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FOR IMMEDIATE RELEASE (4/06)
Contact: Dr. Matthew Weeks, Research Forum director, or Lynn Stewart or
Peggy Cooper, Centenary News Service, 318-869-5120 or 841-7261
See Listing
of Presentation Times
15th Annual Student Research
Forum is Friday, April 21, at Centenary College
SHREVEPORT, LA — Centenary College will present its 15th annual
Student Research Forum throughout the afternoon on Friday, April 21.
Students will make their presentations in Mickle Hall, the Smith Building,
and the Hurley School of Music, with research divided into four areas:
poster presentations, social sciences, humanities and natural sciences.
Dr. Matthew Weeks, assistant professor of psychology and director of
this year's Research Forum, noted that the annual forum provides Centenary
students an opportunity to showcase their talents and experiences. "They
are to be commended for their efforts and quality work," he said.
Judges will be Dr. David Beiler, associate professor of geology; Dr.
Christopher Cioccetti, assistant professor of philosophy; Dr. Scott Chirhart,
assistant professor of biology; Dr. Loren Demerath, associate professor
of sociology; Dr. Robert Prickett, assistant professor of education; and
Dr. Ross Smith, associate professor of music.
The presentation schedule is as follows:
Poster Presentations
Carlile Auditorium
(Mickle Hall first floor)
12:15 - 1 PM
Social Sciences
Kilpatrick Auditorium
(Smith Building)
1:25 - 4:10 PM
Natural Sciences
Carlile Auditorium
(Mickle Hall first floor)
1:45 - 4:30 PM
Humanities
Hurley School of Music
(Room 201)
2:05 - 3:20 PM
Posters to be presented are:
- Effects of Mixtures of Chemicals on Macrophages
Jessica Adams
Department of Cellular Biology and Anatomy
Louisiana State University Health Sciences Center
Research Advisers:
Dr. Cynthia Brame
Dr. Stephen B. Pruett
Organisms are rarely exposed to individual environmental pollutants,
yet limited research has been done on the adverse effects of chemical
mixtures on immune function. Previous studies suggest, that the insecticide
dieldrin and the herbicide atrazine act together in a greater than additive
manner in mice to suppress IL-6 production, but the mechanism remains
unknown. The short-term goal of this project was to determine the effects
of dieldrin and atrazine on polyinosinic polycytidylic acid induced IL-6
protein production in RAW 246.7 cells. We hypothesize that direct and
indirect effects of dieldrin and atrazine would inhibit IL-6 production
in vivo to a greater extent in combination than either compound alone,
and this inhibition can be modeled in a RAW 264.7 in vitro system. RAW
264.7 cells were incubated in serial concentrations of atrazine and dieldrin,
both alone and combined, for 2 hours. An ELISA was used to assay IL-6
production. In this system, results indicate that the combined chemicals
increase rather than decrease IL-6 at most concentrations. Therefore,
the in vitro model lacks the ability to accurately predict the in vivo
results.
- Does deletion of a large glutamine/alanine-rich sequence alter
function or localization of yeast casein kinase 2?
Julia Reynolds and Kelly Waterhouse
Department of Biology
Centenary College of Louisiana
Research Advisers:
Dr. Lucy Robinson
Dr. Cynthia J. Brame
Yeast casein kinase 2 (YCK2) is a member of the casein kinase 1 family
of protein kinases. This family of protein kinases is thought to be important
in glucose metabolism, synaptic transmission, receptor signaling, circadian
rhythm, DNA repair, nuclear import, and cell division. In yeast, YCK activity
is essential for cell division and colony formation. Yck2 has two important
functional domains: the amino-terminal kinase domain and the carboxy-terminal
domain, which is important for localization and, potentially, protein-protein
interactions. We investigated the importance of a glutamine/alanine-rich
segment of the carboxyl-terminus because we hypothesize that this region
is
important for protein-protein interaction and thus for Yck2 function and
localization. Using site-directed mutagenesis, we deleted this segment,
producing a green fluorescent protein-tagged mutant YCK2 allele that we
cloned in E. coli and expressed in yeast for analysis of function and
localization.
- Effects of deletion of four consecutive histidines on the
function and localization of Yeast Casein Kinase 2
Jillian Kennedy and Elizabeth Wilson
Department of Biology
Centenary College of Louisiana
Research Advisers:
Dr. Lucy Robinson
Dr. Cynthia J. Brame
Yeast casein kinase 2 (Yck2) is a membrane protein that is essential
for cell division and colony formation in yeast. An unusual stretch of
four histidine residues is found between the Yck2 amino-terminal kinase
domain and membrane-targeting carboxyl-terminus. Because four adjacent
bulky, charged histidines are quite unusual, we hypothesized that they
play an important role in Yck2 function or localization. We therefore
deleted the four histidine residues via site-directed mutagenesis using
green fluorescent protein-tagged Yck2 (GFP-YCK2) as a template. After
cloning the mutant gene in E. coli and confirming the mutation via
sequencing, we ligated the mutant gene into a yeast/E. coli shuttle vector
and expressed it in yeast. To assess function of the mutant gene, we used
a Yckts yeast strain, in which the chromosomal Yck2 allele functions at
24oC but not at 37oC. Introduction of wildtype YCK2
(our positive control) allowed these yeast to grow at 37oC, while introduction
of an empty shuttle vector (our negative control) did not allow these
yeast to grow at 37oC. We were then able to determine functionality of
our mutant Yck2 by assessing growth at 37oC. Localization will be assessed
by visualizing the GFP tag on our mutant Yck2 via fluorescence microscopy.
- The Short Term Effects of Carbaryl on Adult Woodhouse's Toads
(Bufo woodhousii)
Lisa Yi Requena
Department of Biology
Centenary College of Louisiana
Research Adviser:
Dr. Beth Leuck
The global decline of amphibians has been attributed to numerous causes,
but evidence suggests that pesticides are a growing contributor. Studies
also suggest that multiple variables may interact and affect the toxicity
of pesticides although biologists do not understand how the pesticides
are making an impact. The majority of experiments that have included
amphibians have only dealt with the larval stages, and few experiments
have considered adult anurans, which explains why biologists are unclear
the short term effects of carbaryl, a globally common pesticide, on adult
Woodhouseís toads (Bufo woodhousii) collected from Centenaryís
campus. Three groups of toads were subjected to three treatment conditions:
control (0.00 mg carbaryl/L water), group one (0.50 mg/L) and group two
(50.0 mg/L). Group one demonstrated a similar curve to the control group
although the decreased slope indicated a decrease in metabolic activity.
