2013 Summer Research Projects Prof Bebej, Ryan Dept. Biology Funded by Student Jansma Melissa Braun Family Research Fund in the Sciences and Business Fellowship Project Title and Abstract A Whale of a Tale: The Origin of Tail-Powered Swimming in Early Cetaceans Modern whales are aquatic mammals, but the fossil record indicates that they are descended from ancestors that lived on land. In recent decades, this strange and seemingly counterintuitive transition has become one of the most prominent examples of macroevolution, but many details remain to be elucidated. This project aims to explore one key aspect of this transition: the evolution of tail-powered swimming. Quantitative comparison of fossil skeletons with those of modern mammals will provide the framework for assessing the functional capabilities of these early whales, providing insight into how ancient whales became increasingly adapted for efficient modes of swimming. Research will involve trips to the University of Michigan Museums of Zoology and Paleontology, work with modern and fossil skeletal material, and learning how to analyze data using select multivariate statistical analyses. DeJong, Randall Biology Jansma Kelsey Family Veldkamp Research Fund in the Sciences and Business Fellowship Genomic and niche characterization of bacteriophages in the microbial communities of the aquatic snails Biomphalaria and Helisoma Most multicellular organisms rely on symbiotic relationships with prokaryotes (bacteria), especially within the digestive tract, where they assist in digestion and provide essential nutrients and energy. Even in the small guts of invertebrates, these bacterial communities can be robust, unique, and critical to survival. Gut bacteria play an important role in the host immune response, and have even been shown to alter disease transmission in invertebrates that vector pathogens. One aspect of invertebrate microbial communities that has been largely unexamined is the potential role of bacteriophage, which putatively could play a large role in regulating community composition and function. We have isolated phages from the gut microbial fauna of aquatic Biomphalaria snails (which are the intermediate hosts for a human parasite, Schistosoma), Helisoma snails (local to campus), and sequenced their genomes. We have also begun to quantify the prevalence and abundance of phage in the snail gut using quantitative PCR. The student will begin and finalize existing genome annotations, perform quantitative assays of phage populations, continue characterization of the diverse bacterial communities from Helisoma, and implement new efforts to isolate novel phage. Dornbos, David Biology Integrated Andrew DeVries Science Research Institute (ISRI-HHMI) Specificity of Frankia Bacteria in Symbiosis with Native Speckled Alder and Non-Native Autumn Olive Autumn olive (Elaeagnus umbellata) is a non-native invasive shrub from Asia that is increasingly problematic in much of the U.S. Midwest. Much of the competitiveness of autumn olive is due to its ability to fix atmospheric nitrogen in nutrient-poor soils. This nitrogen is used to optimize photosynthesis rates allowing autumn olive to grow significantly faster than native shrubs. Autumn olive engages in a symbiotic relationship with Frankia bacteria in root nodules, the location where nitrogen fixation occurs. Previous research has demonstrated that autumn olive is capable of high nitrogen fixation rates. This is surprising because symbiotic relationships among plant and bacterial species are often quite specific. For example, Rhizobium japonicum has been developed specifically for soybean (Glycine max) and seed inoculation is required to optimize nitrogen fixation rates. Frankia also believed to interact with native alder species, notably speckled alder (Alnus incana). The objectives of this research program are to characterize the phylogenetic relationships among the Frankia bacteria responsible for nitrogen fixation in autumn olive and speckled alder in comparison with the nitrogen fixation rates of these plant species. Prof Grasman, Keith Dept. Biology Funded by US Fish and Wildlife, Clarence (Bud) Star and Arlene Talen Star Student Research Fellowship Grasman, Keith Biology Jansma Stacy Hooker Family Research Fund in the Sciences and Business Fellowship Impact of Mercury on Immune Function in Common Loons of New York's Adirondack Park The deposition of airborne mercury into lakes in the northeastern US and Canada presents significant health risks to fish-eating wildlife such as common loons. This mercury comes primarily from coal-fired power plants and cement kilns. In a previous laboratory study, dietary mercury exposure suppressed immune function in young loons. Field studies conducted during the past 4 years suggest significant immunological effects in young wild loons but minimal effects in adults. This study will continue investigations into immunological effects in wild loons living in New York's Adirondack Park (and possibly other locations in North America such as New Brunswick, Wisconsin, Maine, and Michigan, depending on funding). Loons will be captured at night by spotlighting and netting them from boats and canoes. White blood cells will be isolated from blood samples and cryopreserved for transport back to the laboratory at Calvin. Immunological functions of these white blood cells will be assessed using cell culture assays in the laboratory. Students will have the opportunity to work with biologists, rangers, and veterinarians from the New York Department of Environmental Conservation, the Bronx Zoo, and the BioDiversity Research Institute. National Science Foundation Enhancing Learning Through Research in Biology 225 Two students will join an interdisciplinary team of faculty seeking to strengthen student research projects in Biology 225, promote interdisciplinary STEM learning, and integrate assessments that support scientific teaching. The project will involve development and optimization of research methods, production of a new laboratory/field manual, and design of appropriate assessment instruments. There will also be opportunities in the fall of 2013 to assist with data collection and analyses that measure the effectiveness of these reforms as they are implemented. Koetje, Dave Biology Student Monica Langeland, Sylvia Fuhrman Jon Knott, Paige Stephens Project Title and Abstract Effects of Pollutants on the Health of Colonial Waterbirds in Great Lakes Areas of Concern Fish-eating birds are effective “sentinel species” for assessing toxic effects on the health of the Great Lakes ecosystem. Our previous studies have shown associations between pollutants and suppressed immune and hormonal functions in gulls, terns, and herons of the Great Lakes. The objective of the current study is to continue the assessment and monitoring of these health effects at contaminated sites around the Great Lakes. Specifically, this project is funded by the US Fish and Wildlife Service under the Great Lakes Restoration Initiative to measure the current health and population status of birds at specifically designated Areas of Concern. The data from this and other studies will help help the USFWS and other government agencies determine whether water quality at these sites has improved enough to remove them from the list of impaired sites, or whether they should remain designated as Areas of Concern. This project involves travel and boating for field work around the Great Lakes and follow-up laboratory work at Calvin. Students will have