-SYDNEY COLLEGE
ISOLATION AND COMPARISON OF ACTINOMYCETES FROM TWO DIFFERENT
FORESTSOILS
Actinomycetes were isolated and cultivated from soils from a deciduousforest
and a pine stand. Soil samples were taken from different strataand horizons
in each stratum from each of the two sites. Data concerninglocation,
moisture content, and pH of each sample were analyzed, andnumbers of
bacteria present in each sample were determined using colonyforming
units (CFUs) for each sample following serial dilution. Therewere no
differences found by hypothesis of CFUs. However, the typesof colony
growth and frequency of colony types was different betweenstrata. Analysis
of actinomycete using CFU counts may be inadequateto accommodate the
growth of the bacteria. Further research will includecompetition studies
between isolated actinomycetes from different strataand different sites
and other lab strains.
ELLENA BETHEA: SWEET BRIAR COLLEGE
NEUROANATOMICAL EFFECTS OF GENE MANIPULATION USING AAV IN KNOCKOUT
MICECO-AUTHORS: DR. SONOKO OGAWA, DR. SERGEI MOUSSATOV, DR. DONALD W.
PFAFF,ROCKEFELLER UNIVERSITY
Estrogen receptors a and b have been found to play a role in regulatinghormone
levels in various brain regions. While the two types of estrogenreceptors
are distributed in some of the same brain regions, there arestill several
regions in which their distribution fails to overlap.Previous research
has shown that the activation of ER-b in knockoutmice inhibits aggression
levels. In these experiments, estradiol wasreintroduced by way of adeno-associative
virus ER-b. This project seeksin part to investigate the role of oxytocin,
a hormone known to havean inhibitory effect on aggression, in estrogen
receptor activationof the paraventricular nucleus and medial preoptic
area of the micebrain. The presence of oxytocin was measured by reverse
transcriptasePCR DNA amplification and immunostaining of bERKO, aERKO,
mutant, andwild type brain samples.
KATHERINE KIRKWOOD: SWEET BRIAR COLLEGE
EMULSION SYNTHESIS OF LARGE POROUS PARTICLES FOR DRUG DELIVERY
BY INHALATION
CO-AUTHORS: N. TSAPIS, E.R. DUFRESNE, AND D.A. WEITZ, HARVARD UNIVERSITY
Drug delivery by inhalation has the potential to greatly improve medicaltreatments.
Large Porous Particles (LPPs) have useful physical propertiesfor inhalation
because the immune system cannot easily target and eliminatethem. The
formation of LPPs and the formation mechanism's dependenceon particle
interactions and drying methods were studied using scanningelectron
microscopy and confocal microscopy techniques; we show thatLPPs can
easily be produced in an emulsion synthesis process.
KARISHMA RAMESH RAJANI: RANDOLPH-MACON WOMAN'S COLLEGE
THE DETERMINATION OF THE HEAT CAPACITIES OF LIQUIDS WITH THERMAL
LENSCALORIMETRY
CO-AUTHORS: JAMIE R. BOYCE AND DR. KURT SEIDMAN
The application of thermal lens calorimetry to the determination ofthe
heat capacities of liquids has been reported in the literature.The method
is faster than the more traditional calorimetric techniques,but the
accuracy was poor. This paper describes two different approachesthat
could be used to calibrate the method: a "power" calibration anda "thermal
bloom" calibration. The "power" calibration yields reproduciblesystematic
errors that are more than likely a result of solvent-dyeinteractions.
However, the "thermal bloom" calibration produces resultsthat rival
those obtained with more traditional calorimetric methods.It has been
observed that the slopes of the calibration lines obtainedwith the "thermal
bloom" procedure are nearly constant with respectto dye concentration.
This result, if borne out by further studies,has the potential to lead
to considerable simplifications in the calibrationprocedure.
AMBER E. SOLIVAN: SWEET BRIAR COLLEGE
CONSTITUTIVELY ACTIVE AKT INDUCES CELL CYCLE ARREST IN PRIMARY
HUMANFORESKIN KERATINOCYTES
CO-AUTHORS: BARRY R. THRASH, DEPARTMENT OF BIOCHEMISTRY/BIOPHYSICS,DENNIS
J. MCCANCE, DEPARTMENT OF IMMUNOLOGY/MICROBIOLOGY, UNIVERSITYOF ROCHESTER
SCHOOL OF MEDICINE AND DENTISTRY
Keratinocytes are the major cellular component of the stratified epitheliumwhich
forms human skin. Following mitotic division, a single basal cellmoves
upward out of the basal layer and exits cell cycle The cell progressesthrough
four strata, reaching its most differentiated state in the cornifiedlayer.
Throughout the differentiation process and movement through thestrata,
cells receive various signals to induce different processesof the differentiation
program. The regulatory mechanisms of these pathwaysare still unclear.
One such pathway in keratinocyte differentiationis protein kinase B/Akt.
Akt is a serine/threonine protein kinase thatis activated through phosphorylation
at residue Thr308 by PDK1, andat Ser473 by an unknown kinase. This study
focuses on cell proliferationexamining the effects of constitutively
active Akt (myrAkt) on cyclingcells.
MARLENE PARISER: RADFORD UNIVERSITY AND VIRGINIA POLYTECHNIC INSTITUTE
EFFECT OF INTRACEREBRO VENTRICULAR INJECTION OF UROCORTIN IN
OBESE ANDANOREXIC MODELS
CO-AUTHORS: M. A. CLINE, A. Y. KUO, D. M. DENBOW, P. B. SIEGEL
The effect of intracerebroventricular (i.c.v.) injection of urocotrinon
feed intake in 12 male anorexic and 12 male obese chicken modelswas
determined. Injections were made via a stainless steel guide cannulathat
was surgically implanted into the right lateral ventricle of eachchicken.
Feed intake was monitored at 15-min intervals through 180-minpostinjection.
The i.c.v. injection of urocortin caused a linear decreasein feed intake
in obese chickens from 45 to 60 min postinjection. Noresponse was observed
in the anorexic model. These results suggest thaturocortin acts within
the central nervous system of obese chickens todecrease feed intake.
MONIQUE BIRMIEL: RANDOLPH-MACON WOMAN'S COLLEGE
QUANTIFICATION OF ANTIOXIDANTS VIA THE FRAP ASSAY
Antioxidants, in today's health conscious society, have come to theforefront
of our attention. Many nutritional supplements contain antioxidants,but
as these supplements are not regulated, it is difficult to assessthe
value of their claims regarding antioxidant strength. In this project,several
different supplements were tested to determine the power ofthe water
soluble antioxidants present in their pills. The ferric reducingantioxidant
power (FRAP) assay was used to measure and compare the antioxidantor
reducing power of each of the supplements. Our results indicatedthat
vitamin C was the strongest antioxidant tested. Because supplementssold
by many of these companies are not standardized, further studiesto quantify
the differences between supplements need to be done.