The CO2 production curve for group two showed minimal CO2 production implying
that the toadsí metabolism was greatly decreased. The data suggest
that the concentration of carbaryl may be related to acetyl cholinesterase
inhibition which impacts metabolic functions.
- Conditioned Taste Aversion in Rats
Jennifer Atchison
Department of Biology
Neuroscience Program
Centenary College of Louisiana
Research Adviser:
Dr. Felipe Gomez
Taste aversion is the phenomenon that occurs when individuals become
nauseas following ingestion of a given substance. Many times, nausea may
not occur for hours, but should the individual become nauseated, it is
likely he will pair his nausea with the substance
he ingested earlier and develop a taste aversion to that substance, choosing
in the future to no longer ingest it. Taste aversion can be established
using a rat model, and the duration of time required to overcome a taste
aversion can be tested. In this experiment, I was interested in evaluating
whether or not taste aversion developed if the rats were nauseated before
they were presented with a sucrose solution versus after. Three male rats
were first conditioned to drink water once a day for ten minutes on an
established 24 hour time schedule. They were then given sucrose solution
during the ten-minute time period each day, and one was injected with
5.29mg/kg lithium chloride to induce nausea before given the sucrose solution,
whereas the other was injected with 5.29mg/kg lithium chloride after it
was given the sucrose solution. I then tested each rat for taste aversion
by measuring how much sucrose solution they consumed during later presentations.
I also evaluated how strongly conditioned they were
by presenting the sweet water weeks later to evaluate if the taste aversion
persisted.
- Increases in Extra cellular Calcium Concentration Lead to
Increased Metabolic Rate in Xenopus laevis larvae
Beth Thompson
Department of Biology
Centenary College of Louisiana
Research Adviser:
Dr. Beth Leuck
Changes in calcium concentrations in bodies of water can change rapidly
due to anthropogenic factors such as concrete, deicer runoff, and fertilizer.
The effects of increasing calcium concentration were measured in Xenopus
laevis larvae by measuring the oxygen consumed/larvae/hour. The larvae
exposed to higher
calcium concentrations consumed more oxygen, corresponding to an increased
metabolic rate. This is important because an increase in the metabolic
rate indicates increased cellular activity. Calcium plays an important
role on the cellular level. It can be used to
signal mitosis or apoptosis. If the calcium concentration in a water source
were to change dramatically, it could cause signaling errors on a cellular
level. There has been a dramatic increase in deformities seen in amphibians
in recent years. These deformities
range from missing limbs to tumors. Though much research has been done
examining possible causes of these deformities, to my knowledge, no one
has examined the effects the aquatic calcium concentrations. These data
indicate that increases in calcium concentration could be a possible cause
of these malformations.
- Does instability of a mutant Yck2 protein require Yck2 kinase
function? The effect of a kinase domain mutation in an unstable Yck2
mutant
Talicia Johnson and Cheynita Metoyer
Department of Biology
Centenary College of Louisiana
Research Adviser:
Dr. Lucy Robinson
Dr. Cynthia J. Brame
The yeast casein kinases (Yck1 and Yck2) are essential for cell division
and ultimately cell survival and growth in yeast. Yck2 is characterized
by a kinase domain and a carboxyl-terminus domain that is essential for
protein localization and protein-protein interactions. Robinson and coworkers
have previously characterized a
mutant Yck2, termed Yck2?1, which lacks nine amino acids believed to encode
an alpha-helix in the proteinís carboxyl terminus. This mutant
demonstrates dramatic instability. We hypothesize that this instability
requires the kinase function of Yck2, perhaps because Yck2?1 phosphorylates
itself and thus targets itself for
degradation. To test this hypothesis, we induced a mutation in the kinase
domain of Yck2?1 using site-directed mutagenesis. The mutant Yck2 was
then transformed into E. coli, which amplified the mutant,
and the mutant DNA was recovered by miniprep. An analytical digest was
performed on the recovered DNA in order to determine if the YCK2-containing
vector was isolated. Sanger-dideoxy sequencing was used to confirm that
the desired mutation occurred. The mutant DNA was then cleaved and the
GFP-tagged mutant YCK2 was ligated into a pGAL shuttle vector, which was
again amplified into E. coli. The mYCK2-containing shuttle vector was
then transformed into yeast for
analysis.
------------------------------------------------------------------
Social Sciences presentations are:
- Ideological Foundations of Healthcare Inequality: A Cross-Cultural
Case Study
Diya Surie
Department of Sociology
Centenary College of Louisiana
Research Advisers:
Dr. Michelle Wolkomir
Dr. Cynthia Brame
This paper explores the ideologies that pervade the healthcare systems
in two hospitals, one located in India and the other in The United States,
to analyze how ideologies function to maintain healthcare inequalities
in these hospitals. Data were collected primarily through fieldnotes of
case locations and in-depth, loosely structured interviews with patients
and
healthcare professionals. Results indicate that, despite differences in
culture and in systems of healthcare between the two cases, class ideology
informed the ways in which the healthcare professionals approached their
patients. This study highlights the importance of ideological beliefs
as constraints towards creating more equitable systems of healthcare.
- The Role Gender Plays in Domestic Violence: What Is Being
Done to Stop It?
Megan LeBato
Department of Sociology
Centenary College of Louisiana
Research Adviser:
Dr. Michelle Wolkomir
Traditional ideas about gender still permeate our society today. Although
men and women now have similar rights and protections, greater privilege
and power are still linked to masculinity. Given the pervasive and well
documented trend that men commit domestic
violence far more often than women, it is plausible to suggest that efforts
to combat domestic violence should include working to change traditional
gendered notions of offenders. To examine how gender is negotiated in
efforts to decrease the occurrence of domestic
violence, I analyzed an anger management program instituted by the courts
to combat domestic violence. Often the solutions proposed to violent behaviors
offered within the anger management classes
incorporated gender in such a way that the solution was dependant upon
the same gendered meanings that create the problem. Because of this dependence
of gendered meanings the anger management classes
ran the risk of perpetuating the cycle not diminishing it.