the opportunity to interact with USFWS scientists. Prof Proppe, Darren Dept. Biology Funded by Student Plaster Creek Jenna Kennedy, Stewards, Dean Pettinga Integrated Science Research Institute (ISRI-HHMI) Project Title and Abstract Avian and Water Quality Assessments along Plaster Creek We are looking for two students to do research in the Plaster Creek Watershed collecting data on bird behavior and water quality. The objective of the bird project is to investigate whether human produced noise affects the foraging behavior of songbirds. Theoretically, if birds cannot hear predators they must spend more time looking for them. This could reduce the amount of food a bird is able to procure and thereby decrease their fitness. To assess whether noise is affecting foraging behavior we will set up bird feeders at multiple locations along Plaster Creek that are exposed to various levels of noise (primarily from roads) to assess whether foraging behavior is altered in noisy areas. This project will involve placement and maintenance of bird feeders, video recording of foraging behavior, and collecting behavioral data from the video recordings. As we do this work, we will also be generating a bird inventory for the Plaster Creek corridor. The water quality project will continue research begun in the summer of 2012. We will be collecting data from multiple locations in the watershed throughout the summer. The primary focus will be to assess bacterial levels over time and space, as well as sediment, nutrient loading, pH, conductivity, and discharge volume. These data will be organized, processed, and compared among the different sites, and between this year and last year. Our objective is that these data will help identify the most problematic and dangerous sites in the stream, thereby informing the prioritization of restoration plans. Shen, Anding Biology National John Morris, Institutes of Anne Barron, Health (NIH), Wei Wang Clarence (Bud) Star and Arlene Talen Star Student Research Fellowship The roles of endothelial cells on HIV infection and latency formation in resting T helper cells In many patients with HIV-1 infection, highly active antiretroviral therapy (HAART) successfully suppresses viral loads and restores the immune system. However, a major latent reservoir identified in resting T helper cells (a type of white blood cells) poses a great barrier to viral eradication and ensures viral persistence in patients. A more complete understanding of the mechanisms contributing to the establishment of the reservoir will influence the strategies in battling viral persistence.Some recent studies demonstrated that endothelial cells increased the level of HIV infection in resting T helper cells and might play a significant role in latency formation in these cells. In this study, a replication incompetent pseudotyped virus system is used to investigate how endothelial cells interact with resting T helper cells to promote HIV infection and latency formation. Students who have taken Bio333 (Immunology Course) are preferred. Van Dragt, Randy Fritz and Carol Rottman Student Research Fellowship Impacts of Fire on Insect Populations in Created Prairie Prairie grasslands are maintained as biological communities largely through the regular occurrence of fire. Fire discourages the growth of woody plants and promotes a selection of grasses and wildflowers adapted to the prairie environment. Beyond the impact on plants, however, fire affects a range of other organisms, including insects. Half of the 20-acre created prairie at Calvin's Flat Iron Lake is burned each year, and this project will compare the two halves of the prairie to nearby unburned grasslands to identify the impacts that burning has on the species composition of the prairie insect community and the success of common species which compose that community. Since insects perform many essential functions on the prairie and in nearby ecosystems, it is important to understand the impacts of fire so that insect populations can be appropriately managed. Biology Lauren Verstraete Prof Van Dragt, Randy Dept. Biology Funded by Eco system preserve Warners, David Biology William H. Ian Noyes, and Celia I. Katie Dornbush Westergren DeVries Family Student Research Fellowship, Jansma Family Research Fund in the Sciences and Business Fellowship Restoring Native Habitats In Urban Landscapes In this project, students will work in the greenhouse, nursery and at sites on and off campus investigating the reintroduction of native plants and native habitats into urban areas. Part of this work will involve assessing data from controlled experiments to elucidate optimal germination and growing conditions for a group of particularly desirable native species. These students will also become invested in a focused campus restoration project in which native short grass prairie will be established in place of lawn between DeVries Hall and Spoelhof Cafe, a project that will include replicated outplanting treatments and the generation of an extensive baseline dataset. Students interested in this project will be willing to work outdoors in all kinds of weather and willing to invest in challenging physical labor. Warners, David Biology Fritz and Carol Rottman Student Research Fellowship Plant Responses to Climate Change at Flat Iron Lake Preserve This project will take place at Flat Iron Lake, during which time the student will be expected to live in a Calvin-owned house at Flat Iron Lake with one other student. This project is an ongoing flower phenology study, investigating the timing of flowering period for a variety of native prairie plants. The student who takes on this project will also evaluate a variety of planting strategies that were employed during a 2011 prairie restoration effort in a former feed plot located within the larger Flat Iron Lake prairie. Student Emily Fuller, Seth Hanstra, Jesse Vander Wees, Annaka Scheeres Dorthea Leisman Project Title and Abstract Stewardship of the Calvin College Nature Preserves Each summer three students serve for 12 weeks as stewards of the Ecosystem Preserve and the Flat Iron Lake Nature Preserve. The stewards are involved in a variety of land management, monitoring, and research projects. Land management activities include control of non-native species, restoration plantings, trail maintenance. Breeding birds, small mammal populations and vernal pool invertebrates are monitored annually, and current research projects are examining restoration strategies for different communities on both preserves. Work begins in late May and typically concludes in mid-August. Prof Wertz, John Dept. Biology Funded by Student Integrated Abigail Science Streelman Research Institute (ISRI-HHMI) Project Title and Abstract HTMAD: Software Design for MALDI-TOF Mass Spectrometry-Based Microbial Community Analysis Scientific computing and the ability to write specific programs to analyze large datasets of biological information has become an increasingly important skill with regards to advancing biological research. DNA-based technologies to identify individual bacterial species and communities, place them phylogenetically, and compare them statistically are time-consuming and expensive. Our matrix-assisted laser desorption/ionization mass spectrometer (MALDI-TOF MS) can generate high-throughput, low cost protein-derived data of biological samples, and we are currently finalizing a novel software program (HTMAD) written in Python that is able to convert protein-derived data to answer questions previously