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Neuronal segmentation in cephalopod arms.
Nat Commun
January 2025
Committee on Development, Regeneration and Stem Cell Biology, The University of Chicago, Chicago, IL, USA.
Prehensile arms are among the most remarkable features of the octopus, but little is known about the neural circuitry controlling arm movements. Here, we report on the cellular and molecular organization of the arm nervous system, focusing on its massive axial nerve cords (ANCs). We found that the ANC is segmented.
View Article and Find Full Text PDFThe shape of cleaved tethered membranes.
Soft Matter
January 2025
Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.
A remarkable property of flexible self-avoiding elastic surfaces (membranes) is that they remain flat at all temperatures, even in the absence of a bending rigidity or in the presence of active fluctuations. Here, we report numerical results of these surfaces wherein we alter their topology by systematically cleaving internal bonds. While it is known that a random removal of membrane bonds does not disrupt the overall extended shape of the membrane, we find that cleaving an elastic surface with longitudinal parallel cuts leads to its systematic collapse into a number of complex morphologies that can be controlled by altering the number and length of the inserted cuts.
View Article and Find Full Text PDFPrevalence of and risk factors analysis for post-intensive care syndrome among survivors of critical care during 3-month longitudinal follow-up.
Nurs Crit Care
January 2025
Intensive Care Unit, Affiliated Hospital of Jining Medical University, Jining, China.
Background: Patients discharged from the intensive care unit (ICU) can experience post-intensive care syndrome (PICS), which is comprised of cognitive, physical and psychological impairments.
Aim: The objective of this study was to identify the prevalence of and risk factors associated with all three domains of PICS at the first and third month after ICU discharge.
Design: A prospective descriptive-analytic study was conducted in two ICUs of a Chinese university hospital.
Simple and safe redo sternotomy technique using the ultrasonic bone scalpel for patients with an embedded calcified conduit.
Multimed Man Cardiothorac Surg
January 2025
Hibino Laboratory, University of Chicago Medicine, Chicago, IL, USA.
With the increase of patients with adult congenital heart disease, the number of high-risk multiple redo sternotomies is increasing. Calcified conduit embedded in the sternum or large vessels attached to the sternum presents an especially challenging case. This video tutorial presents a simple safe redo sternotomy technique using an ultrasonic bone scalpel in such high-risk patients.
View Article and Find Full Text PDFRole of data-driven regional growth model in shaping brain folding patterns.
Soft Matter
January 2025
School of Environmental, Civil, Agricultural and Mechanical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA.
The surface morphology of the developing mammalian brain is crucial for understanding brain function and dysfunction. Computational modeling offers valuable insights into the underlying mechanisms for early brain folding. Recent findings indicate significant regional variations in brain tissue growth, while the role of these variations in cortical development remains unclear.
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