This investigation of undergraduates' heterogeneous science identity trajectories within a gateway chemistry course identified three latent classes () using growth mixture modeling. Underrepresented minorities were more likely to exhibit science identities versus patterns. Students with higher perceived competence were more likely classified into the class compared to the other classes. Students classified into the class scored significantly higher on the final exam and appeared to be more likely to remain in a STEM major across fall and spring semesters compared to the other two classes. Results suggest that some students' identities shift within a single semester and supporting science perceived competence before college may support students' science identity development.
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http://dx.doi.org/10.1016/j.cedpsych.2019.01.004 | DOI Listing |
PLoS One
January 2025
Graduate Group in Science & Mathematics Education (SESAME), University of California-Berkeley, Berkeley, California, United States of America.
Participation in technical/research internships may improve undergraduate graduation rates and persistence in science, technology, engineering, and mathematics (STEM), yet little is known about the benefits of these activities a) for community college students, b) when hosted by national laboratories, and c) beyond the first few years after the internship. We applied Social Cognitive Career Theory (SCCT) to investigate alumni perspectives about how CCI at Lawrence Berkeley National Laboratory (LBNL) impacted their academic/career activities. We learned that alumni had low confidence and expectations of success in STEM as community college students.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Department of Primate Behavioral Ecology, Institute of Biology, Leipzig University, Leipzig 04103, Germany.
Biological relatedness is a key consideration in studies of behavior, population structure, and trait evolution. Except for parent-offspring dyads, pedigrees capture relatedness imperfectly. The number and length of identical-by-descent DNA segments (IBD) yield the most precise relatedness estimates.
View Article and Find Full Text PDFACS Infect Dis
January 2025
Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais 36036-900, Brazil.
Schistosomiasis is the infection caused by and constitutes a worldwide public health problem. The parasitological recommended method and serological methods can be used for the detection of eggs and antibodies, respectively. However, both have limitations, especially in low endemicity areas.
View Article and Find Full Text PDFJ Chem Theory Comput
January 2025
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.
Green's function theory has emerged as a powerful many-body approach not only in condensed matter physics but also in quantum chemistry in recent years. We have developed a new all-electron implementation of the BSE@GW formalism using numeric atom-centered orbital basis sets (Liu, C. 2020, 152, 044105).
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