We report the case of a 68-year-old man with a fracture of the catheter of a port-a-cath, dislodged into the right atrium. Two days after the diagnosis, the fragment embolized into the lobar artery of the left lower lung lobe. The catheter was removed using a gooseneck snare.
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http://dx.doi.org/10.1701/975.10609 | DOI Listing |
Cogn Neurodyn
December 2024
College of Electronic and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002 China.
Currently, the research in memristor-based associative memory neural networks pays more attention to positive stimuli and lays less attention to negative stimuli. Negative stimuli are superior to positive stimuli in some ways, but lack the associated circuit implementation. In this paper, a memristor-based circuit design of avoidance learning with time delay is designed.
View Article and Find Full Text PDFISA Trans
December 2024
School of Electronics and Information Engineering, University of Science and Technology Liaoning, Anshan 114051, China. Electronic address:
During the batch process, the need for security control is becoming increasingly urgent with the gradual penetration of network control technology. For small time delay batch processes subject to deception attacks, an iterative learning robust security predictive tracking control approach is developed. Reviewing previous studies for iterative learning control, the issue that the repetitive character of the batch process would mask the characteristics of deception attacks was not considered.
View Article and Find Full Text PDFRev Sci Instrum
July 2024
State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
Anal Chem
July 2024
Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States.
Applications involving two-photon activation, including two-photon fluorescence imaging, photodynamic therapy, and 3D data storage, require precise knowledge of the two-photon absorption (2PA) spectra of target chromophores. Broadband pump-probe spectroscopy using femtosecond laser pulses provides wavelength-dependent 2PA spectra with absolute cross sections, but the measurements are sometimes complicated by cross-phase modulation effects and dispersion of the broadband probe. Here, we introduce a single-shot approach that eliminates artifacts from cross-phase modulation and enables more rapid measurements by avoiding the need to scan the time delay between the pump and the probe pulses.
View Article and Find Full Text PDFCureus
May 2024
Department of Hand-Plastic, Reconstructive and Burn Surgery, Berufs-Genossenschaft Klinik Tuebingen, University of Tuebingen, Tuebingen, DEU.
Introduction Managing open lower extremity fractures is challenging, with potential complications such as amputation and infection. The aim of the study was to determine whether the time delay and initial treatment of the patients treated in a non-specialized hospital before being transferred to a dedicated level I trauma center led to a worse outcome. Methods Retrospective data from 44 patients (37 males and seven females) undergoing free tissue transfer for lower extremity open fractures from January 2017 to December 2022 were analyzed.
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