Environmental Science
MARIE D. TRIPLETT: CHRISTOPHER NEWPORT UNIVERSITY
RESPONSE OF SOIL RESPIRATION TO TEMPERATURE IN PERMAFROST REGIONS OFTHE NORTHERN BOREAL FOREST IN ALBERTA, CANADA
CO-AUTHORS: WHITNEY CARROLL AND GARY WHITING
Due to global warming, permafrost regions in the high northern latitudeshave started to melt. Typically, soil respiration doubles for every10C increase in soil temperature. In this experiment, the effect oftemperature on soil respiration was determined. Soil samples were collectedfrom permafrost regions in the northern boreal forest of Alberta, Canada,placed in incubation jars, and incubated in increments of 10C between0 to 20C. A LiCor 6200 was used to measure the rate of respiration ineach jar. An Arrhenius equation was used to calculate Q10 values foreach soil type. Q10 values ranged from 1.346nmolCO2g-1h-1 to 5.872 nmolCO2g-1h-1for total soil. With increasing temperature, the CO2 emission may significantlyincrease due to the elevated respiration rates of the soil microbes.
WHITNEY CARROLL: CHRISTOPHER NEWPORT UNIVERSITY
REMOTE SENSING INDICES AND RELATIONSHIP TO METHANE AND CARBON
DIOXIDEEXCHANGE IN MELTED PERMAFROST SITES OF NORTHERN ALBERTA, CANADA
CO-AUTHOR: DR. GARY WHITING
Permafrost in the high latitude region of the northern hemisphere maymelt
in response to global warming and significantly alter how carbonis processed
and stored in these regions. Once melting occurs, soilcan become saturated
and affect the production and emission of methaneand carbon dioxide
(very potent greenhouse gases) which can feedbackto promote more global
warming. Remote sensing technology can potentiallybe used to detect
these changes in carbon cycling by relating vegetationchanges affected
by melting to reflectance indices. We related reflectancemeasured by
hand-held radiometers to methane and carbon dioxide exchangesin the
same melt plots. Normalized difference vegetation index (NDVI)ranged
from 0.55 to 0.86. Edge to middle NDVI differences parallel themethane
and carbon dioxide exchanges for the same regions.
CHRISTY L. MICHAELS: SWEET BRIAR COLLEGE
CHEMICAL AND BIOLOGICAL EVALUATION OF THE BUFFALO RIVER WATERSHED,
AMHERSTCOUNTY, VIRGINIA
CO-AUTHORS: JENNIFER D. BRAGG, CARRIE L. THOMAS, LEAH K. REEDY, DR.DAVID
R. ORVOS
During the summers of 2002 and 2003 the water quality of the BuffaloRiver
Watershed in Amherst County, VA was evaluated. Predominant landuse types
in this watershed include deciduous forest, pasture and hay,mixed forest,
and evergreen forest. Chemical and biological parameterswere tested
including nitrogen, reactive phosphorous, total phosphorous,fecal and
total coliforms, turbidity, and macroinvertebrate diversity.Mill Creek
Lake, a drinking water reservoir for Amherst County and theSweet Briar
community, exhibited high concentrations of nitrogen, phosphorous,fecal
coliforms, and Escherichia coli in the sub-watershed. A MicrosoftAccess
database was developed to facilitate data analysis. Currentlythe database
is being merged into the ESRI ArcGIS geographical informationsystem
to allow more in-depth analysis.
JEREMIAH J. FREEMAN: CHRISTOPHER NEWPORT UNIVERSITY
POREWATER METHANE CONCENTRATIONS IN MELTED PERMAFROST ZONES
IN NORTHERNALBERTA, CANADA
CO-AUTHORS: MICHAEL HARRISON, WHITNEY CARROLL, MARIE TRIPLETT, GARYWHITING
Permafrost zones in northern Alberta show little, if any, methane emission,a
greenhouse gas. However, as the permafrost begins to melt, methaneproduction
increases in the saturated peat leading 100 to 200 timesgreater methane
emissions. Measuring porewater methane concentrationthroughout the melted
permafrost (edge, halfway, and middle zones) cangive a better understanding
of methane production as the melt regionages. The edge of the feature
is the recently melted permafrost withthe oldest melted region located
in the middle. This past summer resultsare similar to the previous year
with concentrations reaching 162µMin the edge region and about 140µM
in halfway regions. Overall trendsshow an increase in concentration
at the start of the water table continuallyincreasing with depth.
DANIEL C. MILZ: ROANOKE COLLEGE
TREE RING ANALYSIS OF CANADIAN HEMLOCK (TSUGA CANADENSIS) FOR
CLIMATERECONSTRUCTION AT MOUNTAIN LAKE, VIRGINIA
CO-AUTHOR: JON C. CAWLEY
Mountain Lake in Giles County, Virginia is a small, oligotrophic, freshwaterlake
in the Appalachian highlands. The origins and cyclicity of thelake have
been studied via sediment core extending back 6100 years.Lake levels
are dependent upon local climatic conditions; the lake providesa record
of regional climatic change. Shindell et al. has modeled amechanism
of climate response of the Maunder Minimum. For the southernAppalachians
the model predicts colder, drier conditions. These projectionsapparently
coincide with lake conditions during minima event(s). Treecore were
taken from 44 Canadian Hemlock trees at Mountain Lake. Analysisof ring
widths showed positive correlation with regional precipitationand temperature
records. This correlation has potential for supportingevidence of the
solar minima driven effects in the southern Appalachians.
History
ROBERT WILLIAM SERIG: VIRGINIA MILITARY INSTITUTE
POTENT ECONOMICS: NINETEENTH-CENTURY WHISKEY DISTILLING IN ROCKBRIDGEAND
AUGUSTA COUNTIES
Whiskey was a great enterprise in the Valley of Virginia during thenineteenth
century, rising from the large-scale production of grains.Its production
and trade stimulated other industries that supplied orrelied on whiskey
as a source of income. Through whiskey sales, tradepatterns emerged
between the valley and outside parts. As taxes andlaws were passed to
regulate the sale of whiskey in the later half ofthe 1800s, many smaller
distillers closed their businesses. Whiskeyproducers played an important
role in their local economies and supportedtheir communities. Whiskey,
the product of grains, was once a majorindustry in the Great Valley
of Virginia, and its influences were presentthroughout valley life.