reserved only for DNA-based methodologies. As we are now in the final stages of writing and testing the HTMAD program, research will be focused on using HTMAD to (i) statistically compare and de-replicate cultivated microbial communities (real and artificial) grown under different environmental conditions (ii) compare and de-replicate microbial communities without a priori cultivation and (iii) construct a database of microbial isolates to which future unknown bacteria can be compared and identified. Even in its nascent stages, this program has demonstrated it is a powerful tool that enhances the ability of microbiologists, microbial ecologists, and those interested in proteomics to do high-throughput experiments and gain valuable data far more quickly and cheaply than ever before. The individual working on this project must have good knowledge computer science and programming but also an aptitude and interest for working with biological systems (i.e. proteomics, phylogenetics, bacterial cultivation and isolation). Wilstermann, Biology Amy Dr. Daniel J. Margot Oliver Visser Student Resdearch Fellowship in the Medical Sciences Investigating the Dynamics of Bacterial Communities in the Female Reproductive Tract A student working in my laboratory will have the opportunity to investigate the dynamics of bacterial communities found in the female reproductive tract. Normal flora, dominated by a variety of Lactobacillus species, serve to protect the vaginal tract from colonization by pathogenic species such as Gardnerella vaginalis that characterize an infected state known as bacterial vaginosis (BV). We are seeking to gain an understanding the factors that trigger a shift in this bacterial community from protective to pathogenic organisms. This shift is of particular importance in pregnant women since bacterial vaginosis is a risk factor for premature rupture of fetal membranes and resulting preterm births. This study aims to (i) determine whether pH changes in the reproductive tract trigger shifts in bacterial communities or are a result of such shifts and (ii) explore the differences that exist in the protective abilities of the Lactobacillus species that comprise the normal vaginal microflora. Wilstermann, Biology Amy Gift from Mr. Sara Conrad, and Mrs. Karyssa Dick Haworth Schrouder Cancer Curriculum Initiative (collaboration with Helen DeVos Children's Hospital) The Cancer Curriculum Initiative is an educationally based project to address specific needs within current grade-school biology instruction. Most children experience cancer, as nearly everyone knows someone with the disease. Despite the common incidence of cancer, we found that most of the age-appropriate resources for classrooms focus on the emotional and social aspects of a cancer diagnosis as applied to a child’s family or circle of friends. Few resources offer opportunities to explore the science of cancer. Our goal has been to develop age-appropriate, scientifically accurate, and engaging educational resources for children to gain comprehension of cancer-related topics. Prof Anderson, Carolyn Dept. Chemistry Funded by National Science Foundation Student John LaGrand Anderson, Carolyn Chemistry National Science Foundation David Wierenga Organic Chemistry: Synthesis of N-Alkyl Pyridone Containing β- and γ-Amino Acids Organic synthesis is a powerful technique that allows access to a wide range of different structural motifs. In this project, we are working to develop a method for the synthesis of N-alkyl pyridone containing β- and γ-amino acids – homologues of the natural amino acids, which contain an interesting functional group, found in a series of pharmacologically active compounds. To date, we have discovered an important intermediate in route to these species and have begun to optimize its synthesis. The students working in this area will continue to seek conditions for the preparation of this intermediate and its conversion into the desired amino acids. Arnoys, Eric Chemistry Barbachyn, Michael Chemistry Project Title and Abstract Organic Chemistry: Gold-catalyzed Rearrangement of N-Propargyloxypyridines Organic synthesis is a powerful technique that allows access to a wide range of different structural motifs. In this project, we are working to advance a method for the synthesis of N-substituted pyridones; an interesting functional group found in a series of pharmacologically interesting compounds. To date, we have developed a new gold(III)-catalyzed method for accessing this motif by rearranging a related system. The student working in this area will be responsible for exploring and optimizing a related gold(I)-catalyzed rearrangement. Integrated Riemer Watching Membrane Proteins in Real Time We will characterize the behavior of several membrane-bound Science Praamsma, proteins in living cells with state-of-the-art techniques to examine their cellular localization, mobility, and Research Kathryn Wrobel interactions with other proteins. Protein targets have been tagged with fluorescent proteins so that they can be Institute viewed in living systems. We will also examine what effect extracellular signals have on the proteins' behavior. (ISRI-HHMI) The student will serve as a research collaborator, learning both common and state-of-the-art biochemistry experimental techniques. In addition to learning about how research works, he or she will also gain valuable experience and will have the opportunity to serve as a co-author on research papers. No previous research experience or biochemistry coursework is required; a love of lab work and at least one college-level chemistry course are a must. First year science students interested in a multi-year research experience are strongly encouraged to apply. Integrated Niecia Flikweert Science Research Institute (ISRI-HHMI) Preparation of Bicyclo[1.1.1]pentyl Stannanes, Silanes and Trifluoroborates and Applications in PalladiumCatalyzed Cross Coupling Reactions This research proposal focuses on the preparation of bicyclo[1.1.1]pentyl (BCP) stannanes, hypervalent silanes and trifluoroborates followed by an exploration of the palladium-mediated cross-coupling reactions of these substances. Initially, reliable synthetic protocols for the preparation of a range of BCP stannanes, silanes and trifluoroborates will be explored and optimized. The targeted BCP cross-coupled products are envisioned as useful intermediates for further synthetic transformations, leading to potential applications in a variety of distinct research areas. Of greatest interest is the incorporation of selected BCP subunits into known LpxC inhibitor scaffolds to yield antibacterial agents with potentially potent activity against multidrug-resistant Gram-negative bacteria such as Pseudomonas aeruginosa. LpxC [UDP-3-O-(R-3hydroxymyristoyl)-GlcNAc deacetylase] is an essential metalloamidase that catalyzes the first committed step in the biosynthesis of the lipid A component of lipopolysaccharides in the bacterium's outer membrane. Any synthesized LpxC inhibitors will be evaluated for their antibacterial activity potential, potentially by a microbiologist at Calvin but most likely at the University of Notre Dame (Marvin Miller's lab). Prof Barbachyn, Michael Dept. Chemistry Funded by Student Integrated John Elenbaas Science Research Institute (ISRI-HHMI) Project Title and Abstract Synthesis of Novel QPT Antibacterial Agents Bearing Substitution at the Benzylic Position The quinoline pyrimidinetriones (QPTs) are a novel class of bacterial topoisomerase inhibitors that were discovered in 2002 and subsequently reported in the open literature in 2008 (Miller, A.A.; et al. Antimicrob. Agents Chemother. 