aPS

APS is an acronym that can refer to several organizations, systems, and concepts across different domains. Common uses include:

- American Physical Society: a nonprofit professional organization for physicists in the United States, founded in 1899. It publishes journals, including the Physical Review series, and sponsors meetings and awards.

- antiphospholipid syndrome: an autoimmune disorder characterized by recurrent thrombosis and pregnancy-related complications, associated with antiphospholipid antibodies. Diagnosis relies on clinical criteria and laboratory tests; treatment often involves anticoagulation and risk-factor management.

- Australian Public Service: the federal civil service of Australia, responsible for policy advice and delivery of government programs. It is overseen by the Australian Public Service Commission and related laws and standards.

- Advanced Planning and Scheduling: a class of software or methodologies that optimize manufacturing and supply chain planning, integrating demand forecasts, capacity, materials, and production scheduling.

- Active Pixel Sensor: a CMOS image sensor architecture used in many digital cameras and devices, offering integrated electronics and typically lower power consumption than some alternatives.

- Advanced Photo System: a former film format introduced in the 1990s that offered multiple aspect ratios and print sizes; largely displaced by digital photography but historically significant in imaging.

- Adult Protective Services: government programs that protect vulnerable adults from abuse, neglect, or exploitation, often through investigation and coordination with social services.

- Arizona Public Service: a major electric utility serving much of Arizona, operating as a subsidiary of Pinnacle West Capital Corporation and providing electricity and related grid services.