Many small colleges rely on honor systems to handle exams and student conduct.

The researcher evaluated several logical systems to determine which one best modeled human reasoning.

Different societies develop distinct moral systems to address conflicts and cooperation.

Researchers compared the lymphatic systems of several mammal species to better understand immune function.

Recent studies suggest that endocrine systems are more interconnected with the nervous system than previously thought.

Materials scientists compare different crystal systems to predict how a mineral will grow.

The city's aging drainage systems struggled to cope with the sudden downpour, leading to flooded streets and basements.

Scientists mapped how root systems adapt to drought across different soil types.

Airport systems must be updated to handle the rise in passenger traffic and new security threats.

The building's fire systems were inspected thoroughly before the tenants moved in.