MARK EHLERS: JAMES MADISON UNIVERSITY
FROM GREENHORN TO VETERAN: THE STORY OF THE 10TH VIRGINIA INFANTRY
A case study of the 10th Virginia Infantry suggests that the life-cycleof
a Civil War regiment is not as clearly defined as Paddy Giffith suggestsin
his book, Battle Tactics of the Civil War. The study agrees withGiffith's
assertion that regiments entered the war as eager and enthusiastic"greenhorns"
and after a few battles evolved into a tough, competentveteran unit.
However, the study found that because of certain factorsin its own unique
evolution, the regiment never arrived at the final,gun-shy and cautious,
"old-lag" phase that Griffith argues was the inevitableresult of years
of war and mounting casualties.
ELIZABETH EAGER: SWEET BRIAR COLLEGE
MARKETING ETERNITY: POPES AND TAXES IN THE MIDDLE AGES
In many ways, the medieval Catholic Church functioned similarly to amodern,
multi-national corporation. Applying this analogy helps us understandthe
Church's relationship with other powers, such as the monarchs ofwestern
Europe. While this model demonstrates the administrative structureof
the Church, it fails to encompass the motivations behind Church policies.The
Church was not driven purely by profit, but rather by religiousideology
to secure its position as the undisputed authority in westernEurope
and to expand its influence into other regions, such as the HolyLand.
To achieve their objectives, popes often resorted to financialmeasures,
such as taxing the secular authorities. While some church/stateconflicts
arose over economics, more often the church's ideologicalobjectives
caused conflict with state powers.
DAVID A. KNIGHTING: JAMES MADISON UNIVERSITY
FOR THE CAUSE OF RELIGION: THE NORTHERN RISING OF 1569
The Northern Rising of 1569 was a brief Northern English rebellion ledby
the earls of Northumberland and Westmoreland, two Catholic noblemen,against
the government of Queen Elizabeth. The cause of this rebellionhas long
been a matter of debate. The succession to the English throne,political
tension between the Northern shires and London and Spanishmachinations
in English affairs may have had contributory roles, howeverthe deciding
factor, as shown by this essay, was religion. Religionpermeates all
aspects of the rebellion. This essay, through the useof the official
correspondence of both the English and Spanish governmentsand contemporary
accounts, establishes the argument that it is impossibleto separate
the sacred from the secular in any analysis of the NorthernRising.
ADAM JOSEPH: JAMES MADISON UNIVERSITY
THE FAILURE OF THE CENTRAL INTELLIGENCE AGENCY CULMINATING IN
THE CUBANMISSILE CRISIS
For thirteen harrowing days in October of 1962 the United States andthe
Soviet Union, two super powers over-armed with nuclear weapons,suddenly
teetered on the brink of nuclear war. Ninety miles off thecoast of Florida,
the Soviet Union was secretly arming the island nationof Cuba with nuclear
weapons. The Cuban Missile Crisis was the culminationof a series of
intelligence failures perpetrated by the CIA in Cubabetween 1959 and
1962. With the end of the Cold War and the collapseof the Soviet Union,
new information, made available by the RussianGovernment, proved that
the CIA failed completely in estimating theSoviet Union's military capability,
leading the two super powers tothe abyss of destruction.
STEPHANIE GREGORY: JAMES MADISON UNIVERSITY
BRANCH RICKEY'S PLAN FOR THE INTEGRATION OF BASEBALL
Post World War II America was a dynamic time, especially in regardsto
race relations. As soldiers fought against the racism of Nazi Germany,many
Americans on the home front started to fight against racism andsegregation.
Baseball as America's pastime appeared to be the idealplace to take
a solid stand for racial equality in America. In 1945Branch Rickey,
the president of the Brooklyn Dodgers created a planto integrate baseball
based upon a variety of widely contested motives.The most popular and
well-supported theories revolve around three possiblesources of motivation;
financial, moral and societal forces. As a team,Branch Rickey and Jackie
Robinson were victorious, and as a result baseball'sunofficial color
barrier to begin to crumble after the 1947 season.
UYEN TA: JAMES MADISON UNIVERSITY
THE BILL OF RIGHTS: WAS THE FEDERALIST ARGUMENT ACCURATE IN
PORTRAYINGAMERICAN DEMOCRACY?
Americans today regard the Bill of Rights as the most essential partof
the Constitution since it guarantees their civil liberties. But adoptionof
the bill was not simple. It is important to understand Federalists'argument
against the bill and what finally convinced them. Thomas Jeffersonhad
predicted that after the Revolution, the American democratic processwould
go downhill. When the Federal Convention was called, the purposewas
revision of the Articles of Confederation. There was no discussionof
a bill of rights, causing many Anti-federalists to oppose ratificationof
the Constitution. Federalists argued that a bill was not necessarybecause
the new federal government had no power to infringe upon therights of
citizens. But without a bill of rights, American democracywould not
have existed.
ASHLEY MIDDLETON: JAMES MADISON UNIVERSITY
"TO BE REALLY USEFUL": THE PHILADELPHIA LADIES ASSOCIATION
My paper focuses on the contributions that women of the PhiladelphiaLadies
Association made to the Revolutionary war effort. I discuss thekey figures,
including Esther De Berdt Reed and Sarah Franklin and howthey acted
as the chief leaders in this all female charity organization.The Ladies
Association boosted the confidence and morale of women inthe colonies,
giving them the opportunity to donate both their timeand efforts to
the Revolution.
MATTHEW HERMAN: JAMES MADISON UNIVERSITY
RIDING THE PALESTINE TIGER: HARRY S. TRUMAN AND THE RECOGNITION
OF ISRAEL
The buck stopped with Harry S. Truman. During his presidency, Trumanfaced
some of the most difficult issues any leader has ever had to face,including
the recognition of Israel. Decisions, solutions, and resolutionsended
with Truman. His choices were deliberate, and made with consciousresolve.
The pious Baptist never neglected his religious upbringingin making
some of the toughest choices any president has ever made.Truman acted
on what he thought was moral and right, primarily basedon his religious
background and familiarity with the Bible.
DAVID BEEHLER: VIRGINIA MILITARY INSTITUTE
EXODUS FROM EGYPT: A RE-EXAMINATION OF THE HISTORICAL PLAUSIBILITY
OFTHE BIBLICAL EXODUS
It is easy to dismiss the notion and concepts of the Biblical Exodusas
a mere story. However, there are certain aspects that dealing withthe
Exodus, which present a very strong case for its historical plausibility.Two
of these areas are: the historical dating of the Exodus and possibilityof
Moses as a prince of Egypt. This paper's focus is not to prove theexact
dates of the Exodus, nor is it an attempt to prove that the BiblicalMoses
was a prince of Egypt. However, this paper will attempt to provethat
these Biblical notions of the Exodus have much more historicalcredibility
than has been allotted to them. Whether fact or myth, thesetwo concepts
of the Biblical Exodus are very plausible.