2008, 52, 2806-2812). The initial lead compound, PNU-286607, exhibited excellent in vitro activity and in vivo efficacy against problematic Gram-positive pathogens, including methicillin-resistant Staphylococcus aureus (MRSA). This research project will focus on developing new synthetic methodology to synthesize QPT analogs substituted at the benzylic position, an area that has not been previously explored. Any synthesized analogs will be evaluated for their antibacterial activity potential, potentially by a microbiologist at Calvin but most likely at the University of Notre Dame (Marvin Miller's lab). Benson, David Chemistry National Science Foundation Taylor Hegg Benson, David Chemistry National Science Foundation Brett DeVries Anti-Oxidant Nature of Tyrosine-Cysteine Crosslinks in BF4112 The covalent bond between tyrosine and cysteine amino acid sidechains in proteins could potentially provide anti-oxidant chemistry. This project will characterize how the covalent bond (crosslink) between a tyrosine and cysteine in an orphan protein (BF4112) occurs. Our research group found this crosslink for the first time, but we are using this protein to "test drive" a variety of formation chemistries. We are interested in copper, iron, and manganese-based oxidations that are biologically inspired. Anti-Oxidant Nature of Tyrosine-Cysteine Crosslinks in Cysteine Dioxygenase The covalent bond between tyrosine and cysteine amino acid sidechains in proteins could potentially provide anti-oxidant chemistry. This project will characterize how the covalent bond (crosslink) between a tyrosine and cysteine in human cysteine dioxygenase (CDO) functions. Mammalian CDOs contain a tyrosine-cysteine crosslink where cysteine is oxidized but it is not clear if this crosslink contributes to the chemistry or if it contributes an additional function. We believe an additional anti-oxidant function in CDO controls how long the protein survives in the cell which is used to regulate cysteine concentrations in the cell. Some cysteine is necessary for protein production but too much cysteine contributes to neurological diseases. Benson, David Chemistry National Science Foundation Emily Golz Analysis of Tyrosine-Cysteine Crosslinks Concentrations in Proteins The covalent bond between tyrosine and cysteine amino acid sidechains in proteins could potentially provide anti-oxidant chemistry. To date, the most quantitative assay for tyrosine-cysteine crosslink concentration comes from a mobility shift assay in gel electrophoresis. A more quantitative assay needs to be developed. Our research group has explored absorbance, fluorescence, colorimetric, and electrochemical assays and has found encouraging results from a fluorescence assay. This project will collect the final data for calibration curve and apply this assay to BF4112, cysteine dioxygenase, and hemoglobin. Benson, David Chemistry National Science Foundation Matt Hollowell Computational Analysis of Tyrosine-Cysteine Crosslinks in Proteins The covalent bond between tyrosine and cysteine amino acid sidechains in proteins could potentially provide anti-oxidant chemistry. We have found at least one new tyrosine-cysteine crosslinked protein from a simplistic computational search of the protein databank (PDB), which houses all reported protein structures. Our research group is looking for better method to refine this list of potential proteins, and find additional proteins from the PDB, that might contain tyrosine-cysteine crosslinks. The work will involve running molecular dynamics calculations on Unix operating systems; which I have experience with. Prof Benson, David Dept. Chemistry Funded by National Science Foundation DeKock, Roger Chemistry Jansma John Strikwerda Family Research Fund in the Sciences and Business Fellowship DeKock, Roger Chemistry Luke and Pauline Schaap Summer Research Fellowship Jared Weidman Sequential Ionization Energies of Atoms For several years we have performed theoretical studies in order to obtain insight into the electronic structure of atoms. Specifically we aim to provide a theoretical underpinning as to why the sequential ionization energies of atoms roughly follow an arithmetic progression. We employ the GAMESS software, and the Restricted Open Shell Hartree Fock model within GAMESS (General Atomic and Molecular Electronic Structure System). Fynewever, Herb Chemistry Pfizer Fellowship, National Science Foundation Paula Kuiper, Rachel VanOeffelen Louters, Larry Chemistry Integrated Ola-Oluwakiti Science Alabi Research Institute (ISRI-HHMI) Student Andrew Roth Project Title and Abstract NMR Analysis of Tyrosine-Cysteine Crosslinks in Proteins The covalent bond between tyrosine and cysteine amino acid sidechains in proteins could potentially provide anti-oxidant chemistry. To date, the only structural information for tyrosine-cysteine crosslink has been derived from X-ray crystallography. We are pursuing X-ray structure analysis of a new protein with a tyrosine-cysteine crosslink, but NMR can provide more rapid information. This work will use the 500 MHz NMR at Calvin to directly demonstrate formation of a tyrosinecysteine crosslink within an intact protein and additional structural information. Cooperativity in Hydrogen Bonding For several years we have performed theoretical studies that relate to cooperativity in hydrogen bonding. For example, we examine molecular cubes with the formula NH3(H2O)7. We believe that these small cubes can serve as prototypes for cooperativity in hydrogen bonded networks in real chemical systems, such as ammonia, NH3, in water. We have completed similar studies on the thirty nine cubes of HF(H2O)7. Additional studies on these systems need to be completed. Those additional studies would be the focus of the summer 2013 work. Faculty approaches to student interaction in teaching science, math, and engineering Usually when students are learning science, math, and engineering they reveal their thinking to the instructor and the instructor uses this information to give feedback to the students. Often, however, this two-way communication is limited to formal assessments such as quizzes and exams, which happen after most of the learning has happened. Research has shown that there are many effective ways to better integrate this communication into the learning process (e.g. interactive classroom delivery and activity) realizing significant gains in student learning. Further research is needed to determine what the barriers are to two-way communication and to devise strategies to remedy these barriers. In this research, students will analyze data from classroom observations and interviews with faculty and students to detect and classify these barriers. Detection of oligomers of GLUT1 and its relationship to the activity of the transporter One model to explain the activation of GLUT1 is that it becomes more active if the transporter aggregates, likely as a tetramer. We will use two techniques to try to isolate GLUT1 tetramers and determine if the concentration of these tetramers changes when glucose uptake is activate. The first method is called blue native PAGE, which, in contrast to SDS-PAGE, is an electrophoretic technique capable of isolating membrane protein complexes intact. The second method will be using chemical crosslinking reagents that covalently link the GLUT1 proteins together, which can be then separated and sized by SDS-PAGE. Prof