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http://dx.doi.org/10.1038/524291b | DOI Listing |
Sci Rep
January 2025
Department of Orthopaedic Surgery, The First Affiliated Hospital of Naval Medical University: Changhai Hospital, Shanghai, China.
Short-stem total hip arthroplasty (SHA) has become popular because it preserves femoral bone stock and enables the use of short femoral stems in revision total hip arthroplasty (THA). However, no study has evaluated whether a short stem in revision THA, replacing a standard stem, can provide adequate primary stability to facilitate osseous integration. In this biomechanical study, a metaphyseal anchoring SHA (Tri-Lock BPS) stem and a standard THA (Corail) stem were implanted into ten composite femurs and loaded dynamically from 300 to 1700 N with 1 Hz.
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January 2025
College of Information Science and Engineering, Shanxi Agricultural University, Jinzhong, 030800, China.
To address the challenges of unbalanced class labels with varying maturity levels of tomato fruits and low recognition accuracy for both fruits and stems in intelligent harvesting, we propose the YOLOX-SE-GIoU model for identifying tomato fruit maturity and stems. The SE focus module was incorporated into YOLOX to improve the identification accuracy, addressing the imbalance in the number of tomato fruits and stems. Additionally, we optimized the loss function to GIoU loss to minimize discrepancies across different scales of fruits and stems.
View Article and Find Full Text PDFMedicine (Baltimore)
November 2024
Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, China.
Studies have shown that uremia, renal failure and heart failure (HF) are closely related. However, whether this association reflects a causal effect is still unclear. The aim of this study was to evaluate the causal effect of uremic metabolites or toxins on HF.
View Article and Find Full Text PDFCBE Life Sci Educ
March 2025
Department of Genetics, University of Georgia, Athens, GA 30602.
Teaching evaluation at many institutions is insufficient to support, recognize, and reward effective teaching. We developed a long-term intervention to support science, technology, engineering, and mathematics (STEM) department heads in advancing teaching evaluation practices. We describe the intervention and systematically investigate its impact on departmental practices within a research-intensive university.
View Article and Find Full Text PDFPLoS 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.
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