- Obscuring Sexual Harassment: How Gender Stereotypes Perpetuate
Hostility Towards Women
Mary Noon
Department of Sociology
Gender Studies Program
Centenary College of Louisiana
Research Adviser:
Dr. Michelle Wolkomir
Research has shown that sexual harassment, though widespread, is largely
experienced by women. Despite such prevalence, sexual harassment is not
viewed as a serious social problem. This study examines how and why traditional
gender notions veil sexual harassment, making it appear normative. To
explore the relationship
between these gender notions and sexual harassment, data were collected
by means of extensive research and twelve interviews with currently employed
individuals. Interviews were tape-recorded,
transcribed, and examined for patterns. Given the tendency to assume men
cannot control their ìhyper-sexualityî and that women must
therefore do so, sexual harassment becomes seen as naturally-occurring
and permanent. Implications for understanding how gender ideologies sustain
power relations are also discussed in
this study.
- The Adjustment of Expatriate Families
Emily Argue
Frost School of Business
Centenary College of Louisiana
Research Adviser:
Dr. Kelly Weeks
As the business world grows larger and stronger, corporate America is
sending more of their employeeís families oversea. For the corporation
to be successful they need their employee to finish their assignment while
overseas. Studies have been performed to
measure how well the spouse of the expatriate adjusts to the host culture.
They concluded that training the spouse, along with the expatriate, better
helped them adjust to the host culture and the assignment completed. This
is better for the corporation because
they have not lost time and money with an employee who failed. The focus
of this study is on the children of expatriate and how their adjustment
affects the family. We hypothesize that training the children of the expatriate
will also lead to a successful completion
of the assignment. By surveying each member of the family we are able
to measure how each member of the family is affect by their family memberís
adjustment.
- Ethics in Accounting
Jonathon Wright
Frost School of Business
Centenary College of Louisiana
Research Adviser:
Dr. Barbara Davis
This paper discusses the ethical dilemmas we are facing in our accounting
profession. In short, ethics is ìa set of moral principles or values.î
This is a very tough area to regulate. Where is the point that one person
is wrong and the other is right? Just recently, we have seen many unethical
decisions turn into very large problems (Enron, WorldComÖ). This
paper will discuss the
reasons for these unethical decisions, what can or should be done to help
eliminate these problems in the future, and what must be done to restore
the publics trust in the accounting profession. This topic is not only
important to the future of accountants, but to the
future of our economy in general. We, as investors, put a lot of trust
in knowing the financial statements of the companies we invest in are
fairly stated. It is the responsibility of accountants, through auditing,
to make sure these financial statements are not materially misstated.
- The Role of Race and Social Class in Compensation Decisions
Lauren Frost
Frost School of Business
Centenary College of Louisiana
Research Advisers:
Dr. Kelly Weeks
Dr. Matthew Weeks
Previous psychological and sociological research has discussed the wage
differentials between black and white employees for years. There are many
theories explaining the gap in pay, and there are many articles
examining when and why it may decrease. However, the fact remains that
black men are paid less than white men overall. The purpose of this study
is to look at the interaction between race and interpersonal
judgments of social class on wage differentials and compensation decisions.
For instance, does an individualís race or perceived socioeconomic
status factor into what their offered base salary is or to
what their raise associated with a promotion would be? In order to test
these questions, we administered a survey with scenarios of working or
middle class employees. Race and social class were ounterbalanced, and
participants were asked to make a series of decisions concerning the targetís
probable income and how much of a raise the target should receive during
a promotion. Results indicated a significant interaction
between race and perceived social class when predicting raise amounts.
- Utilizing Student Managed Investment Funds in Finance Education
Scott Lerchie
Frost School of Business
Centenary College of Louisiana
Research Advisers:
Dr. Barbara Davis
Dr. Christopher Martin
A student managed investment fund (SMIF) allows undergraduate and/or
graduate students to manage a real dollar portfolio usually taken from
the schoolís endowment or from a designated gift. The fund is generally
dependent upon convincing endowment administrators to allocate funds to
be managed by students or finding a donor willing to make a designated
donation specific to the student investment fund. Once the fund is established,
students have the opportunity to apply theoretical concepts to real-world
situations while enhancing their learning experiences and improving their
finance education. The purpose of this research is to investigate the
use of student managed investment funds in the finance education process.
A review of the literature is conducted to determine previously identified
advantages and
disadvantages of this learning tool. Schools utilizing SMIFs in their
finance education are identified. Lawrence (1994) found 34 U.S. colleges
and universities had incorporated SMIFs into their curriculum. Since that
time, many additional educational institutions are reaping the benefits
of utilizing SMIFs in their finance programs. This research will identify
the location, size, and endowments of those schools with
SMIFs. Returns from SMIFs will be investigated and compared to the returns
of the college or university endowment.
- Micro-banking in Bangladesh
Thomas Scarlato
Frost School of Business
Centenary College of Louisiana
Research Adviser:
Harold Christensen
Micro-banking is considered one of the most promising tools in the fight
against global poverty. Intending to simply help the poor, Muhammad Yunus
stumbled upon a business model that was not only socially beneficial but
profitable as well. This business model has
since become the Grameen bank, the largest private bank in Bangladesh.
Micro-banking institutions leverage social capitol (and hopes of a better
life) to issue low risk loans to thousands of people living on less than
two dollars per day. By western standards, the loans are typically small
and the interest rates are high. By Bengali standards, however, the interest
rates are far
below those charged by traditional money lenders and the loan amounts
can be life changing. Opponents of micro-banking claim the marginally
poor are being brought above the poverty line while the extremely poor
are being largely neglected in the pursuit of higher
profits and repayment rates. Ultimately, the high repayment rates, profit,
and social benefit make it difficult to question the overall effectiveness
of the micro banking business model.
- Down the Red Carpet to a Box Office Hit
Emily Evans
Frost School of Business
Centenary College of Louisiana
Research Adviser:
Dr. Barbara Davis
The motion picture industry is very expensive and extremely risky. Investing
in a film is a complicated process that requires sophisticated knowledge
of investment vehicles, of the film industry, and of audiences. One must
have the ability to put a group of people together with name recognition,
proven talent, creative energy, and the will to get a project completed
(Matthews, 1996). Studies have documented that stars have a positive impact
on the success of a film (Rosen, 1981). Stars are valued by the public
resulting in
successful box office hits. Disney uses this ìattractive conceptî
and markets their films generating considerable gross revenues for their
corporation (Dekom, 1992). Film production represents major investment
with average production costs estimated at over ten million dollars (Smith,
1986). One purpose of this research is to investigate the impact of the
filmís rating, distributorship, and Academy Award and Golden Globe
award-winning actors and directors on the filmís budget. The second
purpose of the study is to evaluate the same variablesí impact
on the gross revenues of the films. This study examined films released
in at least one hundred theaters from the years 2002 to 2004. The filmís
rating, distributor, whether an Academy Award winning actor was in the
film, and whether more
than one Golden Globe winning actor were in the film was significant for
budgets and gross revenues.