Louters, Larry Dept. Chemistry Funded by Student Integrated Sam Kerk Science Research Institute (ISRI-HHMI) Project Title and Abstract Relationship of GLUT1 tethering to the cytoskeleton and its influence on its activity GLUT1, like many membrane proteins, can be tethered to the cell cytoskeleton by connector proteins. Typically this tethering is involve in the recycling of the protein to and from the membrane surface. We will measure the fraction of GLUT1 tethered to the cytoskeleton and determine if that fraction changes when GLUT1 is activated. Louters, Larry Chemistry Integrated Stephen Science Gunnink Research Institute (ISRI-HHMI) Effects of curcumin (from the spice, tumeric) on glucose uptake Curcumin, an ingredient in the Indian spice, tumeric, has a molcular structure that is reactive with thiols. GLUT1, the major glucose transporter, is thought to be activated by the formation of a disulfide bond. We hypothesize that curcumin will alter the glucose transport activity of GLUT1 in L929 fibroblast cells. Muyskens, Mark Chemistry Enno Wolthuis Summer Student Research Fellowship, Thedford P. Dirkse Summer Research Fellowship Andrea Bootsma, Alexandria Hoerr Photochemistry: Research in Fluorescence in Sycamore Wood and Photoelimination in Acetylacetone There are two areas of photochemistry that will be investigated. One area is to investigate the chemical structure of the highly fluorescent components of the aqueous extract of sycamore wood. This project continues an effort to identify the fluorescent compounds from sycamore wood. The work involves liquid chromatography for separation and fluorescence spectroscopy. The other project will use computational tools to model the kinetic and molecular structural details of a gas-phase photochemical reaction. My research has experimental results from the ultraviolet laser photoelimination of hydrogen fluoride fromfluorine containing acetylacetone in the gas phase. The work will be greatly assisted by developing models related to the data. Sinniah, Kumar Chemistry National Science Foundation Maggie Van Winkle, Nicole Michmerhuizen, Amanda Witte Investigating the Binding of Insulin with G-Quadruplex DNA G-quadruplexes are noncanonical DNA structures formed from guanine-rich DNA sequences in the presence of monovalent cations such as potassium or sodium ions. These structures are of significant interest due to their role in biological processes. The human genome contains hundreds of thousands of sequences that have the potential to form quadruplexes. Proteins that bind to G-quadruplex DNA are likely to provide a clue to the role of G-quadruplex DNA in biology. Our group is currently studying the biophysical interactions between the protein insulin and the various sequences of Gquadruplex DNA found in the insulin linked polymorphic region. This project is suitable for a student interested in biochemistry, chemistry, or biology. Sinniah, Kumar Chemistry Integrated Abby Leistra, Science Jong Hyun Han Research Institute (ISRI-HHMI) Characterizing Riboflavin Conjugated Nanoparticles for Targeted Drug Delivery in Cancer Therapy Riboflavin (RF) receptors have been found to overexpress in prostate and breast cancer cells. RF receptors can be targeted for selective delivery of anticancer drug molecules. Our group has characterized RF conjugated dendrimer series for targeting the RF receptor. We determined that one series of dendrimer conjugates based on the orientation of RF attachment to the dendrimer performed better at binding to the RF receptor. This summer we hope to extend this work to study both monovalent and multivalent interactions between RF and its receptor using single molecule and bulk ensemble methods. This project is suitable for a student interested in biomedicine/biochemistry/chemistry/biology/bioengineering. Prof Tatko, Chad Dept. Chemistry Funded by Thedford P. Dirkse Summer Research Fellowship Student Caleb Uitvlugt Vander Griend, Douglas Chemistry SeongEun Kim, Nanomolecular Building Projects Understanding and controlling the synthesis of supramolecules is a key goal of Emily Rhude, nanotechnology. Students working on this project will use UV-vis spectroscopy and mass spectrometry to Matt Haveman investigate the solution chemistry of various inorganic and biochemical systems in which individual molecules associate in solution to form larger structures. Students may also get involved with computer programming and modeling if so desired. Nelesen, Serita Computer Science American Chemical Society / Petroleum Research Fund (ACSPRF) Integrated Science Research Institute (ISRI-HHMI) De Jong, Rich Engineering Thomas Wodarek Engineering Lukas Woltjer Department's Program for Sustainability Engineering Project Title and Abstract Perturbation of Acidity via Noncovalent Interactions A structured environment or lipid association can result in a significant alteration. This project will construct a series of folded peptides into a beta-hairpin conformation. This co-localizes a queried amino acid proximal to an acid. Through NMR methods the pKa of the acid will be determined to elaborate the noncovalent impact of the neighbor. HTMAD: Software for Analyzing MALDI-TOF Data The ability to write programs to analyze large datasets of empirically gathered data has become an increasingly important skill with regards to advancing research in biology, chemistry, and physics. A student working on this project will continue the development of a program (HTMAD) to analyze data from the MALDI-TOF mass spectrometer. The current version of HTMAD needs to be prepared for publication and distribution, and there are several extensions we would also like to implement. Previous programming experience is required (ideally CS 112, but perhaps not required). Development of a Thermal Test Chamber As energy becomes more precious and expensive, technologies that reduce energy consumption become more interesting to engineers, homeowners, and anyone who has payed an energy bill. One vital component of developing new technologies is the ability to compare the performance of new developments with current technologies, as well as competing developments. Standards for testing help to meet this need, and the use of standardized testing methods helps engineers and entrepreneurs make honest improvements that help everyone in the long run. The purpose of this project is to build, calibrate, and test a testing unit, hereafter “hotbox”, to be used for testing new window technologies. We are building the hotbox to conform with ASTM (American Society for Testing and Materials) and NFRC (National Fenestration Rating Council) standards regarding hotbox construction and operation. This will allow the hotbox to give comparable results to other hotboxes meeting ASTM specifications, and will allow Calvin to be a destination for companies and inventors looking to test and validate new fenestration products. Prof Kim, Yoon Dept. Engineering Funded by Student Integrated Kevin Vu, Science Aldo Daniel Research Institute (ISRI-HHMI) Project Title and Abstract Development of portable battery-operated wireless devices for environmental monitoring This project is to develop palm-size wireless computing devices for environmental monitoring. The device measures environmental factors, such as noise, temperature, relative humidity, atmospheric pressure, and soil moisture through sensors and performs logging data for a month-long period without recharging a battery. Although a conventional automated recording system could record data, one needs