. . . . "The medium in which the actual Object Of Interest is mixed, embedded, suspended, or entailed in some way - such that a process is required to extract or separate it before an observation can be made" . . . "Background matrix" . "Matrix" . . . . "Anastasios Papadiamantis" . "2025-07-24T08:28:39.982Z"^^ . . . . . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLrgIs0zCX11YIad1vf4iKrxmu/l3phA4ES5BixalXnpd5LD/znJ3GlB95mZ/KOrhGhBZyj39QaZVpQQuPTsqmigo4blW6FtTc0iWkFSNEj6dyWeavF9nJ0cSr7k6KEx3i8ue+O53k2lmF/UzG/w0cOSV71T3qVBFPupy5WMCTwwIDAQAB" . "RAY8kvO7oaRZpAJNKgJX68sFo7qyKvS3yD33hoR+xqtEFNwF7vCBc8wbXHNzgzVdJBjNaYzv+DP0i5t5Cqmj6mzVx96NnHhyUsMR5vPWl3nRk/NuDSiDVEZ/c80VV6c7i7WS/1yUrFgJuw71M4QTSL59g5CPCtuvuJ0ae4mTTn0=" . . .