Summary iq.unesp.br/ecletica | Vol. 45 | n. 3 | 2020 | SUMMARY EDITORIAL BOARD ............................................................................................................................................. 3 EDITORIAL ......................................................................................................................................................... 4 DATABASE ......................................................................................................................................................... 5 INSTRUCTIONS FOR AUTHORS ......................................................................................................................... 6 ORIGINAL ARTICLES Complexes of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) with ligand formed by condensation reaction of isatin with glutamic acid ................................................................................................................................................. 12 Wiesława Ferenc, Dariusz Osypiuk, Jan Sarzyński, Halina Głuchowska Hydrodeoxygenation and pyrolysis of free fatty acids obtained from waste rendering fat ........................ 28 Martyna Murat, Jaromír Lederer, Alena Rodová, José Miguel Hidalgo Herrador Determination of paracetamol in pharmaceutical samples by spectrophotometric method ..................... 37 Chand Pasha Major and minor head losses in a hydraulic flow circuit: experimental measurements and a Moody’s diagram application .............................................................................................................................................. 47 Aline Amaral Madeira EDUCATION IN CHEMISTRY A comprehensive review of database resources in chemistry ........................................................................ 57 Syed Sauban Ghani http://revista.iq.unesp.br/ojs/index.php/ecletica/index