Fundamental Concepts.- Fuzzy Ideals of Semirings.- Fuzzy Subsemimodules over Semirings.- Fuzzy k-Ideals of Semirings.- Fuzzy Quasi-ideals and Fuzzy Bi-ideals in Semirings.- (∈,∈ ∨q)-Fuzzy Ideals in Semirings.- (∈,∈∨q)-Fuzzy Ideals in Semirings.- Fuzzy Ideals with Thresholds.- On fuzzy LD-bigroupoids.- Semiring Parsing.- Coverings and Decompositions of Semiring-Weighted Finite Transition Systems.