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Science Building
CPO 2191
859-985-3318

Office Hours:
M–F, 8:00 a.m.–5:00 p.m.

Contact:
jay_baltisberger@berea.edu

chemistry logo


2013 plenary speaker, Dr. Paula K. Shear

2013 Berea College Research Symposium

The Berea Undergraduate Research Symposium (BURS), held each fall the same weekend that the Berea College Trustees visit campus, is an opportunity for the students and faculty to share research work with each other as well as these important campus visitors. This has been organized by the science programs in the past but participation is open to all members of the college community. In recent years we have structured the symposium with both talks and poster presentations as well as a plenary session.
The program for Fall 2013 will be held on Friday, October 18th. The 2013 BURS will start in the afternoon with student oral presentations, continue with student poster presentations, and end with a plenary talk by Paula K. Shear, Professor of Psychology and Psychiatry at the University of Cincinnat entitled "Neuropsychology of Epilepsy". She will be arriving in Berea before the symposium and anyone interested in talking to her about graduate school or her research in general should contact Jay Baltisberger. Jay Baltisberger
We generally start at 2:30 PM with two simultaneous oral presentation sessions (15 minutes each) in rooms 101 and 106 of the Science Building. The sessions are grouped by theme as much as possible. The poster session starts at 3:30 and is held in the lobby of the science building with posters from various fields (previous posters from chemistry, biology, physics, psychology, sociology, education, African American Studies, economics, industrial arts, computer science, physical education & health, and mathematics). All students who pursued substantial research projects over the previous year are encouraged to present their research.
We have been hosting the BURS since 2001 and have records of participants going back to 2007 online (see links to the left).
Students and faculty interested in attending or participating in the 2017 BURS should either contact Jay Baltisberger or Anes Kovacevic of the chemistry program. Alternatively a student may elect to register online via the link on the Chemistry department web server.

Porosity change after aging high-copper dental amalgams for 19 years

Lin Peng
Mentor: Richard Mitchell
Performed at Dental Schook, University of Kentucky
Dental amalgam is made by mixing mercury with a powder that consists of particles made of Ag-Sn, Ag-Cu, and/or Ag-Cu-Sn alloys. After amalgam has set, the partially dissolved alloy particles are found to be surrounded by a metallic matrix that is composed of the intermetallic compound γ1 (gamma-one) Ag-Hg. During aging, γ1 may decompose by either one or by both of two processes: 1) Hg evaporation or 2) Hg diffusion into alloy particles. During both process, γ1 decomposition is likely to be accompanied by an increase in porosity. The preliminary result suggested both amalgam samples will exhibit a significantly greater volume percentage of porosity after storage in air at 37oC for 19 years than after storage for two weeks under the same conditions. In this study, two types of high-copper amalgam are studied. For each type of amalgam, three amalgam cylinders (8 mm long x 4 mm in diameter) were aged for two weeks and three others were aged for 19 years. Cross sectional surfaces were relief polished to bring out the microstructure. Digital micrographs will be analyzed with an image analysis program. The volume percentages of alloy particles and porosity will be measured and, using t-tests, the volume percentages at two weeks and 19 years will be compared. Key point: If porosity increases, γ1 is decomposing.


Registration for the 103rd Kentucky Academy of Sciences Meeting should follow this link KAS Registration

The following students have registered to do presentations for 2013

Oral Presentations

# Name Title Major
1 Leif Van Laar, Michon Martin, Christina Benedict, Alyssa Hubbard, Rebecca Jeong Variation in Diversity and Abundance of Salamanders in Relation to Human Development in Six Selected Stream Habitats in Central Kentucky abstract biology
2 John F. Darling, Sophia Al-Maamary, Lauren A. Ballou, and Alanna M. Wentworth Seed germination ecology and seedling survivorship of the endangered cream gentian Gentiana flavida. A. Gray (Gentianaceae) abstract biology
3 Zachary Mullins An Orthodontic Internship biology
4 Pyae Phyo Using Phase Incremented Echo Train Acquisition (PIETA) Experiment to Measure Homonuclear 31P J-Couplings in Phosphate Glasses abstract chemistry
5 Michael McCann Asymmetric Catalytic Synthesis of β-Ketoesters through Ketene Intermediation abstract chemistry
6 Kenny Madden Berea Community Food System Assessment child and family studies
7 Kyle Godbey Synthesis and exploration of Half-Metallic Heusler Alloys abstract physics
8 Danielle Schaper Analyzing Topological Defects in Disordered Charge Density Waves in Transition-Metal Dichalcogenides abstract physics

