Iron is an essential micronutrient for phytoplankton growth, however oceanic concentrations of iron are very low and little is understood about it's chemical cycling. In this study, we examine how scandium (which is similar to iron in size but has simpler redox chemistry) effects the uptake of macronutrients in hopes to further understand the uptake and usage of iron by marine microorganisms, and eventually better understand iron cycling in the ocean.

20% of CSU students received a failing grade in Calculus 1 between 2019 and 2021. As a required course for many STEM majors, Calculus 1 outcomes have an impact on many students. When staff discuss different teaching strategies and ways to use resources, it’s natural to compare failure rates between campuses. Different CSU campuses have different student populations, so a direct comparison of outcomes may be unfair. The proposed poster describes the process of designing an analysis that could carry out a standardized comparison of calculus outcomes across campuses. Attendees will be invited to interact with the poster by adding relevant variables and pathways with sticky notes and markers.

Iron is an essential micronutrient for phytoplankton growth, however oceanic concentrations of iron are very low and little is understood about it's chemical cycling. In this study, we examine how scandium (which is similar to iron in size but has simpler redox chemistry) effects the uptake of macronutrients in hopes to further understand the uptake and usage of iron by marine microorganisms, and eventually better understand iron cycling in the ocean.

Seawater samples are to be measured for the iron concentration content. We measured standard samples to better understand what concentration ranges we could measure. We are currently working on optimizing the method to measure higher concentrations.

Iron is an essential micronutrient for phytoplankton growth, however oceanic concentrations of iron are very low and little is understood about it's chemical cycling. In this study, we examine how scandium (which is similar to iron in size but has simpler redox chemistry) effects the uptake of macronutrients in hopes to further understand the uptake and usage of iron by marine microorganisms, and eventually better understand iron cycling in the ocean.

Comparison of different anthropogenic materials as coverboards for ectotherm surveying, including two different kinds of plastics, Lexan and Acrylic, using temperature, humidity and occupancy status differences. The increased soil temperatures found from plastics compared to other materials may have further impacts on global warming and ectotherm ecosystems.

Comparison of different anthropogenic materials as coverboards for ectotherm surveying, including two different kinds of plastics, Lexan and Acrylic, using temperature, humidity and occupancy status differences. The increased soil temperatures found from plastics compared to other materials may have further impacts on global warming and ectotherm ecosystems.

Seabirds play an important role in transporting nutrients such as nitrogen (N) and phosphorus (P) from sea to land that are vital for both plants and animals. My study investigates how seabird guano effects plant growth using native wild strawberries. I conducted a two-month long study where I transplanted native strawberries to grow in soil that I mixed seabird guano in and soil without guano to compare its impact on plant growth. I found there was no significant difference between the plant growth in the soil with compared to without seabird guano. However, I believe a more extensive study is required to determine the precise impact of seabird guano on the growth of native plants.

Human induced pluripotent stem cells have revolutionized the medical world. These cells come from adult somatic cells and have the ability to differentiate into the three germs layers of development: mesoderm, ectoderm, and endoderm. To better understand the nature of these cells this project attempted to provide insight into the morphology through the use of scanning electron microscopy.

Currently food crops are used to produce bioethanol production, while plant waste cellulose could be used. However, cellulase enzymes are a limiting factor. We sought to characterize a novel cellulase identified by metagenomic analysis of bovine rumen by the JGI and Hess et al. We performed protein expression, genomic analysis, and characterization by SDS-PAGE, CMC and DNS activity assays, and electron microscopy of cellulose degradation. Our data indicates the cellulase is an endoglucanase with an activity of 6.27 cm2/ug, or 6x higher than commercial cellulase enzymes. These results have implications for creating efficient biofuels from agricultural waste products versus the current methods