Universidad Nacional de Barranca

Fabrication and Characterization of High-Temperature Superconducting \({Bi_{2-x}Pb_xSr_2Ca_2Cu_3O_{10+\gamma}}\) Tapes

This work reports the fabrication and comprehensive characterization of \({Bi_{2-x}Pb_xSr_2Ca_2Cu_3O_{10+\gamma}}\) superconducting tapes with coexistence of Pb-doped Bi-2223 and Bi-2212 phases, embedded in a high-purity silver matrix. The tapes were produced by the powder-in-tub...

Ethnobotanical Knowledge, Quality Assessment, and Phytochemical Evaluation of Medicinal Plants Used for Respiratory Ailments at Gamarra Market, Lima, Peru

Urban medicinal plant markets preserve traditional knowledge, but information on the quality and chemical characteristics of commercial plant materials remains limited. This study combined a descriptive cross-sectional survey of 48 medicinal plant vendors at Gamarra Market, Lima,...