adaptive signal processing 2025-09-17T19:31:04Z
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Rain lashed against the ER windows at 2 AM when they wheeled in little Mateo. His panicked mother rattled off symptoms in Spanish while I pressed my cold stethoscope to his heaving chest. Nothing. Just the roar of his terrified sobs drowning any trace of the murmur the triage nurse swore she'd heard. My knuckles whitened around the bell – this exact scenario haunted my residency nightmares. Miss a subtle aortic stenosis now, face catastrophic consequences at dawn. The fluorescent lights hummed l