Interdisciplinary Studies
ALIYA GIFFORD: RANDOLPH-MACON WOMAN'S COLLEGE
AN INQUIRY-BASED ONLINE CURRICULUM FOR K-8 SCIENCE TEACHERS
CO-AUTHORS: DR. PETER SHELDON, DR. PEGGY SCHIMMOELLER, GEMMA GRIFFIN,WEIQIN
BAO
Randolph-Macon Woman's College faculty in collaboration with undergraduatestudents
have worked on a curriculum development and research projectin which
we created on-line resources for assisting teachers to includeinquiry-based
science in grades K-8. Science as inquiry fosters problem-solving,creativity,
and independent learning, resulting in students who performat a higher
level of understanding than their peers in more textbook-basedscience
classes. We created lesson plans, wrote accurate content toaccompany
lessons, and videotaped children engaged in experiments. Otherresources
are being developed, and all are part of our website: Thenew Science
Teacher. The website is designed to assist pre-service teachersmeet
state teaching standards in the sciences, and is expected to serveas
a rich science resource for in-service teachers, many of whom mayhave
little background in science.
JENNIFER APRIL: NEUMANN COLLEGE
THE GREENING OF CORPORATE AMERICA: THE CONNECTION BETWEEN BUSINESS
ANDENVIRONMENTALISM
This presentation will reveal the connection between business and environmentalissues.
I argue that the business world and the environmental movementshare
many concerns. This examination reveals the impact of environmentalconsiderations
for any successful business endeavor. An examinationof how environmental
preservation and restoration relies upon the businessworld for continued
future success concludes the presentation.
DENADA RAMNISHTA: NEUMANN COLLEGE
GOING INTERNATIONAL: CULTURAL CONSIDERATIONS WHEN DOING BUSINESS
ABROAD
This presentation will explain various challenges that global corporationsface
when doing business abroad. Different management orientations andtheir
costs and benefits will be examined. I will reference examplesof various
business cases and different cultural perspectives relatedto them. I
will argue that cultural adaptation and communication formone of the
strongest bases for a successful business endeavor.
MICHELLE REESE: JAMES MADISON UNIVERSITY
MUSIC IS REVOLUTION: WOMEN'S PROGRESSION IN THE AMERICAN MUSIC
INDUSTRYDURING THE 1960S
The 1960s in American culture was a revolutionary time for several socialgroups:
the African Americans sparked the civil rights movement, thecounterculture
flourished and the second wave feminist movement beganto gain in strength.
Women of all ages insisted on equality betweenthe genders in American
society. Women in the music industry faced similarprejudices as in society,
yet several women produced successful careers.Janis Joplin blended the
characteristics of masculinity and femininityand gained fame with her
rough sex appeal. Joan Baez led the folk musicmovement to express her
support of peace and equality. Aretha Franklinemerged as a sensational
crossover artist. Franklin embodied all themovements with her hit "Respect"
because the 1960s was simply a cryfor respect and equality.
MICHELE C. HACKETT: NEUMANN COLLEGE
NURTURING PALESTINIAN TERRORISM IN CHILDREN
Movements are instruments of change. The Palestinians use terrorismas
a strategy for the reform they desire. Terrorism is successfullyconducted
by attaching it to a religious and nationalist purpose. Palestinianterrorism
is carried out by Islamic extremists, which can be seen byobserving
some of the Middle Eastern schools and practices and the detrimentaleffects
of these teachings. We can see how hatred is nurtured throughthe pressure
to conform in these schools. Terrorists are training childrento be used
as tools for their goal: to reclaim Palestine under a religioussociety
and government. As a way of attaining this goal, hatred is nurturedin
Palestinian schools.Literature
SEAN C. WILLIAMS: RANDOLPH-MACON COLLEGE
LEFT AND RIGHT: AN ANALYSIS OF THE POST-WAR LITERATURE OF OE
KENZABUROAND MISHIMA YUKIO
In this paper I will be analyzing the Post-War literature of the Japanesewriters
Oe Kenzaburo and Mishima Yukio. My focus will be exploring theconcept
of humilation and its reflection on both Japanese society andliterature
by looking at two specific works: Sheep(1958) by Oe Kenzaburoand Patriotism(1961)
by Mishima Yukio. These two short stories givea post and prewar perspective
on the concept of humiliation. Oe andMishima take different stances
on pride, dignity and the concept ofhumiliation and these differences
become key to understanding the attitudesin both Japanese society as
well as the authors' literature. I willshow that through literature
Oe Kenzaburo and Mishima Yukio were ableto capture the concept of humiliation
and display it, through whollydifferent perspectives, in all its realized
detail.
RIAN KERFOOT: CHRISTOPHER NEWPORT UNIVERSITY
PARALLEL LIVES: THE LINK BETWEEN THE BRONTĖ AND PROZOROV SISTERS
Many parallels exist between the Prozorov sisters in Anton Chekov'sThree
Sisters and the lives of the infamous Brontės. Not only did theylead
similar lives, but they also shared character traits and familyrelationships.
Both sets dealt with the loss of their mothers and wereraised by their
fathers. The Prozorov's brother Andrey is strikinglysimilar to the Brontė's
brother Branwell, who was talented and intelligentbut squandered his
aspirations and fell into debt. The towns in whichthey reside are both
stifling and isolated. The dreams expressed soeloquently by the Brontė
sisters in their novels and poems are echoedin the words of the play.
The link is important because it adds a senseof reality, humanity and
history to a piece of important and celebrateddrama.
Physics/Engineering/Mathematical Sciences
JENNIFER A. WARDE: SWEET BRIAR COLLEGE
MODELING OF HELICAL JETS EMANATING FROM ACTIVE GALACTIC NUCLEI
CO-AUTHORS: MARIANA LAZAROVA, DR. GRANT DENN
Four Active Galactic Nuclei (AGNs) were studied utilizing the high resolutionradio
imaging capabilities of the Very Long Baseline Array (VLBA) radiotelescope.
The objects studied included three BL Lac objects and onequasar. Data
were collected for two epochs, August, 2001 and January,2002, at three
different frequencies, 15.4 GHz, 22.4GHz, and 43GHz.We attempted to
use a helical model to describe the geometry of thejets emanating from
the AGNs. The BL Lac objects 1749+096 and 1823+568showed no evidence
of helical behavior. We determined several geometricalparameters including
jet opening angle, axis to line of sight, and initialpitch angle for
two of the objects (BL Lac and the QSO 2134_004) usingboth brute force
techniques and a genetic algorithm search routine.