to bring the system to a lab to retrieve its data. This method is not only cumbersome, but also invasive to nature if repeated. There is more work that needs to be done to retrieve data conveniently. Using the proposed device, the saved data could be retrieved remotely through a wireless link. It reduces human intervention, and therefore, it would be less-invasive to nature and be more environmental friendly. Having a microphone and camera embedded, it can also stream a live audio and video of wildlife without disturbing nature. This project involves literature search, data measurements, designing of computer hardware and analog electronics, programming, system integration, and testing. Kim, Yoon Engineering Engineering Okkar Moe Department's Myint Program for Sustainability Engineering Development of Maximum Power Point Tracking Controller for Photovoltaic Cells The sun is the most abundant, and promising source for renewable energy, and harvesting technology for solar power has been developed rapidly over the last decade. Maximum power point tracking (MPPT) technology was one of the latest technology being developed, and supposedly improves the efficiency of the power supply system. Most photovoltaic (PV) systems are not able to utilize all power supply from PV arrays, and as a result, power loss is occurred. MPPT technology will be able to recover up to 75% of it. In short, MPPT is an electronic system that changes the operating points/parameters based on voltage supply (from solar modules) to deliver maximum power. The focus of the research was on the algorithm of MPPT technology and its performance on the MPPT circuit. Si, April Engineering Engineering Department Electrophoretic Focusing and Navigation for Intranasal Target Drug Delivery Delivering drugs from the nose to the brain has multiple advantages over the current intravenous delivery method. The reason that this is not the current method of treatment is because of the deficiency in methods to ensure the drug can navigate the nasal passage to the appropriate location where the tissue between the brain and the nasal cavity is thinnest called the olfactory epithelium. While there are vast options of nasal delivery devices available on the market, devices designed for selective olfactory deposition have not yet been found. Therefore, it is critical to search for more effective drug-delivery strategies that can directly deliver drugs to the olfactory region. Wunder, David Engineering Engineering Jerome Navarro Department's Program for Sustainability Engineering Rachel Gaide Fluoride Sorption onto Bagasse Charcoal Wood charcoal (WC) is broadly used in developing global regions (DGR) for heating and cooking. In many regions, WC production contributes to deforestation which can exacerbate global climate change and increase the adverse effects of soil erosion and flooding. Bagasse, the sugarcane residual from processing, is an alternative and sustainable source for charcoal. Although studied as a fuel source, bagasse charcoal (BC) also has potential value for water treatment. Treating water of DGR has focused largely on biological pathogens. However, there remains a need to develop novel and sustainable methods for removing non-biological contaminants. This work focuses on BC column studies of the removal of fluoride from water supplies. Prof Wunder, David Dept. Engineering Project Title and Abstract Funded by Student Integrated Julie Swierenga, Fate and Impact of Antibiotics in Denitrifying Biofilters Nitrate contamination of water supplies is caused by Science Jeremiah Rocha widespread use of fertilizers, erosion due to changes in land use, and leaching. One of the most cost effective and Research environmentally responsible processes used to remove nitrates from groundwater is fixed-film biological Institute denitrification. A possible concern with this process is the presence of antibiotics at in water supplies and their (ISRI-HHMI) impact on dentrifying biofilm bacteria and their ability to reduce nitrate. . Interestingly, recent work has shown that some antibiotics that might impede the activity of denitrifying bacteria may also be abiotically transformed in reducing conditions necessary for biological denitrification. This research attempts to understand whether grouped antibiotics at environmentally-relevant concentrations will impact the activity and community structure of denitrifying biofilm bacteria, and whether the response of individual antibiotics to reducing environmental conditions will partially mitigate their impact(s). Using substrate utilization kinetic studies, a continuous-feed rotating annular bioreactor would be used to better understand the fate and impact of grouped antibiotics ondenitrifying biofilm bacteria used for water treatment. van Dijk, Deanna Geology, Geography & Environmental Studies Integrated Linden Brinks, Science Lucas Research VanderBilt Institute (ISRI-HHMI) How does human activity affect coastal dune activity? This project will investigate how human impacts and management strategies affect the geomorphic activity of Lake Michigan coastal dunes. At North Beach dune and Mt. Pisgah in Ottawa County, the investigation will build on preliminary results from First-Year Research in Earth Sciences (FYRES) research students showing that management efforts are stabilizing these dunes. This summer, we will collect and analyze data to see whether it is possible to determine the relative contributions of different management strategies to the overall stabilization of the two dunes. We will also generate a list of promising research questions for future FYRES projects by exploring other dune sites for interactions between dune activity and human impacts and/or management strategies. van Dijk, Deanna Geology, Geography & Environmental Studies Van Buren County James Karsten Syndicate Park Dune Study A dune area in Van Buren County is advancing inland, burying houses and threatening others. Because Van Buren County owns most of the dune area, the Van Buren County Commission requested that a study be done on this area. Research focused on assessing human activities on the dune area and visitor and resident perceptions of the dune area. van Dijk, Deanna Geology, Geography & Environmental Studies National Science Foundation Merideth Beukelman Evaluating the FYRES Project A new course at Calvin known as the “First-Year Research in Earth Sciences: Dunes course, or just simply “FYRES: Dunes” was started two years ago. The FYRES course includes content specifically about dunes, but also allows the first-year students to engage in undergraduate research alongside upper-level research mentors. The second year of this course finished in the fall 2012 semester. A couple of the goals of this course include learning content about dunes, and also learning how to conduct good scientific investigations. The goal of the research this summer was to see if engaging students in a scientific research course would allow them to improve in their ability to apply scientific research skills and knowledge in a unique context. Prof VanHorn, Jason Dept. Geology, Geography & Environmental Studies Project Title and Abstract Funded by Student Plaster Creek Chengbi Liu, GIS and Remote Sensing of Plaster Creek Watershed Over the course of 10 weeks, we will engage in the Stewards William SooHoo development of a more sophisticated GIS system than is currently available for the Plaster Creek watershed. Gathering and developing a variety of spatial layers for the watershed and collecting an