- Competing Theories on the Eradication of Poverty
Thomas Scarlato
Frost School of Business
Centenary College of Louisiana
Research Adviser:
Betsy Rankin
ìThe eradication of poverty is impossible.î Undeterred,
several noted economists and large aid organizations have made exactly
that their stated goal: to ensure that no person on earth has to live
on less than two dollars per day. Despite this common goal, the
various agencies and economists vary wildly on the pivotal questions of
ìhowî and ìhow soonî this goal can be reached.
The United Nations Development Programme intends to cut global poverty
in half by 2010. Dr. Jeffery Sachs believes poverty can be
eliminated altogether within a single generation. Economist Raymond Baker
thinks Dr. Sachsí strategy is absolutely wrong but agrees that
poverty eradication is both possible and practical. Many more economists
and aid agencies have faith that the free market will
eventually put an end to global poverty without much need for outside
assistance. This myriad of theories presents a single inescapable question:
Can any of them actually work?
- Does reading style affect memory retention?
Sara Lehane
Department of Psychology
Centenary College of Louisiana
Research Adviser:
Dr. David Stafford
Reading and studying are common activities in any academic environment.
But, do the methods one uses to study and read help memory retention?
Does one remember more when reading silently or out loud? To determine
if there is a relationship between reading
style and memory retention, four groups of participants were asked to
read a short story either silently or out loud and then asked to complete
a short test immediately or 5 days after reading to determine a possible
relationship.
- Examining Autism Spectrum Disorder as a Communication Disorder
Megan Vaughn Lerchie
Department of Psychology
Centenary College of Louisiana
Research Adviser:
Dr. David Stafford
Autism Spectrum Disorder was first described in 1943. Since then it has
been classified as a neurodevelopmental disorder. The symptoms include
repetitive behaviors, an abnormal response to sensation, and social and
communication difficulties. Based on the authorís personal experiences
with autistic children and modern research of successful treatments of
autism, this paper will propose that autism should be classified as a
communication disorder. In this view, the social-communication deficits
in autistic children are the underlying cause of other problems, such
as poor academic performance. Current treatments of autism are analyzed
to determine which aspects of each therapy target social-communicative
development. The author proposes combining various aspects of treatments
to enhance social and communication skills.
- Why Some Think They Can and Others Think They Canít:
Achievement Motivation In Americaís Schools
Ashlie Junot
Department of Psychology
Centenary College of Louisiana
Research Adviser:
Dr. David Stafford
In this study researchers examine the basic concepts of motivation ñ
rewards, incentives, goals, effort, competence, source of motive, and
fear. After surveying the theoretical basis for what moves an individual
into action, researchers apply these concepts to the
current education system in America. What motivates students? What motivates
teachers? Are we running schools in a way that maximizes students' intrinsic
motivation? Finally, this study explores alternative methods of teaching
that may be more congruent with the basis of motivational theory. Are
there other styles of teaching that would appeal to students more than
lecture does? Do these alternatives present more opportunity to tap into
students' achievement motivation? This study investigates what are the
best
methods for instilling lasting motivation in students so that they can
continue through school with a drive to succeed.
- Iraq: A Prescription for Crisis
Ryan Goodwin
Department of Political Science
Centenary College of Louisiana
Research Adviser:
Dr. Philip Barker
Today it is impossible to read the newspaper or turn on the television
and not hear about Iraq. It is the source of constant debate not only
throughout Washington, but also at water coolers around the United States.
At first the debate was centralized around the idea that an invasion of
Iraq was necessary for the protection of U.S. interests because of the
imminent threat of
weapons of mass destruction and Saddam Husseinís willingness to
use them. Since the invasion, the debate has refocused on the ambiguity
of our current mission in Iraq. Every day we hear about American soldiers
dying, but we are no ever exposed to the successes in Iraq which justify
these deaths. During the war there were clearly defined objectives, find
the weapons of mass destruction, force the armies of Iraq to surrender,
and capture Saddam Hussein. Now that there are no clearly defined objectives,
a once popular war is
beginning to lose political steam. The current strategy in Iraq is creating
and following a timetable that leads to our eventual withdrawal from the
region. The important question here is what we should do in Iraq and what
policies would benefit the people of Iraq
the most.
- How Will the Future Status of Kosovo Affect European Integration
and Stability?"
Eftim Stojanov
Department of Political Science
Centenary College of Louisiana
Research Adviser:
Dr. Philip Barker
The goal of this paper is to analyze the recent developments in the
Balkan region and examine how the future status of Kosovo will affect
European integration and stability. In short, the author
argues that the more the international community prolongs Kosovoís
final status, the worse the impact on European integration and stability
of the Balkan region and the security of Europe as a whole. Moreover,
after the EU pledged to accept Romania, Bulgaria, and possibly Croatia,
in 2007, it can no longer ignore the Western Balkans. By ignoring the
Western Balkan countries, the EU runs the risk of creating a black hole
that can seriously harm the European project in the future.1
The view of the author is that Kosovo, and the Balkans as a whole, need
to be immersed as soon as possible under Europeís economic blanket
by giving Kosovo conditional independence with realistic prospects of
European integration. This research stands as a single case interpretive
study with an analytical framework resting on the constructivist/idealist
approach to international relations theory. The author also utilizes
Allen Buchananís theory of secessionist movements and the neofunctionalist
approach to European integration to further understand Kosovo's plight.