CAVILLE STANBURY: SWEET BRIAR COLLEGE
OPTICAL SPECTROSCOPY OF SINGLE CRYSTAL YVO4
YVO4 is an emerging optical material used in telecommunication componentsand
as a solid laser state host. When grown, the material has a yellowdiscoloration,
which may affect its technological usefulness. The goalof this research
is to better understand the causes of this discoloration.In this preliminary
study, absorption spectra of two samples of YVO4of different discoloration
were taken. Laser excited luminescence spectrawere also measured as
a function of time. The emission spectrum producedby the more yellowed
sample peaked near wavelength 470 nm, while thatof the other sample
peaked at wavelength 475 nm. The decay time of thephotoluminescence
of the more yellowed sample was 34 µs and that ofthe less yellowed sample
was 43 µs.
KATHERINE KIRKWOOD: SWEET BRIAR COLLEGE
ERBIUM DOPED FIBER LASER MODELING
CO-AUTHOR: H.M. YOCHUM
A key component to developing the lasers used in technological applications(e.g.
fiber optic telecommunications) is a fundamental understandingof the
underlying physics. A physical model that can be used to predictrelevant
laser characteristics (output power, output wavelength, pulselength,
etc.) is a vital part of this understanding. The main goal ofthis project
is to model the lasing process in erbium doped opticalfiber (edf). The
model involves equations that govern the erbium ionpopulation dynamics
and optical power propagation in the fiber. A computerprogram is being
written to solve these equations numerically. Thismodel will be used
to study novel erbium doped fiber laser designs,and the preliminary
results of this project will be presented at thisposter.
MATTHEW KYLE WATTS: JAMES MADISON UNIVERSITY
THERMOELECTRIC CHARACTERIZATION OF VACUUM DEPOSITED THIN FILMS
CO-AUTHORS: DAVID J. LAWRENCE AND DR. GERALD R. TAYLOR
Vacuum deposited thin films were characterized in terms of thermoelectricproperties
relevant to thin film thermopiles. Thin films of Germanium,Antimony,
Bismuth, Vanadium Oxide, and Aluminum Oxide were evaporatedand/or sputtered
onto substrates of glass and oxidized silicon wafers.The Seebeck effect
is the voltage generated by a material per degreetemperature difference.
Integrating the test apparatus with LabVIEWallowed for simultaneous
voltage-temperature data collection. Seebeckvalues of Antimony and Bismuth
were measured to be + 29.8 mV/°C and- 54.4 mV/°C respectively. The high
resistance of some Ge films preventedaccurate measurement of the Seebeck
coefficient. Isochronal heat treatmentof layered film structures performed
at temperatures from 400°C-700°Cf or 1 hour failed to lower resistance
by more than 1 order of magnitude.
TIMOTHY KRAUS: CHRISTOPHER NEWPORT UNIVERSITY
POTENTIAL USE OF QUASI-OPTIMAL BOUNDING ELLIPSOID (QOBE) IN
CLASSIFICATIONPROBLEMS
CO-AUTHOR: GIHAN MANDOUR
The quasi-optimal bounding ellipsoid (QOBE) algorithm is a member ofthe
set membership (SM) algorithms that are used to identify linear-in-parameterssystem
models. In this work we demonstrate the potential use of notonly the
central estimator of the ellipsoidal set but also "other" parametersin
the set in a real life classification problem. We investigate theuse
of QOBE in classification of speech vowels based on the formantresonance
frequencies that characterizes them. The database consistsof vowels
sounds spoken by different speakers and by using an autoregressive(AR)
model we classify frames of speech data into one of the vowel sounds.The
potential of using QOBE non-central estimators is promising in producingbetter
formant estimates, with respect to the references, than the centralestimators.
JENARIEL KOTONIAS: SWEET BRIAR COLLEGE
LASER SPECTROSCOPY OF BISMUTH DOPED AND UNDOPED CADMIUM TUNGSTATE
CO-AUTHOR: CAVILLE STANBURY
Cadmium Tungstate (CdWO4) is a scintillating crystal used to detecthigh-energy
particles. The goal of this project is to further the understandingof
the role that impurity ions play on the optical properties of CdWO4.Other
groups have found emission spectra of CdWO4 characterized by twobands
each with a different lifetime. One band is often related to oxygenvacancies
and the other due to intrinsic emission. It was recently shownby others
that unintentional bismuth impurities play a significant rolein the
emission spectrum of CdWO4. In this work we excite bismuth dopedCdWO4
in order to characterize the emission spectra and emission kinetics.Our
results suggest that emission kinetics previously related to oxygenvacancies
are due to bismuth impurity ions.
LY TRAN: MARY BALDWIN COLLEGE
THE EFFECT OF SURFACE TENSION ON NATURAL RESONANT FREQUENCY
OF LIQUIDSIN A CYLINDER
The main purpose of this study was to find out whether surface tensionof
liquids affected the frequencies at which standing waves of thoseliquids
were generated. The liquids investigated were pure water andsolutions
of propanol and acetone at different concentrations. Liquidsurface tensions
were measured by modifying and applying both the duNouy ring and Wilhelmy
plate methods. Standing waves were generatedby controlling the oscillator-amplifier
on which a cylinder of liquidwas attached. Based on the data collected,
a mathematical model wasdeveloped for the relationship between liquid
surface tension and frequencyat which certain standing waves were generated.
The results were similarto those obtained for a standing wave on a drum
membrane and supportthe hypothesis that higher liquid tensions are associated
with higherstanding wave frequencies.
MARIANA LAZAROVA: SWEET BRIAR COLLEGE
HELIUM ACCRETION AND DETONATION ON WHITE DWARFS
We investigate helium accretion on a carbon-oxygen white dwarf (WD)of
sub-chandrasekhar mass, 0.8 solar masses, following the nucleosynthesisand
the hydrodynamic phases of evolution. The effects of the WD's initialmass
and the accretion rate on the critical mass for thermonuclear runawayare
studied. Exploratory calculations are performed using a reducedreaction
network -- including only 19 isotopes -- and with an extendedadaptive
network - including up to 2554 isotopes. In order to reproducethe runaway
mass of the calculations by Goriely et al. (2002) who founda critical
mass of 0.18 solar masses, we needed to use a lower accretionrate when
using a more realistic initial composition for accreted He-richmaterial.
MICHAEL D. MCFARLANE: CHRISTOPHER NEWPORT UNIVERSITY
DEVELOPING DATA PROCESSING SOFTWARE FOR A DC SQUID SYSTEM
When taking data with highly sensitive SQUID sensors, small amountsof
noise can often overshadow weak signals. When testing for defectsin
aluminum using a DC SQUID gradiometer system, two problems are regularlyencountered.
