1 Around 10% of men is affected by pearly penile papules.  After masturbation or sexual intercourse hard swelling might appear near the foreskin, in the shaft of the head of the penis. This swelling is called lymphocele, and is caused by temporary blockage of the lymphatic channels at the area described.
A key-value store, or key-value database, is a data storage paradigm designed for storing, retrieving, and managing associative arrays, a data structure more commonly known today as a dictionary or hash. Dictionaries contain a collection of objects, or records, which in turn have many different fields within them, each containing data.
direct-attached storage (DAS) Direct-attached storage (DAS) is computer storage that is connected to one computer and not accessible to other computers. For an individual computer user, the hard drive is the usual form of direct-attached storage. Letters from the Editor: 2016 State of Storage.