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The Learning Crisis in the United States Three Years After COVID-19
Get PDFThe COVID-19 pandemic caused widespread disruptions to education, with school closures affecting over one billion children. These closures, aimed at reducing virus transmission, resulted in significant learning losses, particularly in mathematics and science. Using United States data from TIMSS, this study analyzes the impact of school closure on learning outcomes. The losses amount to 0.36 SD for mathematics and 0.16 SD for science. The declines are similar across grades. The average decline in mathematics performance among U.S. students is substantially greater than the global average. n science, the decline observed among U.S. students does not significantly differ from the global trend. Girls experienced greater deviations from long-term trends than boys across both subjects and grade levels, reversing long term trends that once favored girls. Robustness checks confirm that pandemic-related school closures caused the decline in mathematics, while the downturn in science had already begun before COVID-19
Swarm 3D Printing Platform
Get PDFA system that uses autonomous robots for 3D manufacturing an object where the robots have different tool heads for performing different manufacturing operations
Nectarine Tree Named ‘A-662CN’
Get PDFA new and distinct nectarine tree named ‘A-662CN’ which originated from a hand-pollinated cross of ‘A-421CN’ nectarine (female parent; unreleased breeding selection) x ‘A-334CN’ nectarine (male parent; unreleased breeding selection) made in 1993 is described. This new nectarine tree cultivar can be distinguished by its yellow, standard-acid, firm flesh, early-season ripening, high soluble solids content, outstanding flavor, good postharvest performance, and moderate tolerance to bacterial spot
Guiding Principles for Successful AI Integration & Agentic AI: The Next Step in AI Evolution
Get PDFAI has revolutionized various processes throughout the value chain. When taking a focused look at Marketing and Supply chain functions, however, the two largest retailers in the world, Walmart and Amazon, have led the charge towards AI modernity within implementation. With AI’s impact on business taking the forefront of the collective consciousness, innovations have seemed to emerge daily. Agentic AI is the newest “flavor of the month” that is promising to further optimize and provide value to businesses and their different needs. With this advancement in AI reasoning, the realm of innovative possibilities has expanded greatly. This in combination with the lessons learned from Walmart and Amazon’s effective AI implementation represents a promising way of further automating and combining marketing and supply chain functions
Designing and Installing a Disability Accessible Teaching Garden
Get PDFAs horticulture becomes increasingly popular as a subject, activity, and form of therapy, its inclusivity has not kept up with the pace of its growth. In order to address the need for inclusivity and accessibility, gardens must adopt universal design. Individuals with special needs continuously face discrimination. While horticulture therapy has long been studied and catered to primarily neurotypical and able-bodied individuals, there is limited research on creating gardens specifically to include those with disabilities. This project aimed to create a garden that could serve the needs of all participants, regardless of their ability and sensory needs. The garden was constructed at Camp Barnabas, a summer camp for children and adults with special needs, to allow for an extensive range of feedback in terms of age and ability. The aim was to create enough diversity within the garden to be accessible and inclusive to all, to provide foundational designs to be expanded upon by Camp Barnabas or other entities, and to provide examples that people can adapt to their own public or private gardens
Relating Strength, Time, and Temperature for BCSA Cement Concrete Using the Maturity Method
Get PDFBelite calcium sulfoaluminate (BCSA) cement is an extension of CSA cement technology designed to provide early setting times and rates of strength gain with reduced environmental impact compared with portland cement. However, its application in the field of structural concrete is widely unexplored. To that end, this paper details research conducted at the University of Arkansas Civil Engineering Research and Education Center (CEREC) exploring the rates of strength gain in concrete samples created using BCSA cement relative to various temperatures and ages. Following the practices outlined in ASTM C1074, the maturity method, compression strength tests were conducted on the aforementioned samples with the ultimate goal of projecting the strength and viability of BCSA cement concrete in structural concrete