Volume 38 Number 4 (December 2012) A new species of Ranunculus from Iran Organic fertilizer use on paddy fields to reduce greenhouse gases Effect of ceftriaxone on learning and memory of hypoperfused rats Neural network model of magneto-rheological dampers Joint diagonalizers of shear matrices [Table of Contents]     Volume 38 Number 3 (September 2012) Germination and development of cryopreserved Vanda tricolor seeds Mapping the Bod2 gene associated with boron efficiency in wheat Voluntary exercise induces neuroprotection in stressed subjects Effect of SiO2/Al2O3 ratio on the synthesis of Na-x zeolite Antibacterial activity of pomegranate fruit peels and arils [Table of Contents]     Volume 38 Number 2 (June 2012) Thermo- and organic solvent-tolerant xylanase from Aspergillus Mirtazapine prevents methotrexate induced nephrotoxicity in rats Degradation of polycyclic aromatic hydrocarbons by newly isolated fungi Low-angle structure factors of βNiAl by powder X-ray diffraction Noise reduction based on Stein's unbiased risk estimate [Table of Contents]     Volume 38 Number 1 (March 2012) Asplenium cardiophyllum in Thailand GABA content in germinated brown rice Novel phenanthrene-degrading bacteria isolated from seawater KCl/CaO catalysing methanolysis of soybean oil for biodiesel Synthesis of perovskite-type LaCoO3 catalyst [Table of Contents]