Self Harm: Rare Types. Rare types of medical conditions and diseases in related medical categories: Brain & Neurological Disorders: Rare Types: Adult ADHD -- Rare Types. ADHD -- Rare Types. Alzheimer Disease -- Rare Types. Migraine -- Rare Types. Concentration Disorders -- Rare Types.
Public works (or internal improvements historically in the United States) are a broad category of infrastructure projects, financed and constructed by the government, for recreational, employment, and health and safety uses in the greater community.
Public goods are services provided by the government whose benefits extend to a group of individuals or the society as a whole. There are two different types of public goods. These include pure public goods and impure public goods.