The mechanical properties of FDM 3D-printed PLA parts are explored, focusing on the effect of wall line count. Magnesium oxide's effectiveness as an antifungal agent on Singgora roof tiles is also analyzed. Additional studies include the impact of Wolbachia infection in tick cell lines, the effects of various polymers on poly(o-toluidine).TiO2 nanocomposite blends, selective oxidation of cyclohexene by catalysts derived from coal bottom ash, and the use of zooplankton diversity as a water quality indicator. The journal also covers biocompatibility analysis of selective laser melting technology for orthopedic implants and the development of metal matrix composites using recycled aluminum alloy.