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A tracking and monitoring system for transplanted organs during the transport phase.
Annu Int Conf IEEE Eng Med Biol Soc
July 2024
Modern medicine has recognized organ and tissue transplantation as one of the most outstanding and promising advances. However, the demand for tissues and organs to be transplanted far exceeds the available supply. Due to this growing need, the problems inherent to the transplantation process have been pointed out in recent years.
View Article and Find Full Text PDFRevisiting the Formulation of Charged Defect in Solids.
Phys Rev Lett
February 2025
Rensselaer Polytechnic Institute, Department of Physics, Applied Physics and Astronomy, Troy, New York 12180, USA.
Defect physics is at the heart of microelectronics. By keeping track of the reference energy in total energy calculations, we explicitly show that the "potential alignment" correction vanishes, and the classic Makov-Payne correction yields accurate results. From linear response theory, we further formulate an accurate expression for the quadrupole correction.
View Article and Find Full Text PDFFollow the flower: approach-flight behaviour of bumblebees landing on a moving target.
J Exp Biol
February 2025
Experimental Zoology Group, Wageningen University & Research, De Elst 1, 6708WD Wageningen, The Netherlands.
While landing on flowers, pollinating insects often have to deal with flower movement caused by wind. Here, we determined the landing performance of bumblebees on a moving artificial flower, and how they use their visual-motor system to control their landings. To do this, we built an experimental setup containing a physical model of a flower, moving sideways using sinusoidal kinematics at various oscillation frequencies (up to 0.
View Article and Find Full Text PDFCo-evolution of pathogen-host interactions with vertical transmission can produce bistable outcomes.
J Theor Biol
February 2025
Department of Mathematics, Western University, 1151 Richmond Street, London, Ontario, Canada. Electronic address:
Vertical transmission is widely predicted to select for reduced virulence of pathogens. Recent theory cast doubt on this prediction by showing that the evolutionary response of the host to vertical transmission can lead to severe disease outcomes. That theory, however, takes a simplified view of host population dynamics by assuming pathogen-induced mortality alone inhibits host population growth.
View Article and Find Full Text PDFAn improved A* algorithm for generating four-track trajectory planning to adapt to longitudinal rugged terrain.
Sci Rep
February 2025
School of Control and Mechanical Engineering, Tianjin Chengjian University, Tianjin, 300384, China.
A four-wheeled robot can stride through longitudinal trenches to adapt to terrain challenges and effectively reach the target position in unstructured space, thus achieving navigation in rough terrain. Establishing a trajectory planning method to plan four paths simultaneously is necessary. Firstly, a grid map is based on the longitudinal trench terrain.
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