Thoracoabdominal aortic aneurysm is a challenging disease that often requires an invasive surgical repair. Recently, a less invasive hybrid approach has been proposed to improve postoperative outcomes in high-risk patients. It consists of an open first stage where arterial visceral rerouting is obtained, using a vascular graft followed by a second stage where the remaining thoracoabdominal aorta is covered with a stent graft. Initial results using this approach seem promising. Here, we sought to describe the hybrid two-stage technique that is most frequently used in this extensive aortic pathology.
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http://dx.doi.org/10.1093/mmcts/mmw008 | DOI Listing |
BMC Musculoskelet Disord
January 2025
Department of Joint Surgery, The Second Hospital of Jilin University, Changchun, 130,000, Jilin Province, China.
Objectives: Tuberculosis of the hip joint is a common form of bone tuberculosis that can cause severe joint destruction and affect quality of life. Total hip arthroplasty (THA) is an important way to treat hip joint-related diseases. In recent years, THA has been applied to treat tuberculosis of the hip joint and has achieved certain results.
View Article and Find Full Text PDFHeliyon
January 2025
John von Neumann Faculty of Informatics, Obuda University, Budapest, Hungary.
Global adoption of wind energy continues to increase, while improving the efficiency of turbine settings requires reliable wind speed (WS) models. The latest models rely on artificial intelligence (AI) optimizations which constructs tests on a range of novel hybrid models to examine the reliability. Gradient Boosting (GB), Random Forest (RF), and Long Short-Term Memory (LSTM) are used in new combinations for data pre-processing.
View Article and Find Full Text PDFISA Trans
December 2024
Technische Universität Wien, Automation and Control Institute, Gusshausstrasse 27-29, Vienna, 1040, Austria. Electronic address:
In this paper, we tackle the challenge of accurately controlling the position of the valve spool in hydraulic 4/3 two-stage directional control valves utilized in mobile applications. The pilot valve's overlapping design often leads to a significant dead zone, negatively impacting positioning accuracy and necessitating a sophisticated controller design. To overcome these challenges, we introduce a control strategy founded on a control-oriented model.
View Article and Find Full Text PDFPLoS One
January 2025
College of Business, Southern University of Science and Technology, Shenzhen, China.
In credit risk assessment, unsupervised classification techniques can be introduced to reduce human resource expenses and expedite decision-making. Despite the efficacy of unsupervised learning methods in handling unlabeled datasets, their performance remains limited owing to challenges such as imbalanced data, local optima, and parameter adjustment complexities. Thus, this paper introduces a novel hybrid unsupervised classification method, named the two-stage hybrid system with spectral clustering and semi-supervised support vector machine (TSC-SVM), which effectively addresses the unsupervised imbalance problem in credit risk assessment by targeting global optimal solutions.
View Article and Find Full Text PDFNeural Netw
January 2025
National Key Laboratory of Human-Machine Hybrid Augmented Intelligence, Xi'an, 710054, China; Institute of Artificial Intelligence and Robotics, Xi'an Jiaotong University, Xi'an, 710054, China.
The presence of substantial similarities and redundant information within video data limits the performance of video object recognition models. To address this issue, a Global-Local Storage Enhanced video object recognition model (GSE) is proposed in this paper. Firstly, the model incorporates a two-stage dynamic multi-frame aggregation module to aggregate shallow frame features.
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