-----------------------------------------------------------
Humanities presentations are:
- Gender and the Multicultural Self: Translating Identity in
Jhumpa Lahiriís Interpreter of Maladies
Amy Larson
Department of English
Centenary College of Louisiana
Research Adviser:
Dr. Kimberly Vanhoosier-Carey
In my honors project, I explore the notion of identity in the work of
second generation American writers. Jhumpa Lahiriís short stories
in Interpreter of Maladies (1999), for example, depict the experience
of Indian-Americans from multiple perspectives, but with
a common theme of struggling to define oneself by translating values and
practices that conflict with the dominant American culture. The title
story is about a second generation couple on vacation in India; despite
their heritage, they are merely tourists. In such
stories, Lahiri uses photographs and mirrors to explore identity. In this
case the family photograph reveals the artificiality of gender roles,
specifically that of a wife and mother. Both photographs and gender roles
are presentations through which an individual and a
family communicate their stability by following the conventions. Just
as people automatically stop smiling and take a step or two away from
each other after the shutter clicks, it is also impossible to continually
fulfill all the duties of ones gender role. However, Mrs. Das defines
herself by her ability to perform this role, and
through the course of the story we see how complicated this is.
- Constructing a family: Dr. James Dobsonís Christian
principles of religion, politics, and gender roles in the American family
Kacie Lopez
Department of Religious Studies
Centenary College of Louisiana
Research Adviser:
Dr. David Otto
Family counselor Dr. James C. Dobson leads America's advocates for Christian
principles and maintaining the traditional family structure. His Biblically-based
advice on Christian family life has earned great public support, and has
created a political arena for the family values agenda in the form of
his organization, Focus on
the Family. This paper examines Dr. Dobson's highly-acclaimed family methodologies
with attention to Dr. Dobson's insistence on traditional gender roles
within the conventional family structure, and his claim that they are
crucial to the effective functions of the family, despite opposing evidence
that modern families require
gender roles with more flexibility. Section Two reviews the literature
on Dr. Dobson and other family experts, with attention to Dr. Dobson's
advice regarding families
concerned with adhering to religious principles in a society with shifting
social values. Section Three discusses the use of historiography as an
effective research method for the project. This project establishes that
Dr. Dobson perceives traditional
family and gender roles as essential to preserving American religion,
politics, and family. In a society whose attitudes appear more avant-garde
than ever before, Dr. Dobson pleads for conservative citizens to take
action against non-Biblical family structures through the arenas of political,
socially, and personal
activism.
- The Evolution of Intelligent Design
Courtney Lacy
Department of Religious Studies
Centenary College of Louisiana
Research Adviser:
Dr. David Otto
The Intelligent Design movement purposes that a rational creator exists
and controls organisms and complexities in the world. In recent years,
a group of conservative Christian Evangelical Protestant intellectuals,
dissatisfied with the record of Creationism, have reconstructed the debate
arguing for the existence of an Intelligent Designer. Although
research exists on the Intelligent Design movement, no comprehensive text
exists that traces the history of the movement. This paper focuses on
the changes made in the movement through the research of primary and
secondary texts and what that implies for the movement itself. Section
two reviews the literature on the subject. Section three analyzes the
research method used, historiography. Section four
examines the changes of the movement over time.
The Intelligent Design movement contains three major elements that interplay
to create a dialogue between advocates and the opposition. The movement
originally began as a set of religious convictions but soon attempted
to develop a scientific element to reinforce its statements about how
the world works. The movement also used politics to increase its following
and gain support for Intelligent Design. All the changes and adaptations
attempt to gain status and
legitimacy in the scientific and public sphere.
- Beneath A Black Messiah: The Theodicy of Martin Luther King,
Jr.
Darrius Díwayne Hills
Department of Religious Studies
Centenary College of Louisiana
Research Adviser:
Dr. David Otto
The primary and secondary works by Martin Luther King, Jr. and about
his thought provide an impressive amount of information on the various
areas of his theology. Despite the valuable work done on
King, what lacks in King studies is the systematic treatment of King's
theodicy, or his explanation of suffering in light of the existence of
God. This paper will explore the claim that Kin'ís theodicy rests
within his Black Messianic Vision.
Section one introduces and states the problem, outlines the purpose
and importance of the study, raises important resource questions, and
defines crucial terms. Section two explores four critical aspects of King's
theology: Nature of God, Nature of Humanity, Nature of Jesus Christ, and
Nature of Sin and Evil. Section three examines the research method of
the study while Section four reconstructs King's theodicy, revealing a
surprising counter-claim. Finally, section five will raise implications
of further study.
- 'Unnatural' Sex: A Cultural Exploration of Paul's Text
Amber Marie Monette
Department of Religious Studies
Centenary College of Louisiana
Research Adviser:
Dr. David D. Otto
Many Christians recognize Paul of Tarsus as a predominate figure of
early Christianity. Today Paulís writings serve as spiritual guidelines
for most Christians, especially in attempts to answer
questions pertaining to the morality of homosexuality. After exploring
the work of several scholars performing Biblical exegesis on Romans 1:26-27,
this paper asks the question: is it possible to interpret Paulís
text beyond its traditional understanding? In order
to answer this question, this paper explores the social and political
context of first century Rome. In examining these contexts, questions
of heterosexist ideals emerge. Thus, this project applies a queer reading
to the text as a method of interpretation, in order to yield a socially
liberated meaning. Section two reviews literature on the subject and is
divided into
the following sub-sections: Greek concepts of homosexuality, Roman concepts
of homosexuality, definition of Biblical language, and interpretation.
Section three explains the research methodology of
the project. Section four reveals how a traditional reading of Paul's
text often yields a negative and even sinful view of the homosexual. This
section also demonstrates how to apply a queer reading to the text as
a different method of interpretation. Ultimately, this project demonstrates
the benefits of a non-traditional interpretation of Paulís text.
Instead of examining
Paulís text for moral value, this paper demonstrates methodology
of interpretation and raises questions about the text, beyond its ability
to dictate right or wrong.
- Tea: The Barometer of Japan
Weston Schild
Department of Religious Studies
Centenary College of Louisiana
Research Adviser:
Dr. Peter Huff
Tea is a global phenomenon and has found many cultural niches to call
its own. Throughout the history of tea few cultures have ever exalted
it like the Japanese. Among the Japanese tea became the cultural symbol
of the bakufu, shogun, samurai, and even monk. Tea spread through all
spheres of wealth, religion, and culture and eventually became the "Way
of Tea," the
aesthetic mode of life that is unique to Japan. It is the intention of
this study to map the broad development of not only tea but Japan as a
whole through the span of almost a thousand years. Tea will be the cultural
barometer during this historical journey. Section one explores the medieval
period and how tea came to Japan as well as its cultural parent, Zen.
