background & aim: black seed or black cumin (nigella sativa l.) belongs the family ranunculaceae. black seed is one of these species, which is naturally distributed in different parts of the country. it is extensively cultivated in various regions of iran.  experimental: the experiment was achieved using randomized complete block design with three replications in the research field of islam...

The dye of wastewater is a major environmental problem. Chemical and biological treatment of wastewaters containing dye is difficult due to the low level of adsorption and chemical stability of dyes. Activated carbon is usually used for adsorption of these materials, but because of high prices and restore problems, researchers trying to find available, low-cost materials with high adsorption. I...

tea might be considered as the most popular drink in iran as well as some other parts of theworld. its popularity to some extent depends on its flavor and some other constituents present in its leaves orextract. black tea samples from various agro climatic zones of northeast of iran were evaluated for the chemicalconstituents, polyphenols and metal analysis that determine the quality perception...

Wakatobi National Park has a tropical marine ecosystem with typically dynamic aquatic resources, and it also has a potentially massive number of groupers such as red (Plectropomus leopardus) and black groupers (Plectropomus areolatus). However, the sustainability of the grouper resources has not been managed effectively and environmentally friendly. This study aims to determin...

Black humor plays a crucial role in fulfilling Langston Hughes's anti-racist purposes as an integral notion in his poetry.  Accordingly, translation(s) of his poetry are to benefit from the same indexes on the basis of equivalent effect principle. On this account, 33 black-humor-rich poems of Hughes, translated by Ahmad Shamloo, Yaghma Golruee and Hassan Fayyad, were selected to be analyzed con...