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Photogrammetric determination of movement speed of invasive Indo-Pacific lionfish in the Florida Keys.
PeerJ
January 2025
Department of Oceanography and Coastal Sciences, Louisiana State University and Agricultural and Mechanical College, Baton Rouge, LA, United States of America.
As a key determinant of how efficiently lionfish ( sp.) locate and capture prey, swimming speed plays a crucial role in shaping the predator-prey interactions and broader ecological dynamics within the invaded ecosystems. Swimming speed on a small temporal and spatial scale is difficult to measure because of the need for precise measurements of both distance and duration of the behavior.
View Article and Find Full Text PDFVolume and Distribution of Early Knee Effusion After TKA with a PEEK-Based Knee Prosthesis: Correlation with Changes in Serum Inflammation Marker Levels, Knee Functional Score, and Range of Motion.
J Bone Joint Surg Am
January 2025
Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China.
Background: Early knee effusion is a common phenomenon after total knee arthroplasty (TKA), with potential clinical implications. Unlike traditional alloy knee prostheses, the polyetheretherketone (PEEK) knee system has radiographic transparency on magnetic resonance (MR) scans, which allows analysis of prosthetic knee effusion. We aimed to identify the distribution and volume of knee effusion after TKA with the PEEK prosthesis with use of MR imaging and to analyze whether dynamic changes in effusion were correlated with serum inflammatory marker changes and knee function recovery.
View Article and Find Full Text PDFThe Da Vinci Robot, a promising yet underused minimally invasive tool for spine surgery: A scoping review of its current role and limits.
Neurochirurgie
December 2024
Aix Marseille Univ, APM, UH Timone, Department of Neurosurgery, Marseille, France.
Background: The Da Vinci robot ® (DVR), released in the early 2000s, provided a set of innovation aiming at pushing minimally invasive surgery forward. Its stereoscopic magnified visualization camera, motions that exceed the natural range of the human hand, or tremor reduction enhanced the surgeon's skills and added value in many surgical fields.
Objective: To map the current use of the DVR in spine surgery, identify gaps, address its limits and future perspectives.
Binocular contributions to motion detection and motion discrimination during locomotion.
PLoS One
December 2024
Centre for Vision Research, York University, Toronto, ON, Canada.
During locomotion, the visual system can factor out the motion component caused by observer locomotion from the complex target flow vector to obtain the world-relative target motion. This process, which has been termed flow parsing, is known to be incomplete, but viewing with both eyes could potentially aid in this task. Binocular disparity and binocular summation could both improve performance when viewing with both eyes.
View Article and Find Full Text PDFGait analysis is essential for evaluating walking patterns and identifying functional limitations. Traditional marker-based motion capture tools are costly, time-consuming, and require skilled operators. This study evaluated a 3D Marker-less Motion Capture (3D MMC) system using pose and depth estimations with the gold-standard Motion Capture (MOCAP) system for measuring hip and knee joint angles during gait at three speeds (0.
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