Section two covers the early modern period where tea grew into an institution
of political power. Section three uncovers the cultural assault endured
by, not only tea, but all
Japanese life during the Meiji restoration. Finally, section four shows
how traditional Japanese life and tea has recovered and explores the possible
future of the "Way of Tea" on a global level.
- A New Kind of Theologian: Conversational theology in Brian
McLarenís A New Kind of Christian Trilogy
Sean Christopher Hennigan
Department of Religious Studies
Centenary College of Louisiana
Research Adviser:
Dr. David Otto
In the 21st century, Christianity faces a crisis of relevance. The cultural
phenomenon often termed postmodernity challenges Christianity to reconsider
and sometimes reinvent traditional faith doctrines. While many moderate
and liberal theologians have taken up
this task, few contemporary evangelical/conservative thinkers have attempted
to adequately address postmodernityís problems and possibilities.
My research paper focuses on Brian McLaren's A New Kind of Christian
trilogy, which represents a novel approach to
postmodern evangelical/conservative theology.
Section Two reviews McLaren's works. Section Three outlines the use of
discourse analysis as a tool to examine the trilogyís writing style.
Section Four applies the method to the text, highlighting certain definitive
rhetorical patterns. Through these patterns,
McLaren sets forth a model for mutually-forming relationships in which
conversation leads to mutual transformative insight and experience, providing
a fresh perspective on traditional Christian ideas. The model not only
invites readers into the text but also
equips them to begin similar conversations with other believers. With
a new perspective, transformed through relationship and shared experience,
conservative Christians can once again address their culture effectively
as "a new kind of Christian".
-----------------------------------------------------------
Natural Sciences presentations are:
- Optometric Automation: Digitally Quantifying Segment Height
and Pupil Distance
Scott Brown* and Arthur Okura
Department of Physics
Centenary College of Louisiana
Research Adviser:
Dr. Juan Rodriguez
Segment height (SH) and pupil distance (PD) are two optometric measurements
used for bifocal and frame personalization. SH is the height of the line
with respect to the lowest point of a bifocal lens where the two prescriptions
for reading and distance meet. PD is the
distance between the centers of the two pupils. These measurements are
taken with manual tools and recorded manually for each patient. We are
proposing a computerized method to record SH and PD to increase the accuracy
and ease of these currently manual procedures. We modified a webcam to
capture images of a personís eyes from a comfortable distance.
Using the NIH imaging software ImageJ, we are able to draw SH and PD lines
on the image. ImageJ can then measure and record these lines in terms
of millimeters, since it allows the user to set an absolute distance scale.
At present, this engineering project will require developing an ergonomic
design, improving user-friendliness, and optimizing lighting conditions.
Supplementary research will determine the
possible usefulness of pattern recognition and infrared imaging. However,
the aims of the final product could ultimately have implications in online
frame shopping, online contact shopping, and increased quality of fitting
lenses, frames, and contacts.
- Automation of an Apparatus Using Visual Basic: Take Two
April Lynn Lawrence
Department of Physics
Centenary College of Louisiana
Research Adviser:
Dr. Juan Rodriguez
The goal of this project was to continue the development of a computer
program written last year that was designed to automate the motors,
electronic valves, and heaters of a research apparatus currently under
construction in the Physics department. The program was to be upgraded
to give the user the ability to control each element of the apparatus
separately and the ability to change and save his or her work. This was
accomplished by writing the program to create a random access file when
the program is opened that is then used to manage a series of time
events, including the duration and motion of the motors, and the activation/deactivation
of the valves and heaters. Multiple files can be opened and saved within
the program to meet the needs of the user. The
program was also updated to run on Windows XP rather than Windows 98.
Another goal of the project was to design and build the circuitry that
interfaces the valves and heaters to two parallel ports in a computer.
Design principles of this circuit diagram will also be discussed.
- Enhancement of Griess Assay using a liquid waveguide capillary
cell
Jesse Tubbs and Adam Howes*
Department of Physics
Biophysics Program
Centenary College of Louisiana
Research Adviser:
Dr. Juan Rodriguez
Nitrite is a stable product of nitric oxide synthesis that is often
assessed as a marker of immunological, cardiovascular, or neuronal activity.
A simple and inexpensive colorimetric assay for quantifying this product
in biological fluids is the Griess Reagent.
A significant drawback of this method is its low sensitivity, which is
at best marginal to measure basal levels of this anion in plasma. Here
we explore the use of a 1-meter liquid waveguide capillary cell over conventional
1-cm cuvettes as a means to enhance the
sensitivity of the assay. Preliminary experiments suggest that a 10-fold
enhancement of is readily achieved when this added hardware is combined
with a modified assay protocol. Our results indicate
that a decrease in the amount of Griess reagent as well as an increase
in incubation time leads to this improvement.
- Studies on Chitin Deacetylase
Shelley Waits
Department of Biology
Biochemistry Program
Centenary College of Louisiana
Research Adviser:
Dr. Ernest Blakeney
Chitin, the B-1,4-polymer of N-acetyl-D-glucosamine, is the second most
abundant polymer, after cellulose. However, working with chitin is difficult,
as it is insoluble in aqueous solution. By converting it through deacetylation,
the product, ìchitosanî becomes soluble when protonated in
solution of pH 6. The free amine group is also a good nucleophile, so
its side chains can be used to tailor properties like viscosity. While
this process has been carried out industrially for some
time, it produces large amounts of caustic waste for small amounts of
usable product. Some are interested in developing a ìGreen Chemistryî
alternative.
Bacteria such as Bacillus cereus secrete chitin deacetylase (CDA) into
their surrounding environment. There are several inherent issues with
developing such a process. First, chitin is insoluble. The reaction being
investigated is coupled to a series of reactions
that are monitored using spectrometry methods. Lastly, Bacillus cereus
also secretes aggressive proteases that destroy CDA within 24 hours. While
much was accomplished, the goal of isolating and studying CDA was not,
due to difficulties in inhibiting the proteases and creating a medium
for the bacteria that lacked acetate, the product to which the enzyme
assay was coupled in order to monitor the deacetylation process.
