Publications by authors named "S Estes"
Designing a highly efficient, low-cost, sustainable electrocatalyst for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) through water splitting is a current challenge for renewable energy technologies. This work presents a modified sol-gel route to prepare metal-ion(s) doped cerium oxide nanostructures as an efficient electrocatalyst for overall water splitting. Nickle (Ni) and iron (Fe) co-doping impacts the morphology in cerium oxide resulting in 5 nm nanoparticles with a mesoporous-like microstructure.
View Article and Find Full Text PDFCommunities neighboring monoculture plantations are vulnerable to different forms of pollution associated with agro-industrial operations. Herein, we examine the case of El Tiple, a rural Afro descendant community embedded within one of the largest sugarcane plantations in the Americas. We implemented a participatory approach to assess water pollution, exposure via water ingestion, and non-carcinogenic health risks associated with the use of local water sources available to the community.
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- Neutrophil hyperactivity and NET release are key factors in the autoimmune disease antiphospholipid syndrome (APS).
- Research shows that neutrophils from APS patients have a higher reliance on glycolysis compared to those from healthy individuals, particularly in cases linked to microvascular disease.
- Inhibiting glycolysis or the pentose phosphate pathway (PPP) not only reduces NET release and reactive oxygen species production in neutrophils but also significantly decreases thrombosis in mice models of APS.
In response to unwaveringly high attrition from STEM pathways, STEM Intervention Programs (SIPs) support STEM students in effort to increase retention. Using mixed methods (survey and focus groups), we studied students at one university who were either supported or unsupported by SIPs to understand how students may differ in experiences believed to contribute to STEM persistence. We evaluated: sense of belonging, scientific self-efficacy, scientific community values, scientific identity, and STEM involvement.
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- Salt marshes are crucial coastal ecosystems that filter nutrients and pollutants, with the mid-Atlantic U.S. marshes exhibiting unique geochemical behaviors compared to other global estuaries.
- Research on the southeastern U.S. salt marsh revealed that metal concentrations and bioaccumulation varied significantly based on marsh location and species, with high marsh zones showing lower sediment concentrations but higher biotic accumulation factors.
- The study found specific patterns in metal accumulation among different species, particularly in bivalves, providing insights for biomonitoring and potential remediation strategies like phytoremediation, highlighting the need for targeted environmental management.