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http://dx.doi.org/10.1007/s00402-024-05450-y | DOI Listing |
Cureus
November 2024
Ophthalmology, Moorfields Eye Hospital, London, GBR.
We report a case of spontaneous total iris avulsion that occurred during corneal wound hydration following an uneventful phacoemulsification procedure. An 86-year-old woman underwent cataract surgery on her right eye, during which a single-piece acrylic intraocular lens (Bausch and Lomb Akreos Adapt Advanced Optics, Bausch and Lomb Incorporated, Rochester, NY, USA) was implanted in the bag, and the viscoelastic material was removed. During corneal wound hydration, total iris avulsion was observed, with the iris prolapsing out of the anterior chamber through the main wound.
View Article and Find Full Text PDFPhotoacoustics
February 2025
College of Control Science & Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.
Traditional beat frequency quartz-enhanced photoacoustic spectroscopy (BF-QEPAS) are limited by short energy accumulation times and the necessity of a decay period, leading to weaker signals and longer measurement cycles. Herein, we present a novel optomechanical energy-enhanced (OEE-) BF-QEPAS technique for fast and sensitive gas sensing. Our approach employs periodic pulse-width modulation (PWM) of the laser signal with an optimized duty cycle, maintaining the quartz tuning fork's (QTF) output at a stable steady-state level by applying stimulus signals at each half-period and allowing free vibration in alternate half-periods to minimize energy dissipation.
View Article and Find Full Text PDFCrit Care
December 2024
Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.
Background: Entropy quantifies the level of disorder within a system. Low entropy reflects increased rigidity of homeostatic feedback systems possibly reflecting failure of protective physiological mechanisms like cerebral autoregulation. In traumatic brain injury (TBI), low entropy of heart rate and intracranial pressure (ICP) predict unfavorable outcome.
View Article and Find Full Text PDFGeohealth
January 2025
Institute for Atmospheric and Climate Science, ETH Zurich Zurich Switzerland.
Heatwaves pose a range of severe impacts on human health, including an increase in premature mortality. The summers of 2018 and 2022 are two examples with record-breaking temperatures leading to thousands of heat-related excess deaths in Europe. Some of the extreme temperatures experienced during these summers were predictable several weeks in advance by subseasonal forecasts.
View Article and Find Full Text PDFJ Natl Cancer Cent
December 2024
Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences Institute, and Department of Orthopaedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Bone marrow is pivotal for normal hematopoiesis and immune responses, yet it is often compromised by malignancies. The bone microenvironment (BME), composed of bone and immune cells, maintains skeletal integrity and blood production. The emergence of primary or metastatic tumors in the skeletal system results in severe complications and contributes significantly to cancer-related mortality.
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