background: presence of heavy metals in leachate due to the biological accumulation characteristics of these materials endangered the living creatures' health especially human. purpose of this study is to study and investigate the possibility of two metals' absorption i.e, lead and cadmium from leachate by natural zeolite clinopteliolit and increase of the ability to absorb the zeolite by modif...

The adsorption ability of Dowex Optipore L493 resin modified with Aliquat 336 (MR), activated carbon modified with Aliquat 336 (MAC) and sawdust modified with Aliquat 336 (MS) for removal of Cr(VI) from aqueous solution in batch system was investigated. The effects of operational parameters such as adsorbent dosage, initial concentration of Cr(VI) ions, pH, temperature and contact time were stu...

A pergunta sobre o objeto, método e a natureza da Psicologia, partir do século XVIII, recebeu três propostas: (i) primeira, apresentada por Christian Wolff, apelava para conciliação de uma Psychologia Rationalis com Empirica baseada nas etapas Experimentalphysik no Princípio Razão Suficiente; segunda, propôs virada Fisiologia, tornando-se responsável pelo recrudescimento Psicologia como Ciência...

Symbolic methods for computing effective Hamiltonian models are presented that do not rely on assumptions of perturbations and can exponentially decrease the number terms compared with ubiquitous Schrieffer-Wolff method.

The coexistence of rheumatic mitral stenosis and Wolff-Parkinson-White syndrome is an uncommon entity. We report here one such case.

Irrigation, salinity and nitrogen (N) are the three major limiting environmental factors inmaize yield potentials especially in arid and semi-arid regions. An integrated water and N MaizeSimulation Model (MSM) was modified for salinity conditions using 2009-2010 fieldexperiments data in southwest of Iran. Irrigation levels were: I1=1.0ETc+0.25ETc as normalleaching amount, I2=0.75I1 and I3=0.5I1...