historical view of the watershed through aerial imagery will be the primary goal. Adding this GIS data to the existing watershed GIS @ gis.calvin.edu and developing new tools for the online application will be a secondary goal. Lastly, we will build a series of technical briefs to assist individuals interested in conducting spatial analysis using the layers we add to the GIS Server at Calvin College as an outreach to the Calvin Community. Bolt, Michael Math National Science Foundation, Jack and Lois Kuipers Applied Mathematics Endowment Timothy DeVries, Conrad Blom, Andrew Hayes, David Zhang Analytic functions of a generalized complex variable This is a continuation of a program in which students have participated since 2008 and which already has resulted in five publications with students as coauthors. This year's effort will center around properties shared and not shared by analytic functions of a complex variable with analytic functions of a dual or double variable. In general, the variable has form z = x + e y where e^2 = -1 for a complex variable, = 0 for a dual variable, and = +1 for a double variable. The applied math component is reflected in the recent appearance of double numbers in the study of nonlinear dynamics; students will be expected to gain familiarity with this application. The line of inquiry most closely resembles the work done by two students in summer 2011. Kapitula, Todd National Science Foundation Eric Yu, Shamuel Auyeung The Krein function - a new characteristic polynomial It is well-known that the eigenvalues of a matrix are found by determining the zeros of the characteristic polynomial. In many problems of physical/mathematical interest the goal is to not find all of the eigenvalues, but only those few that have some special significance. The Krein function is a different type of characteristic function - no longer a polynomial - which accomplishes precisely this task. The Krein function can be constructed in many different ways. The student researchers will explore the various ways of creating the Krein function, and attempt to determine a criteria which says which one is "best" for solving a particular problem. Math Turner, James Math National Nicholas Visser, Science Kate Ardinger, Foundation, HwaPyeong Kim Jack and Lois Kuipers Applied Mathematics Endowment Utilizing algebra to address problems in the geometry of polynomials Certain problems in geometry can be studied through hypersurfaces, that arise as the zeroes of multivariable polynomials, as well as their intersections. Such problems can often be resolved through knowledge of the dimension of such intersections. A device that facilitates the computation of such a dimension is the Hilbert function. The aim this summer will be to explore one or both of the following: 1. Use Hilbert functions to measure the extent a planar graph is rigid. A first step would involve giving an algebraic proof of Laman's theorem for characterizing rigid planar graphs. 2. Associated to a Hilbert function is its Hilbert series. Such a series has a lower bound and a conjecture of Froberg indicates when the Hilbert series is this lower bound. We will examine the next open case. Prof Ayoola, Adejoke Dept. Nursing Funded by Robert Wood Johnson Foundation, Alumni Grant, Science Division Student Kendra Pennings, Erika Bosch, Lyndsay DeGroot, Laura Schipper, Emily Johnson, Samantha Orozco, Rebecca Vander Wall, Megan Rietema, Colleen Skeba, Megan De MaagdRodriguez Project Title and Abstract Preconception reproductive knowledge promotion (PREKNOP) Unplanned pregnancy continues to be an ongoing public health problem in the United States which has a relatively higher rate than other developed countries. The social and economic cost of unplanned pregnancy and its associated adverse health outcomes on individuals and the society is enormous. Unplanned pregnancy rates and their adverse effects are even worse among minority and low-income women. The long-term objective of this research is to promote women’s reproductive health and positive pregnancy outcomes by examining the effectiveness of the “Preconception Reproductive Knowledge Promotion (PREKNOP)”, an intervention to increase women’s knowledge of their body, while reducing the risk of unplanned pregnancy and delayed pregnancy recognition. The social cognitive theory and the health promotion model guide this study. Based on a community-based participatory research approach, this study builds on residents’ reported concerns and recommendations as well as a longstanding partnership between the Calvin College nursing department and three racially diverse medically underserved low-income communities in southwest Michigan. The hypothesis is that the PREKNOP program will reduce the risk of unplanned pregnancy and improve women’s ability to manage their reproductive health. A sample of 120 women, 18-44 years old will be randomly assigned into two groups, one control and one intervention at the time of recruitment. A pre-intervention survey will be conducted to establish a baseline. The PREKNOP intervention will consist of 8 home visits during which women will receive information on the female reproductive system and the expected monthly cyclical changes. Teams of nursing students and community health workers will administer the 12 month intervention and surveys in face-to-face interviews. The PREKNOP intervention will consist of 6 ovulation test kits (participants can request refills at any time), a 12 month menstrual calendar, a digital thermometer, and educational brochures covering: the female reproductive anatomy, hormones and menstrual cycle, how to recognize ovulation period, various methods of birth control and how they work, early pregnancy symptoms, and how to confirm pregnancy symptoms. Women of childbearing age, especially minorities and the medically underserved, need continuous monitoring and on-going educational approach to reduce disparity in health and improve pregnancy outcomes. Promoting better understanding of the reproductive changes in their bodies and actively involving women in their own care is a logical place to start. Haan, Stan Physics National Science Foundation Nathan Harkema, Christian Woolley Computer modeling of double ionization of atoms by visible and infrared lasers Haarsma, Loren; Nelesen, Serita Physics, Computer Science Integrated James Lamine Science Research Institute (ISRI-HHMI) Developing a computer model of evolution of interlocking complexity in biology We have developed and are expanding a computer model which investigates one possible strategy for the gradual evolution of increasing interlocking complexity in biological systems. Artificial organisms called Pykaryotes gather resources from their environment, move, and build proteins and protein complexes based on their genetic code. Through mutation and selection their genetic code gradually becomes more complex. While the focus of the project is biological, some of the model's details are also relevant to questions of self-organized complexity in other fields. A student will work with professors in biophysics and computer science to run the computer program, modify the program, and evaluate how the model performs. Prof Haarsma, Loren; Haney, Becky; Norman, Vic Dept. Physics, Economics, Computer Science Funded by Student Integrated Jiaming Jiang Science Research Institute (ISRI-HHMI) Project Title and Abstract Programming and optimizing an agent-based computer simulation of a self-organized, interdependent economy Over the last three summers, Calvin