Poster Presentations

# Name Title Major
1 Joshua Wedding, Melanie Keil POGIL in General Biology: Introduction and Analysis of Process Oriented Guided Inquiry Learning abstract biology
2 Melanie Keil, Joshua Wedding An Innovative Approach to Teaching Cellular Respiration in Introductory Biology abstract biology
3 Reena Martin, Yoshua Reece Soil microbial analysis of differing spoil types from Bent Mountain surface mine in Pike Co. abstract biology
4 Phillip Palumbo A Putative Antimicrobial Defense Mechanism in Basement Membranes biology
5 Kaitlyn Reasoner The role of residue K752 in β1 integrin homodimerization abstract biology
6 Josh Avance Pyirdoxamine protects collagen-4 from damage by hypochlorous acid biology
7 Amber Boothe Inverted Formin 2(INF2), A Fetal Risk Gene for Preterm Birth, is Highly Expressed in Mouse and Human Placentas abstract biology
8 Hsuan Peng Dietary Immunomodulation: Examining the Effect of Conjugated Linoleic Acid Treatment on Dendritic Cell Cytokine Production abstract biology
9 Ericka Berg Proprotein Convertase Processing of Peroxidasin biology
10 Jenna Rufer Toward defining the oncogenic activities in Aurora Kinase A that transform pre-malignant keratinocytes abstract biology
11 Amber Crabtree Expression and modulation of Lysyl Oxidase Like-2 in PFHR9 mouse endodermal cell line biology
12 Lin Peng Porosity change after aging high-copper dental amalgams for 19 years abstract biology
13 Shanequa Roscoe Host HLA Haplotype May Predict the Effect of Cigarette Smoke in Arthritis abstract biology
14 William Assan Cordon-Bleu and IRTKS protein interaction in microvillar brush border formation abstract biology
15 Kaamilah Wilson Obesity Induced Leptin Mediated Notch Signaling in Breast Cancer abstract chemistry
16 Daniel Pardue Characterization of Magnesium Stearate abstract chemistry
17 Travis Clay & Chyna Johnson Synthesis of Beta-ketoesters via ketene intermediate abstract chemistry
18 Mikiyas Assefa Spinning Sideband Analysis of Phosphate Glasses using scaled and unscaled correlation experiments abstract chemistry
19 Anna Tribble Coherence Pathways for CPMG and PIETA NMR Experiments abstract chemistry
20 Christina Kolsto, Phyo Phyo Zin Lead analysis in soils attributed to roadside gasoline deposition and pesticide usage abstract chemistry
21 Phyo Phyo Zin, Christina Kolsto Leaded paint analysis in soil around the buildings in Berea campus abstract chemistry
22 Garrett Cairo, Andrew Norris & Corey Payton Optimization of Synthesis of Internally-Quenched Fluorescent Peptides abstract chemistry
23 Dipendra Sharma Chapagain Comparative analysis of different types of colorectal cancer surgeries abstract chemistry
24 Karla Sophia Robinson Raven Rocks Visitors Center Construction Internship abstract physics
25 Brandon Schurter Equivalent Dosage from Neutron Radiation Produced by Deuterium-Palladium Plasma in the NTF Zebra Chamber abstract physics
26 Mackenzie Endres Boron Fullerenes: Laser Ablation of Boron crystals mixed with Carbon abstract physics
27 Namukaba Hichilo, Hatinawedu Mupiwa & Logan Ray Home Health Sensing and Automation abstract technology & industrial arts
28 Fidel Tewolde Bistable pneumatic actuators for soft robotics abstract technology & industrial arts
29 Denzell Barnett Development of Low Cost, Efficient CZTS Thin Films and Solar Cells abstract technology & industrial arts