The first is background noise, caused by poor inducer alignmentor a
noisy environment. The second is non-uniform current induction,which
is detected by the SQUID as a change in magnetic field. Unevenspacing
between the sample and inducer causes this. In order for thesignal from
the defect to be detected, noise from these additional sourcesmust be
minimized. One method for achieving this is software data processing.By
normalizing and leveling each component of the measured signal, thenoise
is minimized and the detectability of small defects is increased.
MARY EVANS: CHRISTOPHER NEWPORT UNIVERSITY
USING THE LEAST MEAN SQUARE (LMS) ALGORITHM FOR SPEECH RECOGNITION
PROBLEMSWITH DIFFERENT NOISE SIGNALS
CO-AUTHOR: GIHAN MANDOUR
As a pilot talks through the radio, there are different noise signalsin
the cockpit of the airplane that are applied with the speech signalthat
makes it unrecognizable. The ability to recognize speech in noisyenvironments
is one of speech recognition applications. The objectiveof this research
is to investigate the different speech signals thatare being transferred
through the radio to the receiver and cancel outthe noise from the speech
signal. This will be accomplished using anadaptive filtering technique
called the Least Mean Squared (LMS) algorithm.The LMS algorithm and
the TDT Speech Equipment in the CNU Speech ProcessingLab at Room 130
Gosnold Hall, will be applied to individual recordedsignals with different
noise signals to simulate the actual problem.
ANDREA FALDEN: SALEM COLLEGE
THE HAT PROBLEM
We investigate the hat color problem for both perfect and imperfectteam
sizes by considering ways of constructing sets of losing configurationsand
corresponding strategies. We also obtain upper bounds for the numberof
equivalent sets of losing configurations for both perfect and imperfectteam
sizes.
ELIZABETH TOOLE: SALEM COLLEGE
TOWERING HELIX CURVES: AN INTERDISCIPLINARY INVESTIGATION
This research began asking what would happen if cards were arrangedin
such a manor that the bottom corner will rest on the top corner ofanother
card. Using three cards, we created a triangle. Once a trendwas established,
the artistic nature of the resulting three-dimensionalhelix was considered
as well as the process of reproducing this in ascientific way. Predictions
were attempted to speak of how a changein the variables would alter
the results. Once we found the underlyingstructure, research began on
similar structures and patterns. Connectionsare made to Biology, Chemistry,
Biochemistry, and the Fibonacci sequence,as well as to three-dimensional
design.
EDWARD J. JONES JR.: ROANOKE COLLEGE
CHANNEL FREQUENCY ASSIGNMENT IN THREE DIMENSIONAL SQUARE GRIDS
There exists a problem involving the assignment of frequencies to devicesthat
communicate with another device in a specific geographical area.There
has been extensive studies done on the problem and many areashave known
solutions however I will be examining one know scheme fora know schema
that has a less than adequate exhaustive solution. Inthis paper we study
the behavior exhibited in three-dimensional spaceand explain the importance
of our findings.
CYNTHIA BELLER: SWEET BRIAR COLLEGE
MEASURING LIGHT OUTPUT OF SCINTILLATING GLASS FOR NUCLEAR DETECTIONSYSTEMS
Four samples of scintillating glass, three from Pacific Northwest NationalLaboratory
(PNNL) and one commercially available sample, were irradiatedwith gamma
rays from a ~10 μCi 137Cs source. A nuclear system consistingof
glass and NaI detectors were used to test light output for thesesamples
of scintillating glass. Coincidence data between the glass andNaI detectors
were recorded for repeated tests of each glass, whichled to a determination
of light output for each glass. For instance,PNNL sample 666 had a mean
light output of 2,125 photons/MeV, whichwas 30% greater than that of
the commercial sample. All three PNNL samplesproved to be better scintillators
than the commercial sample.
THANANART KLONGCHEONGSAN: VIRGINIA MILITARY INSTITUTE
AN ENHANCEMENT OF SONOLUMINESCENCE DRIVING CIRCUIT
An improvement to the sonoluminescence driving circuit obviously enhancesits
stability and brightness. A new function generator and a new adjustableinductor
are used to help to increase its stability. The new resonantfrequency
is found between 30.45 kHz and 30.50 kHz. The spectrometeris installed
to obtain its visual spectrum. The maximum intensity isachieved in the
area of wavelength between 500 and 520 nm. A spectralpeak that extends
into ultraviolet is absorbed by water so we are unableto predict the
bubble's approximate temperatures. A driving waveformconsisting of first
and second harmonics is programmed to drive thecircuit. By using different
amplitude ratios and relative phases betweenthe harmonics we observed
the increase of the bubble intensity of upto 400%.
CONSCHETTA WRIGHT: SALEM COLLEGE
STATISTICAL ANALYSIS OF UNDERGRADUATE WOMEN IN MATHEMATICS,
PHYSICALSCIENCE, AND ENGINEERING
Has the percentage of undergraduate degrees awarded to females who majoredin
mathematics and science increased since 1992? Researchers at theHenry
Luce Foundation had 177 randomly selected institutions answera survey.
Of the 13081 degrees awarded in math and science in 1992,4410 were awarded
to females. In 2002, 18199 degrees were awarded, 6389earned by females.
Is the percentage difference large enough to implythat more females
are interested in earning a degree in math or science?Note: These statistics
do not include students who earned degrees inthe biological sciences.
Psychology
MINDY WOLFROM, CAROLYN BURTON, COURTNEY PATTI: SWEET BRIAR COLLEGE
THE EFFECTS OF PERSONALITY TYPE AND SELF-DISCLOSURE ON FEELINGS
OF INTIMACY
Research has shown that intimacy is facilitated by personal self-disclosure.However,
experimental manipulations that control personal self-disclosureare
rare. This experiment examined the effects of personality type andself-disclosure
on feelings of intimacy. Twenty-five women were placedin high, low,
or no self-disclosure groups. Confederates were used toprovide consistent
self-disclosure levels. Participants were told toself-disclose with
two confederates, one who reciprocated and one whodid not, and then
rated their feelings of intimacy for the confederates.Higher levels
of extraversion and self-disclosure led to significantlygreater feelings
of intimacy. Participants felt more intimate towardthe confederate who
disclosed to them compared to the confederate whodid not. These findings
suggest that intimacy is created through mutualself-disclosure and is
related to personality type.
CARRIE A. CONDON: CHRISTOPHER NEWPORT UNIVERSITY
USING A STATISTICAL MEASURE TO INCREASE WORD RECOGNITION ACCURACY
CO-AUTHORS: MANDI WINES AND DR. JEFFREY A. GIBBONS
In three experiments, we attempted to use a statistical measure combiningreaction
time and recognition judgments to increase accuracy of predictionsin
a word recognition task. Participants viewed words individually ona
computer screen. Participants then made recognition judgments for40
targets (words previously exposed) and 40 foils (words not previouslyexposed).