- Phylogenetic Implications of Nuclear Sequence Variation in
the Peromyscus maniculatus species group
Joshua A Broussard*, Mindy L. Walker, Rodney L. Honeycutt,
and Ira F. Greenbaum
Department of Biology
Centenary College of Louisiana
Department of Biology and Department of Wildlife and Fisheries Sciences
Texas A&M University
Research Adviser:
Scott E. Chirhart
Prior research evaluated the specific validity and
phylogeographic origin of Peromyscus sejugis. The authors concluded that
P. sejugis is an insular isolate of P. maniculatus from Baja California
because of a low level of sequence divergence between these populations
in the ND3/ND4L/ND4 mitochondrial DNA region. These data supported the
assertion
that P. maniculatus is polyphyletic. Further, the study
confirmed the unresolved sister-group relationship between P. maniculatus,
P. sejugis and P. keeni. To test the validity of using the USP marker,
we compared sequence phylogenies derived from an X-chromosome marker (USP)
to the ND3/ND4L/ND4 phylogenies
for P. maniculatus from Baja and California. We first generated a USP-derived
phylogenetic tree and compared it to the known phylogeny for the P. maniculatus
species group. As we obtained
the corroborated phylogeny, we then assessed the level of variation in
the USP gene for the P. maniculatus species group and P. leucopus to determine
whether this marker resolved the P. maniculatus/P.sejugis/P.keeni trichotomy.
Since the USP marker yielded low levels of both intra- and interspecific
variation, it was ineffective in resolving the trichotomy; however, it
did cluster the P. maniculatus from Baja and California as separate from
other P. maniculatus populations, thus confirming the apparent polyphyletic
nature of P. maniculatus.
- The Effects of a Sugarcane Pesticide Cocktail on the Metabolism
of Lumbricus terretris.
Courtney Rome
Department of Biology
Centenary College of Louisiana
Research Adviser:
Dr. Beth Leuck
Few experiments focusing on the effects of chemical cocktails, a combination
of chemicals, have been performed. In this experiment I looked at the
effects of a sugarcane pesticide cocktail on the metabolism of earthworms
(Lumbricus terrestris). Earthworms respire
cutaneously making them suitable bioindicators of chemical contamination
of the soil. The cocktail was a combination of an herbicide, Roundup,
and an insecticide, Triazicide. Both are commonly used on sugarcane in
south Louisiana as post-emergence
pesticides. I determined the rate of metabolism by measuring the amount
of carbon dioxide produced by the earthworms when exposed to the chemicals
for six hours. I expected no change in earthworm metabolism in the presence
of the chemical cocktail. I found that
earthworm metabolism did not change significantly for the worms exposed
to the individual pesticides when compared to the control. However, the
chemical cocktail significantly lowered carbon dioxide production compared
to the other three conditions (p = 0.01).
- The Effect of Paraquat Poisoning on the Green Anole (Anolis
carolinensis)
Rebecca OíBrien
Department of Biology
Centenary College of Louisiana
Research Adviser:
Dr. Beth Leuck
Green anoles (Anolis carolinensis) are native to the southeast United
States. Paraquat is a pesticide widely used by commercial agricultural
producers to limit the growth of unwanted plant invaders. Because of its
wide-scale use, many organisms that live in these warm, moist areas may
come into contact with paraquat on a fairly frequent basis. In this experiment,
anoles were placed in one of three containersóa control (no paraquat),
one where the food was
saturated with paraquat (in the form of Gramoxone), and another into which
paraquat at field concentration was misted. Carbon dioxide levels were
measured four times an hour for 24 hours using Vernier Software Carbon
Dioxide Sensors. The three male anoles (one from each container) were
dissected to determine any physical effects. Upon analysis of data and
dissection, it was determined that paraquat, in the form of Gramoxone,
had a substantial effect on the
anoles. Effects ranged from decreased carbon dioxide production to liver
deformities to death, especially in those anoles misted with the chemical.
- Dendritic Cell-Based Genetic Immunotherapy for Prostate Cancer
Briana J. Williams, Nikolay Korokhov, Susan Boling*, Linda
Li, Michael Mathis, David T. Curiel.
Urology and Cell Biology/Anatomy,
LSU Health Sciences Center
Shreveport, LA
VectorLogics, Inc.
Birmingham, AL
Division of Human Gene Therapy
University of Alabama-Birmingham, Birmingham, AL
Our goal was to improve upon dendritic cell (DC) vaccination with tumor
antigens by delivering prostate specific membrane antigen (PSMA) via a
CD40-targeted adenoviral (Ad) vector expressing PSMA directly to DCs in
situ as an efficient means for activation and antigen presentation to
T-cells. We initially developed a mouse model of prostate cancer that
expressed high levels of human PSMA. We then tested the efficacy of the
CD40-targeted Ad-PSMA vector to stimulate a cytotoxic T-cell (CTL) response
in vivo. Using RM-1-PSMA cells pretreated with IFN-g as target cells,
we demonstrated
that DCs infected ex vivo with Ad-PSMA, as well as those infected by direct
intraperitoneal injection of the
CD40-targeted Ad-PSMA resulted in high levels of
tumor-specific CTL responses, compared to responses with a control adenovirus
(Ad-luc1). Thus, we have demonstrated that direct immunization of DCs
in situ with a CD40-targeted Ad together with IFN-g treatment of target
cells is effective in inducing an antigen-specific CTL response to PSMA.
We have initiated animal studies to test the efficacy of the CD40-targeted
PSMA vector versus a non-targeted vector with and without stimulation
by IFN-g in protecting against a lethal RM-1-PSMA tumor challenge. At
day 14 post-tumor inoculation, only those animals treated with the
CD40-targeted adenovirus and IFN-g were resistant to
challenge with RM-1-PSMA tumor cells.
- The Effect of Agricultural Pesticides on Native and Farm-Reared
Earthworms
Rebecca O'Brien
Department of Biology
Centenary College of Louisiana
Research Adviser:
Dr. Beth Leuck
Earthworms play an important role in the conversion of plant litter
into rich soil that is beneficial for plant growth. They can do this by
improving aeration and permeability of the soil. Agricultural pesticides
are widely used to ensure a higher quality product from
farms by ridding the soil of unwanted flora and fauna. However, many times
these pesticides have adverse effects on other organisms living in that
soil. One of these organisms is the earthworm. In this experiment, a group
of native earthworms and European earthworms reared on a worm farm were
put either into a control soil medium free of pesticides, a soil with
two pesticides, or a soil with three pesticides. Carbon dioxide levels
were measured four times an hour for 48 hours using Vernier Software Carbon
Dioxide Sensors. Different species of earthworms may respond differently
to the pesticides based on their previous exposure to them.
