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Creators/Authors contains: "Schwartz, Zachary"

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  1. Schussler, Elisabeth E (Ed.)
    In professional development (PD), who the learners are becomes a central feature that influences not only their learning, but also that of those around them. Participant identities, expectations, and teaching philosophies all influence the success of PD. In 2019, Zagallo and colleagues developed a set of personas to characterize how instructors show up in these settings. We are expanding on this prior study to include instructors from diverse institution types participating in a different PD context. To validate the existing personas and generate potential new personas, we followed Zagallo's stepwise procedure that included the collection of multiple types of data (interview transcripts, PD observations, meeting observations) over a 2-y period, qualitative analysis and triangulation of data, creation of skeletons that could be further developed into personas, description and refinement of skeletons into personas, and validation of the personas. Themes from the original study were also captured in this study: knowledge of students, teaching values, approaches to innovations, and perceived barriers. Four personas from the original paper were refined, and two new personas (Riley the Rookie and Ash the Advocate) were identified; both arose from institutional contexts not present in the prior research. 
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    Free, publicly-accessible full text available December 1, 2026
  2. The Turf Transplant Experiment was set up in the summer of 2024. Paired experimental sites were established in two tundra community types - dry meadow and moist meadow - with one site of each community type pair in a lower elevation/warmer area and one site in a higher elevation/cooler area. Subplot turfs (25 cm^2) were transplanted (1) between sites of the same community type at different elevations/temperatures, (2) between plots within the same site or (3) left in place as non-transplant controls. Biogeochemical data from time 0 was taken in pre-established plots outside of the subplots. Coordinates to the biogeochemical plots can be found in this package. This data package contains gravimetric soil moisture measurements. 
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  3. A concise strategy to prepare polycyclic heteroaromatics involving a deaminative contraction cascade is detailed. 
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  4. Plant polyphenols, such as the African potato (Hypoxis hemerocallidea)-derived bis-catechol rooperol, can display promising anticancer activity yet suffer from rapid metabolism. Embarking upon a program to systematically examine potentially more metabolically stable replacements for the catechol rings in rooperol, we report here a general, scalable synthesis of rooperol and analogues that builds on our previous synthetic approach incorporating a key Pd-catalyzed decarboxylative coupling strategy. Using this approach, we have prepared and evaluated the cancer cell cytotoxicity of rooperol and a series of analogues. While none of the analogues examined here were superior to rooperol in preventing the growth of cancer cells, analogues containing phenol or methylenedioxyphenyl replacements for one or both catechol rings were nearly as effective as rooperol. 
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