Recognition accuracy and reaction time were recorded. Thedata were placed
into SPSS and analyzed. In Experiment 1, a 48-hourretention interval
was used. In Experiment 2, each word was displayedfor 2-seconds with
no interstimulus interval and recognition judgmentswere made immediately.
In Experiment 3, we added an interstimulus intervaland increased exposure
to 4-seconds. We found that reaction time combinedwith recognition judgments
predicted exposure above and beyond recognitionjudgments alone.
LEAH DAVIS: SWEET BRIAR COLLEGE
CAN SEXUAL CONDITIONING OVERCOME THE NEGATIVE EFFECTS OF STRESS
ON FERTILITYIN FEMALE JAPANESE QUAIL (COTURNIX JAPONICA)?
Neuroendocrine investigations have shown that animals living in stressfulenvironments
produce relatively fewer offspring. Pavlovian investigationshave revealed
that sexual conditioning increases the number of offspringan individual
produces. The present experiment tested whether sexualconditioning could
overcome the negative effects of stress on fertility.Eighteen female
quail served as subjects and food deprivation was usedto induce stress
in half of the birds. The remaining birds were notfood deprived. Nineteen
conditioning trials were conducted during whicha 30 second tone (the
CS) was either paired or unpaired with accessto a male (the US). Results
indicated that food deprivation reducedfertility, but only in unconditioned
females. This suggests that conditioningcompensates for stressful living
conditions, and that sexual conditioningmay provide animals with adaptive
advantages that ultimately improvetheir reproductive success.
MELANIE JENKINS: CHRISTOPHER NEWPORT UNIVERSITY
THE EFFECTS OF MAKING PLEASANTNESS RATINGS ON WORD RECOGNITION
CO-AUTHOR: DR. JEFFREY A. GIBBONS
The present study examined the effects of making pleasant ratings inconjunction
with a word recognition task. Two experiments were doneusing a within-subjects
design in order to control for differences inindividual recognition
ability. Both experiments used different retentionintervals between
word presentation and test. In both experiments, participantswere presented
two lists of words for 20 seconds each. After the passingof the respective
retention intervals, participants returned to completeeither word recognition
task or pleasantness rating for trial 1 andthen participants completed
the remaining task (either pleasantnessratings or recognition judgments)
for trial 2. Pleasantness ratingswere expected to increase the hit rate
for words recognized comparedto when pleasantness ratings were not made.
The data supported the hypothesisfor participants who demonstrated poor
recognition ability.
MICHAEL SUIS: CHRISTOPHER NEWPORT UNIVERSITY
THE EFFECTIVENESS OF A DISCRIMINATORY STIMULUS ON CONDITIONED
AGGRESSIONIN BETTA SPLENDENS
CO-AUTHORS: ANDREA VELISSARIOS, ALICIA BURNS, DR. ANDREW J. VELKEY IIInstrumental
Choice behavior in Siamese Fighting Fish (Betta splendens;N = 10) was
investigated. The discriminative stimulus (SD) was a bluecheckerboard
pattern placed on one choice door. Subjects were allowedto choose between
an encounter with a conspecific (another live male)and a nonconspecific
(nothing). The SD was expected to be associatedwith the presence of
the conspecific. Three fish demonstrated reinforcement,denoted by decreased
swimway times, and treated the pattern as a conditionedreinforcer (S+).
Three fish demonstrated reinforcement but treated theunmarked door as
an S+. For two fish, swimway times increased, denotingpunishment. Finally,
two fish did not show a consistent choice patternor stable swimway times.
The disparate results may indicate that dominanceplays a role in choice
behavior.
RYAN CLEMENTS AND ELISE JUDD: WASHINGTON AND LEE UNIVERSITY
STEREOTYPES ABOUT MEMORY AND AGING
CO-AUTHOR: DR. DAVID ELMES
The current study investigates the effects of memory performance, andbeliefs
about memory performance through false feedback on judgmentsand target
memory ratings. Thirty-six elderly participants from retirementhomes
and the W and L community (mean age= 73) were recruited. The studyconsisted
of participants completing self-memory evaluations, a shortmemory test,
and then receiving various levels of feedback on theirperformance before
they rated the memory ability of others. Resultsindicate that beliefs
about one's memory affect one's ratings of thememory ability of others.
People who believed they performed well onthe memory test were harsher
in their judgments of targets. However,actual memory performance does
not affect target ratings. Participantswith high evaluations of their
memory had higher memory scores.
KELLY GIBBONS: SWEET BRIAR COLLEGE
CONTEXTUAL CONDITIONING OF FERTILITY IN MALE AND FEMALE JAPANESE
QUAIL
Sexual Conditioning is a specific form of Pavlovian conditioning inwhich
the opportunity to copulate with a member of the opposite sexserves
as the unconditioned stimulus (US) paired with the conditionedstimulus
(CS). Three experiments explored the nature of sexual conditioningand
its effect on fertility in Japanese quail. In Experiment 1 the femalewas
signaled using a specific environmental context as the CS pairedor unpaired
with access to a male copulation partner (US). In Experiment2, the male
quail was signaled using the same context while the femalesdid not undergo
conditioning. In Experiment 3, both sexes underwentconditioning. Results
are interpreted with respect to the adaptive significanceof conditioning
in the sexual behavior system.
LISA M. KARNES: RADFORD UNIVERSITY
MODERN DIETS AND EVOLUTIONARY VIEWS OF EATING
CO-AUTHOR: DR. DONALD M. HALL
I will research four of the most popular diets (Zone Diet, the Atkinsdiet,
the Ornish Diet, the Blood Type diet) and analyze them with respectto
evolutionary psychology theory. They will be analyzed by comparingthem
to the Paleolithic diet, one based on eating behaviors during Paleolithictimes.
Specifically, how likely is each diet to satisfy evolved eatingtendencies
(e.g. "cravings"), and is this likelihood correlated withhow long people
tend to stay with each of the diets? The scientificliterature will be
surveyed to find any such long-term studies of thepersistence of dietary
compliance, to determine whether compliance likelihoodis predictable
from evolutionary psychology theory.
