UMSS22 Social Sciences<\/a><\/strong><\/p>\n UMSS22 Natural Sciences<\/strong><\/a><\/p>\n UMSS21 Biomedical Sciences<\/a><\/strong><\/p>\n UMSS22 Engineering and Information Sciences<\/strong><\/a><\/p>\n UMSS22 Interdisciplinary Sciences<\/strong><\/a><\/p>\n UMSS22 Business, Education, and Art<\/strong><\/a><\/p>\n UMSS22 Allied Health<\/strong><\/a><\/p>\n <\/p>\n Physical and Mathematical Sciences<\/b><\/p>\n <\/p>\n Submission Type: <\/b>Poster<\/span><\/p>\n Submission Category:<\/b> Physical and Mathematical Sciences<\/span><\/p>\n Author(s):<\/b><\/p>\n Kelvy Zucca<\/span><\/p>\n David Batuski<\/span><\/p>\n Undergraduate Student Presentation<\/strong><\/p>\n Faculty Mentor:<\/b> David Batuski<\/span><\/p>\n Abstract: <\/b>This project uses a custom polarimeter to measure the polarization of light we receive from stars. Most bright stars emit unpolarized radiation, so measuring non-zero polarization is significant. Even highly polarized stars only have polarizations around five percent. Polarized light from a star may mean 1) the star is actually a binary system, 2) the star has a significant magnetic field, or 3) the star has some other feature or variability that is atypical of the majority of bright stars. A polarimeter is used to measure polarization. As the Jordan Observatory did not have a polarimeter, the project began by designing and constructing an instrument to suit our purposes. The polarimeter needed to be small enough to fit unobtrusively on the telescope and have the precision necessary to measure stellar polarization. The polarimeter was designed, and parts were ordered for its construction. Once constructed, the polarimeter was used to collect data on a number of stars and other celestial objects. Code was written to work with the polarimeter. This code calculated polarization using the intensities of images taken at different orientations of the instrument. Stars with known negligible polarization and stars with known high polarizations were used to calibrate the polarimeter for any instrument polarization and check its accuracy. Then, stars with lesser known but still likely high polarizations were targeted. A few non-stellar objects were also targeted to test the capacity of the polarimeter. The polarimeter was paired with two different cameras to investigate their effect on instrument performance.<\/span><\/p>\n <\/p>\n Submission Type: <\/b>Poster<\/span><\/p>\n Submission Category:<\/b> Physical and Mathematical Sciences<\/span><\/p>\n Author(s):<\/b><\/p>\n Jinyoung Park<\/span><\/p>\n Matthew Brichacek<\/span><\/p>\n Undergraduate Student Presentation<\/strong><\/p>\n Faculty Mentor:<\/b> Matthew Brichacek<\/span><\/p>\n Abstract:<\/b> Glycosaminoglycans (GAGs) are involved in biological processes such as stem cell differentiation, migration, and infections. GAGs serve a significant role in influencing the attachment and transmission of harmful pathogens in biological hosts. The current processes of isolating GAGs are challenging and inefficient due to the complexity in their structure. In this study, glycan auxiliary 2-thio(N-aminoethyl)benzamide (TEAB) auxiliary was synthesized (75% yield) and conjugated to natural hyaluronate (hyaluronic acid) polymers. The hyaluronic acid polymers were shortened using acid hydrolysis, conjugated with the TEAB-Zn auxiliary through reductive amination, and fractionated by size. The conjugated hyaluronic acid was analyzed by 1H NMR. From the analysis of the 100-hour aliquot, 97.2 mg of conjugated HA product was obtained, which contained an average of 24 HA units attached to the TEAB-Zn. The functionalized GAGs were then attached to a glass microscope slide (biological array) for further in-depth analysis.<\/span><\/p>\n <\/p>\n\n
\n