There are three main types of metadata: â¢ Descriptive metadata describes a resource for purposes such as discovery and identification.It can include elements such as title, abstract, author, and keywords. â¢ Structural metadata indicates how compound objects are put together, for example, how pages are ordered to form chapters.â¢ Administrative metadata provides information to help manage a resource, such as when and how it was created, file type and other technical information, and who can access it. Structural metadata indicates how compound objects are put together, for example, how pages are ordered to form chapters. â¢ Administrative metadata provides information to help manage a resource, such as when and how it was created, file type and other technical information, and who can access it.
Sabinâs live-virus, oral polio vaccine (administered in drops or on a sugar cube) soon replaced Salkâs killed-virus, injectable vaccine in many parts of the world.
Sugar cubes were produced in the nineteenth century. The first inventor of a process to make sugar in cube form was Moravian Jakub KryÅ¡tof Rad, director of a sugar company in DaÄice. He began sugar cube production after being granted a five-year patent for the invention on January 23, 1843.Henry Tate of Tate & Lyle was another early manufacturer of sugar cubes at his refineries in Liverpool and London.e began sugar cube production after being granted a five-year patent for the invention on January 23, 1843. Henry Tate of Tate & Lyle was another early manufacturer of sugar cubes at his refineries in Liverpool and London.