undergraduates have programmed an “agent-based” computer simulation similar to computer games such as SimCity and Life. In this simulation, computer agents gather resources, invent tools and trade with other agents. Over time a complex network of interdependencies develops among the agents. This is a model of the development of economic relationships that exist in modern, technologically-advanced economies. The purpose of this model is to investigate the variables which affect wealth and inequality within an economy. This summer, a student will work with professors in economics, computer science, and physics to add functionality to the existing computer model by adding human virtues and vices to agent behavior and social institutions to the trading scenarios. The programming project will also include “parallelizing” the code, to vastly reduce runtime. Students should know or be able to quickly learn the C++ programming language. Students having had at least one economics course are preferred. Harper, Paul Physics Integrated Zach Strango, Science Chris Ver Hoef Research Institute (ISRI-HHMI) DSC and Temperature Jump Studies of Lipid Phase Transitions Lipid phase transitions among the many types of lipid phases are highly relevant to understanding the behavior of membrane proteins and the cellular processes of pore formation, division, fusion, and infection. Likewise, sugars play a key role in stabilizing membranes against freezing and dehydration. Last summer, we found that the disaccharide sucrose appears to be excluded from the surface of the frozen lamellar and hexagonal phases of the lipid SOPE, but partially included in the surface of the fluid lamellar phase. Over the fall, we started to study the lipid monoolein and sucrose, which forms exotic minimal surface based phases. In monoolein, we’ve seen the greatest phase transition shifts yet. This summer, we’ll use DSC, differential scanning calorimetry, to investigate effects of other sugars, such as glucose, trehalose, and raffinose. Concurrently, we’ll also build a temperature jump apparatus that will use optical methods to monitor the phase transitions. Molnar, Larry Physics Sam Van Michigan Space Grant Kooten Consortium, Integrated Science Research Institute (ISRI-HHMI) Asteroid Collisions To a remarkable degree, the history of our solar system is recorded in the details of the orbits of the numerous small bodies that are left over: the asteroids. In the last few years, we have developed new techniques to read this history, especially in identifying the age and membership of asteroidal collisional families. One key parameter in models of the collisional history of the asteroid belt is the impact energy required to disrupt an asteroid. Theoretical estimates of this parameter vary widely. The main goal of this summer's work is to establish this parameter observationally by careful study of the collisions that have occurred in the Koronis zone, an isolated region in the outer portion of the main asteroid belt. Towards this end we have written software to compute collisional speeds and probabilities along with software to combine several catalogs of asteroid information. This summer we will put these together to get a final answer. Prof Steenwyk, Steven Dept. Physics Project Title and Abstract Funded by Student Dan Van Noord Modeling Fast and Unusual Binary Stars Though they often appear as a single star, even when magnified, Michigan Space Grant binary stars are two stars held in mutual orbit around one another by gravity. Contact binary stars are so close Consortium, together that their atmospheres touch as they rapidly orbit one another. While these so called “W UMa” systems Integrated are not uncommon, many aspects of their life cycle remain poorly understood, from formation to final state. They Science are identified by characteristic shapes of the light curves obtained with Calvin's telescopes. Using powerful search Research and analysis software, student researchers have already found and typed many new variable stars over the last two Institute years. Several of these are quite extraordinary and thus of significant interest to the astronomical community. One (ISRI-HHMI) is one of the fastest contact binaries known that we call V0811+3119. Another is a complex system consisting of a contact binary that is itself orbited by a third star (V859 Cyg). While fast contact binaries remain the primary interest, the proposed ten week project will also follow up on a very rare blue sub dwarf in an eclipsing orbit with a red dwarf star (V2008-1753). Finally continued follow up is needed on a contact binary we call V0738+2950 that exhibits extraordinary variations in the shape and period of its light curve. This behavior may be due to activity of monstrous starspots or even presage a catastrophic stellar merger. Walhout, Matthew Physics Hubert A. Vander Plas Memorial Student Research Fellowship, National Science Foundation, John Van Zytveld Summer Student Research Fellowship TOTALS Jake Lampen, Margeaux Carter, Nathan McReynolds, Jonathan Shomsky Experiments with trapped krypton atoms We will use laser light to trap a small cloud of atoms, and then we will use various tools to study atomic collisions in the cloud. The goal is to understand the collisional dynamics in terms of diatomic molecular potentials that characterize the pairwise interactions between atoms. The work will involve optics, electronics, vacuum equipment, and computer programs for data acquisition and molecular modeling. 58 projects 73% were externally funded (grants from outside Calvin College) 41 professors 21% were funded by private donors 9 departments 100 students (51 men, 49 women) 6% were funded from within Calvin College 2013 Off-campus researchers Student Antonides, Kendra Hui, Esther Supervisor Prof. Rob Keys, Prof. Sam Riffle, and Fred Van Dyke Professor Daisy KY Shum (Biochemistry department), Professor YS Chan (Physiology department), Dr. Anthony Tam (post-doctorate), Mr. Lam Fung Kwok (research assistant) Funded by Innovative Technology Fund Mustert, Marie Dr. Dan Michele Niyibizi, Auguste Dr. Emily Smith U. S. Department of Energy Dr. JP Steibel What is the relationship between sculpin abundance and water quality in northwestern Michigan? Au Sable Institute, Mancelona, MI Production of Purified Chondroitinase ABC II in use for Studies of Spinal Cord Nerve Regeneration University of Hong Kong Summer The induction of dystrophin-glycoprotein complex function in differentiating iPSCs for the development of a model for the muscular dystrophies UnderUniversity of Michigan, Physiology Department graduate Research in Physiology Program at U of M Polet, Rachel Dr. Curtis U. S. Wilkerson, Department Jacob Jensen, of Energy Nathan Johnson VandeHaar, Peter Project Title and Location funded by supervising professor Using Raman and Fourier Transform Infrared Spectroscopy to Obtain Quantitative and Qualitative Data on Polystyrene and Polycarbonate Films Ames Lab Department of Energy, Ames, Iowa Investigating the biosynthetic pathway of xylan for the development of biofuel crops Great Lakes Bioenergy Research Center, Michigan State University Exploration and Exploitation of Linkage Disequilibrium Michigan State University Several other students did off campus research, for a total of 9 off campus researchers Ahn, Isaac Chan, Erica Pagel, Hannah Chemistry Physics Physics Colorado State Laser Interferometer Gravitational-Wave Observatory at the California Institute of Technology Great Lakes Eye Care (St. Joseph, MI)