KRISTIN WILSON AND LINDSAY BOUTWELL: CHRISTOPHER NEWPORT UNIVERSITY
MEMORY FOR CHARACTER SEX DIFFERING ACROSS MOVIES WITH POSITIVE
OR NEGATIVETHEMES
CO-AUTHORS: CHERYL A. TAYLOR & DR. JEFFREY A. GIBBONS
This experiment examined the effect of movie viewing, either positiveor
negative, on participants' memory for character sex in short stories.Psychology
students from a southeastern liberal arts university (N =175) were asked
to complete a survey consisting of 4 different scenarios.Each scenario
consisted of a male or female lead character, which waseither positive
or negative. Each scenario also consisted of supportingcharacters, which
were the opposite sex as the lead characters. Afterreading the scenarios,
the participants were instructed to answer surveysregarding the scenarios
and also list the last 4 movies they watchedafter completing an interpolated
task. The results showed that participantsdid not remember character
sex for scenarios depicting positive leadcharacters when participants
watched negative movies.
LINDSEY HAVENS: RADFORD UNIVERSITY
BRAIN FINGERPRINTING: USES AND MISUSES
CO-AUTHOR: DR. DONALD M. HALL
Brain fingerprinting, a technology which analyzes brain waves to detecta
subject's recognition of a stimulus, is said to be foolproof by itsdeveloper,
Larry Farwell. Media reports also have made impressive claimsfor the
technique and its possible use in forensics. My project willexamine
the scientific literature regarding Brain fingerprinting, todetermine
whether the claims made by Farwell and the media are justified.
KIM FAULKNER: NEUMANN COLLEGE
AGGRESSION: NATURE OR NURTURE?
My paper will discuss aggression in regards to the nature versus nurturedebate.
Biological factors will be considered as well as the role thatsociety
plays via role models and expected rewards. The influence thatgender
has on aggression will also be examined. Finally, I will examineFreud's
theory that aggression is instinctive and universal.
CHERYL A TAYLOR: CHRISTOPHER NEWPORT UNIVERSITY
FORGETTABLE HEROES AND NOTABLE VILLAINS: GENDER STEREOTYPES
PORTRAYEDIN THE MASS MEDIA
CO-AUTHOR: DR. JEFFREY A. GIBBONS
Researchers (e.g., Cobb et al., 2001; Signorielli, 1989; Signorielli&
Kahlenberg, 2001) have shown that the stereotypes presented in themedia
have an effect on personal stereotypes of individuals. This studyexamined
the gender stereotypes, which are typically portrayed in themass media
in modern times. The venues of the media examined by theresearchers
were music, news, sports, television, and theatrical films.Across the
venues, women were marginalized if they were portrayed aspositive characters,
and they were portrayed negatively if they wereportrayed as powerful
characters.
DAWN M. NEERING: CHRISTOPHER NEWPORT UNIVERSITY
MATERNAL RESPONSE TO DAUGHTERS' DISCLOSURE OF INTRAFAMILIAL
SEXUAL ABUSE
A sample will consist of 80 mothers with daughters between the agesof
2 and 17 years to whom intra-familial sexual abuse disclosure wasmade
to all area Virginia, Hampton Roads Child Protective Services fromJanuary
2002 to January 2003. Maternal response to disclosure of intrafamilialsexual
abuse will be examined via a questionnaire focusing on the daughter'sage
(at time of abuse) and the severity of the reported abuse. The responsesto
this questionnaire will be converted over to PRIDS scores (ParentalResponse
to Incest Disclosure Scale) that will be used to determinedegrees of
maternal response. The hypothesis that older-aged daughterswho endure
high severity abuse will be less believed than younger-ageddaughters
or daughters who endure low severity abuse should be substantiated.
MARTIN J. SCHMIDT: HAMPDEN-SYDNEY COLLEGE
UNILATERAL ROSTRAL INTRALAMINAR LESIONS PRODUCE DEFICITS IN
INTENTIONALMOTOR FUNCTION
CO-AUTHOR: G.D. WEESE
The role of the centrolateral (CL) and paracentral (PC) thalamic nucleiin
the selection and initiation of learned movements was examined byperforming
selective unilateral ibotenic acid lesions in the CL andPC of rats after
they learned to respond in the direction of a targetlight presented
either to the left or right. A decrease in correct responsesdirected
contralateral to CL and PC lesions was mirrored by an increasein incorrect
responses directed ipsilaterally in 3 of 6 rats. Reactionand movement
times increased when correct responses were made in thedirection of
the deficit. These data suggest that the CL and PC playa role in directing
contralateral intentional movements by facilitatingthe initiation and
execution of learned responses.
PAMELA ARMATA: ROANOKE COLLEGE
SPATIAL ITERATED PRISONER'S DILEMMA
This project involved work with the Prisoner's Dilemma. The Prisoner'sDilemma
is a game that models human interactions. We wrote a programto explore
a spatial variation involving a larger number of playersof a Prisoner's
Dilemma game. The players lived on a two dimensionalgrid and only interacted
with neighbors in their neighborhood. Aftereach iteration of interaction,
the players were allowed to move accordingto rules. Based on the living
environment and the type of game played,my project is titled Spatial
Iterated Prisoner's Dilemma. We gatheredinformation about the formation
of clusters, and which strategy wouldusually win. We learned how certain
strategies would protect themselvesand others against defectors.
JASON BRIGHTWELL: VIRGINIA MILITARY INSTITUTE
HOW FAR DOES THE SCHIZOPHRENIA SPECTRUM GO? COMPARING MMPI SCHIZOPHRENIASCALE
SCORES & EEG CHARACTERISTICS
This study was initiated in an attempt to find a positive correlationbetween
theta (4-8 Hz) & beta (13-21 Hz) brain wave ratios and the schizophreniascale
of the Minnesota Multiphasic Personality Inventory. Participantswere
33 undergrads (32 males, 1 female) from the summer sessions atVMI. Participants
were alternately given the survey before and afterthe EEG sample was
taken, and took the survey alone in a room to avoidsubjective social
pressure. Findings yielded a non-significant negativePearson correlation
(-.309, p = .080) with the theta/beta ratio, buta positive significant
Pearson correlation (+.376, p = .031) betweenbeta 2 (16-20 Hz), which
is found in anxiety disorders and is thoughtto be "bad" EEG.
MARY GORDON SEAY: SWEET BRIAR COLLEGE
THE EFFECT OF PRESENTATION MODALITY ON FREE RECALL OF INFORMATION
This experiment used a between subjects design within which list andlist
order were counterbalanced. It was expected that more words wouldbe
recalled from lists presented in the auditory modality and that primacyand
recency effects would be present in both auditory and verbal modalities.Forty-three
Sweet Briar College females were presented with two wordlists, one in
each modality. A mathematical distraction task was thengiven after each
list followed by a free recall test. Word lists werepresented verbally
on a computer screen and auditorily through a recording.Results were
significant in that more words were recalled from the auditorymodality.
Only the primacy effect was evident in list recall for bothverbal and
auditory modalities.