- Membrane localization of yeast casein kinase 2 by palmitoylation:
Does distance from the carboxyl terminus matter?
Michelle McNamara*, Travis Reece*, and Allyson Sandifer
Department of Biology
Centenary College of Louisiana
Research Advisers:
Dr. Cynthia Brame
Dr. Lucy Robinson
Yeast casein kinase 2 (Yck2) is a member of the casein kinase 1 family
of protein kinases. This kinase family has been conserved throughout evolution
and is important for several events in cytokinesis, such as bud and septin
ring formation. Previous experiments have demonstrated that membrane localization
is essential for full Yck2 function. Furthermore, two cysteines at the
carboxyl-terminus mediate membrane localization. Although mutation of
either of these cysteines
reduces Yck2 membrane localization and function, mutation of the two cysteines
individually results in distinct phenotypes. To investigate whether the
distinct phenotypes arise from the distance of the cysteine from the carboxyl-terminus
of the protein, we sought to delete the final cysteine. Specifically,
our experiment introduced a point mutation that deleted the
C-terminal cysteine residue by converting the cysteine codon to a stop
codon. To introduce the mutation, we performed site-directed mutagenesis
using a green fluorescent protein-tagged Yck2 as template. We then cloned
the GFP-mutantYCK2 (GFP-mYCK2) gene in E. coli. After performing Sanger
dideoxy sequencing to confirm that the desired mutation had been
introduced, we transferred the GFP-mYCK2 to a yeast/E. coli shuttle vector
and expressed it in yeast to investigate function and localization of
the mutant Yck2 protein.
- The effect of a carboxyl-terminal mutation Yeast Casein Kinase
2 function and localization
Brett Martin*, Ashley Williams, Courtney Rome, and Jennifer
Wilson,
Department of Biology
Centenary College of Louisiana
Research Advisers:
Dr. Lucy Robinson
Dr. Cynthia J. Brame
Yck2 (yeast casein kinase 2) is a member of the casein kinase 1 family
of protein kinases. Yck2 and Yck1, its homolog, are essential for cell
division in yeast. Strains of yeast containing one or the other survive
and grow, but strains lacking both do not complete cell division.
Yck2ís amino-terminal end displays kinase activity, and its carboxyl-terminal
end targets Yck2 to the plasma membrane. Our experiment sought to investigate
the effects of a deletion of 51 bp/17 amino acid C-terminal sequence that
is shared with Yck1. The carboxyl-termini of both Yck1 and Yck2 targets
the proteins to the
membrane. Furthermore, there is little sequence similarity between the
two proteins C-termini except for the region deleted in this case. The
goal of the experiment is therefore to determine whether this sequence
is required for the targeting of the proteins to the membrane. We used
site-directed mutagenesis to introduce the desired deletion into a GFP-tagged
Yck2. We then cloned the mutant Yck2 in E. coli, verified
the mutation by Sanger dideoxy sequencing, and transferred the mutant
gene to a shuttle vector for expression in yeast. Initial analyses will
investigate function of the mutant Yck2, while later analyses will
investigate localization.
- The effects of the conversion of a lysine to an arginine in
the catalytic site of YCK2 in Saccharomyces cerevisiae
Brittany Bjerke
Department of Biology
Centenary College of Louisiana
Research Adviser:
Lucy Robinson
Cynthia J. Brame
Yeast casein kinase 2 (YCK2) is essential for cell division in yeast.
A defect in this gene causes the yeast to be unable to divide, preventing
colony growth. We have investigated whether a change in the catalytic
site of Yck2óspecifically, the conversion of a lysine to an arginineówill
act as a lethal mutation. The mutation
was induced by site-directed mutagenesis. The mutant YCK2 allele was cloned
in E. coli, and the mutation verified by Sanger dideoxy sequencing. The
mutant YCK2 allele was then transferred to a shuttle
vector, amplified in E. coli, and expressed in a Yckts strain of yeast,
in which the chromosomal Yck2 allele is nonfunctional at 37oC. The ability
of the mutant YCK2 allele to complement the temperature-sensitive allele
was assessed to determine the functionality of the mutant.
- Role of Vibrio Cholerae CheA, W, and Y Proteins in Chemotaxis
Beth Thompson*, Pradeep Selvaraj, Rohit Gupta, and Kenneth
Peterson
Department of Microbiology and Immunology
Louisiana State University Health Sciences Center - Shreveport
Research Adviser:
Dr. Cynthia Brame
Vibrio cholerae is a motile gram negative bacterium that is the causative
agent of ~5-7 million cases of cholera worldwide each year. V. cholerae
colonizes the gut and secretes the cholera toxin in small intestine, which
can lead to severe dehydration and death. V. cholerae pathogenicity requires
the bacterium to demonstrate
directed chemotaxis, or movement toward a diffusible attractant. Chemotactic
genes, such as cheA1, A2, and A3, play a role in controlling the rotation
of flagella, resulting in directed chemotaxis. Che W1 and Y3 interact
with the dominant che A homologue. In order to understand the role of
various CheA proteins
in V. cholerae, we generated insertion mutations in cheA1, A2, A3 genes
through allelic exchange. We generated deletion mutants in ?cheW1 and
Y3 genes. The ?cheA mutant strains were characterized
using cholera toxin assays, chemotaxis assays, and in vivo colonization
using an infant mouse model. We saw no difference between wildtype and
?CheA1 and ?A3 mutants. The ?CheA2 mutant strain, however, showed a marked
reduction in chemotactic activity and also out-competed the wild type
strain in in vivo colonization
assays. These data suggest that CheA2 is the dominant CheA homologue involved
in chemotaxis signal transduction pathway. Previous studies
have shown CheW1 and CheY3 to be the dominant homologues of the CheW and
CheY proteins. Decreased chemotactic ability similar to that
seen in ?CheA2 was noted in the ?CheW1 and ?CheY3 mutants.
----------------------------------------------------------
Note: ì*î Denotes presenter(s) for multi-author works.
1 The International Commission on the Balkans, ìThe Balkans in
Europeís Future,î [database online] accessed April 20, 2005;
available at: www.balkan-commission.org
.
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