This study was carried out at the meadows and pastures in Çolpan village of Van province 2020. In study, matter yield, botanical composition, plant covered area, rate decreaser/increaser/invader species were determined. The Loop method used to determine composition. grassland area identified 69 belonging 17 families. meadow 20 6 amount Poaceae, Fabaceae other families found determined as 18.66...

The genus Hypericum is one of the most important medicinal plants that contain 17 species in Iran, three of them are endemics. This paper reports the essential oil composition of eight Hypericum species from Iran. The essential oil analysis of a number of the studied plants has already been reported but their report from Iran may be valuable for scientists.  Samples collected from different pla...

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The uniform box product was introduced by Scott Williams in 2001, but very little was done with it until the recent (2010 and 2012) [B1], [H1] dissertations of Jocelyn Bell and Jeffrey Hankins. Their results had to do with two questions that Williams posed a decade earlier: whether the uniform box product of compact spaces is normal, and whether it is paracompact. Hankins answered the latter qu...