Romulea jezzinis K. Addam & M. Bou-Hamdan sp. nov from Kfar Houneh and Aaramta (Jezzine District) libanotica Jabal Niha Tawmat (Al Shouf are nominated as novel species. Not only do the new two species vary other existing in terms of taxonomic structures such (corm, tunic, leaves, shape perianth, segment flower, flower tube, style, filaments, anthers, seeds, color pollen others), but they al...

Following the end-Permian mass extinction, ammonoids were among the fastest clades to recover (Brayard et al., 2006), with at least two diversification phases during the Early Triassic. Diversification first peaked during the Smithian and was followed by a marked extinction phase at the end of this (sub-)stage. It was then followed by a second and massive evolutionary radiation during the Spath...

introduction the ramand area, southwest of buin- zahra, about 60 kilometers from qazvin, lies in the igneous belt of the urmieh-dokhtar region, the main structural zone of north-central iran. rhyodacite and rhyolite lava flows are the principal host rocks of mineralization and alteration of the area, most of which occurs in faulted and brecciated zones alongmaj or northwest-trending fault syste...

introduction atmosphere health is an important environmental issue and air pollution is not a local problem in a given area of the world. particles produced by either humans or the nature enter the atmosphere and return the earth’s surface at local, regional, or global scales after physico-chemical interactions. according to the reports by who, each year 2.4 million people lose their lives worl...