Wintering loons in South Korea face an ongoing threat from polycyclic aromatic hydrocarbons: Shifting sources and potential DNA damage.

Diving birds, particularly those sharing coastal habitats with fishing grounds, are at risk from oil pollution. Despite documented cases of bird mortality, the specific role of oil pollution in these death remains unclear. To address this knowledge gap, this study examined polycyclic aromatic hydrocarbon (PAH) contamination, its sources, and its impact on loon health.

Contact-Engineered Oxide Memtransistors for Homeostasis-Based High-Linearity and Precision Neuromorphic Computing.

Homeostasis is essential in biological neural networks, optimizing information processing and experience-dependent learning by maintaining the balance of neuronal activity. However, conventional two-terminal memristors have limitations in implementing homeostatic functions due to the absence of global regulation ability. Here, three-terminal oxide memtransistor-based homeostatic synapses are demonstrated to perform highly linear synaptic weight update and enhanced accuracy in neuromorphic computing.

Trends in Payments for Ambulatory Surgery Center Facility Fees and Surgeon Professional Fees for Hip and Knee Arthroplasty.

Background: Ambulatory surgery centers (ASCs) have been shown to deliver high-quality care to patients at major cost savings to the health care system. The objective of this investigation was to examine trends in the Medicare facility and surgeon professional fee payments for hip and knee arthroplasty.

Methods: Publicly available Medicare data were analyzed to determine professional and facility fee payments for unicompartmental knee arthroplasty (UKA), total knee arthroplasty (TKA), and total hip arthroplasty (THA) to ASCs and hospitals between 2018 and 2024.

Pain Management in Total Hip and Knee Arthroplasty: Evidence-Based and Controversial Practices in 2024.

Multimodal analgesia and anesthesia have become the gold standard in total joint arthroplasty to reduce postoperative pain and opioid consumption and minimize complications associated with opioid use. There are several elements in an effective multimodal protocol, including oral medications, periarticular injection, regional nerve blocks, and spinal and general anesthesia. Many nonopioid medications are often used, such as acetaminophen and NSAIDs.