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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11661482 | PMC |
| http://dx.doi.org/10.3238/arztebl.m2023.0148 | DOI Listing |
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Influence of surfactant type on the microstructure, mechanical and thermal properties of phenolic foams.
Sci Rep
January 2025
School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), P.O. Box 16844-13114, Tehran, Iran.
Surfactant chemistry can affect the phenolic foam (PF) properties by controlling the collision and combination of the created bubbles during foam production. The study was accomplished using two surfactant families, nonionic: polysorbate (Tween80) and anionic: sodium and ammonium lauryl sulfates (SLS30 and ALS70) and sodium laureth sulfate (SLES270) to manufacture PF foams. Tween80 and SLS30 resulted in foams with the lowest and highest densities, 20.
View Article and Find Full Text PDFAirspace closures due to reentering space objects.
Sci Rep
January 2025
Department of Political Science, University of British Columbia, Vancouver, BC, Canada.
Uncontrolled reentries of space objects create a collision risk with aircraft in flight. While the probability of a strike is low, the consequences could be catastrophic. Moreover, the risk is rising due to increases in both reentries and flights.
View Article and Find Full Text PDFImpacting Dynamics of Droplets on Cylindrical Superhydrophobic Surfaces Decorated with a Convex Ridge.
Langmuir
January 2025
China Jilian University, Xueyuan Street,258, Hangzhou 310018 Zhejiang, China.
This work investigates the dynamic behavior of droplets on superhydrophobic cylindrical surfaces with a convex ridge through experimental analysis, focusing on the effects of varying the diameter ratio ( = ) and the ridge width ratio (δ = ). Impact morphology diagrams are established to reveal the morphology transition of the droplet as a function of and δ. The splash threshold is obtained, and the energy loss during the collision process is analyzed by examining the recovery coefficient and the splitting angle, with the splitting threshold found to be dependent on δ.
View Article and Find Full Text PDFThermal ablation versus surgical resection of small-size colorectal liver metastases (COLLISION): an international, randomised, controlled, phase 3 non-inferiority trial.
Lancet Oncol
January 2025
Department of Radiology and Nuclear Medicine, Amsterdam UMC location VUmc, Amsterdam, Netherlands. Electronic address:
Background: For patients with small-size colorectal liver metastases, growing evidence suggests thermal ablation to be associated with fewer adverse events and faster recovery than resection while also challenging resection in terms of local control and overall survival. This study assessed the potential non-inferiority of thermal ablation compared with surgical resection in patients with small-size resectable colorectal liver metastases.
Methods: Adult patients (aged ≥18 years) from 14 centres in the Netherlands, Belgium, and Italy with ten or fewer small-size (≤3 cm) colorectal liver metastases, no extrahepatic metastases, and an Eastern Cooperative Oncology Group performance status of 0-2, were stratified per centre, and according to their disease burden, into low, intermediate, and high disease burden subgroups and randomly assigned 1:1 to receive either thermal ablation (experimental group) or surgical resection (control group) of all target colorectal liver metastases using the web-based module Castor electronic data capture with variable block sizes of 4, 6, and 8.
Automatic path planning for pelvic fracture reduction with multi-degree-of-freedom.
Comput Methods Programs Biomed
January 2025
Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Beijing, China.
Background And Objectives: Computer-assisted orthopedic surgical techniques and robotics has improved the therapeutic outcome of pelvic fracture reduction surgery. The preoperative reduction path is one of the prerequisites for robotic movement and an essential reference for manual operation. As the largest irregular bone with complicated morphology, the rotational motion of pelvic fracture fragments impacts the reduction process directly.
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