13610 research outputs found
Sort by
Dr. Donna Nelson
No full textDonna J. Nelson is an American chemist specializing in organic chemistry, which she both researches and teaches. In addition to serving as a science advisor to the AMC television show Breaking Bad, Nelson was the 2016 President of the American Chemical Society (ACS) with her presidential activities focusing on and guided by communities in chemistry. Nelson\u27s research focused on five primary topics, generally categorized in two areas, Scientific Research and America\u27s Scientific Readiness. Within Scientific Research, Nelson\u27s topics have been on mechanistic patterns in alkene addition reactions and on Single-Walled Carbon Nanotube (SWCNT) functionalization and analysis, yielding the first COSY NMR spectrum of covalently functionalized SWCNTs in solution. Under America\u27s Scientific Readiness, she focuses on science education and impacting science by considering its communities; this includes classroom innovations and correcting organic chemistry textbook inaccuracies, on ethnic and gender diversity (the Nelson Diversity Surveys) among highly ranked science departments of research universities, and on improving the image and presentation of science and scientists to the public. (From Wikipedia - Donna Nelson)https://scholarlycommons.obu.edu/wstem_images/1038/thumbnail.jp
Opportunities for Women in Chemistry
No full textThis was a speaker for the Experimental Sciences presentations of the 2024 Arkansas Women in STEM conference
Proliferation and Oxygen Production of Arthrospira platensis in Varying Light Intensities
Full text linkAs space travel becomes more advanced, adequate nourishment and oxygen resources are crucial issues for scientists concerning long-term travel. Arthrospira platensis, also known as spirulina, is a protein rich cyanobacteria that could potentially provide a solution to these issues with minimal energy consumption. Spirulina is known to be used for protein supplementation with various health benefits and pharmacological applications. In addition, spirulina cultures produce high amounts of oxygen through photosynthesis using carbon dioxide. Proliferation and oxygen production are primarily dependent on the spirulina cell structure (straight or coiled). A mixed culture (containing straight and spiral Spirulina cells) and a spiral Spirulina culture were studied under 40 µM, 60 µM, and 80 µM light intensities in order to determine the behavior of cell reproduction and its effects on oxygen production. Six 2.5 L containers with Spirulina were placed under a light and elevated to reach the desired light intensities. Cell reproduction and oxygen production were monitored in 24-hour intervals for a total of 168 hours
Developing a Novel Succinct Synthetic Approach to the Modification of Alginate for Use in Biomedical Applications
No full text
Writing with Light: Analyzing the Technical and Creative Significance of Light in Photography
Full text linkLight is an essential part of photography. It\u27s technical and creative use contribute to the creation of images as well as their mood, narrative, and aesthetic. This thesis dives into the importance of light and how I have used it in my personal work
Developing ZnTPP-4AB as a Potential Photodynamic Therapy Agent
Full text linkPhotodynamic therapy is a fairly new technique used in cancer treatment involving the use of a photosensitizer and light exposure to kill malignant cells. In this research, the use of ZnTPP-4AB as a photosensitizer and red light as a source of radiant light energy was explored in terms of cytotoxicity in the A549 lung cancer cell line. ZnTPP-4AB was synthesized by replacing the carbonyl functional groups on the ZnTPPC porphyrin with 4-amino-1-butanol. Following synthesis, the new porphyrin was purified through the use of Sephadex LH-20 and G-50 in column chromatography in order to remove impurities. To confirm the identity and structure of the product, ZnTPP-4AB was analyzed through nuclear magnetic resonance, infrared, and ultraviolet-visible spectroscopies. Purity of the final compound was determined using HPLC. Lastly, the efficacy of ZnTPP-4AB as a photosensitizer was examined by analyzing its cytotoxicity when paired with red light using MTT assay on the A549 lung cancer cell line. An additional experiment was also conducted in which the A549 cells were put into a hypoxic environment (mimicking a tumor) prior to treatment with the porphyrin, and these were compared with the first MTT assay
Pediatric Anxiety Disorders and their Accommodation in the Classrom
Full text linkThis project is an exploration of the origins, neurology and impacts of pediatric anxiety disorders, as well as the research-backed best practices for their accomodation within the school classroom setting
Differences in Mental Health Disorders: The Importance of Mental Health Literacy
Full text linkThis study was conducted to see college-aged students\u27 mental health literacy with specific disorders. The disorders studied were anxiety, depression, PTSD, and substance use disorder. I predicted that certain disorders such as anxiety and depression would have a higher mental health literacy than PTSD and substance use disorder