UC

UC is an abbreviation that may refer to several different entities or concepts.

- University of California (UC): the public university system serving the state of California. Established in 1868, it comprises ten campuses and is governed by the Board of Regents. The UC system emphasizes research, graduate instruction, and public service, with campuses including UC Berkeley and UCLA as leading research universities. The system coordinates statewide policies in areas such as admissions, funding, and athletics through a central administration, while each campus maintains its own campus culture and programs.

- Ulcerative colitis (UC): a chronic inflammatory bowel disease that causes inflammation and ulcers in the lining of the colon and rectum. Symptoms commonly include abdominal pain, diarrhea, and blood in the stool, sometimes with weight loss and fatigue. Diagnosis typically involves colonoscopy, biopsies, and imaging. Treatments aim to reduce inflammation and induce and maintain remission, using aminosalicylates, corticosteroids, immunomodulators, and biologic therapies. In long-standing disease, there is an elevated risk of colorectal cancer, requiring regular surveillance.

- Unified communications (UC): a set of integrated communication and collaboration technologies in business settings. A UC system combines voice calling, video conferencing, instant messaging, and presence information on a single platform or linked suite of tools, often delivered as on-premises software or cloud-based services (UCaaS). UC aims to improve coordination, productivity, and responsiveness across distributed teams and devices, and is a common component of modern enterprise IT strategies.