Review of the Berosus Leach of Venezuela (Coleoptera, Hydrophilidae, Berosini) with description of fourteen new species

The species of the water scavenger beetle genus Berosus Leach occurring in Venezuela are reviewed.Thirty-six species are recorded, including fifteen new species, fourteen of which are described Backrests here as new: B.aragua sp.n., B.asymmetricus sp.n., B.capanaparo sp.n., B.castaneus sp.n., B.corozo sp.n., B.ebeninus sp.n., B.garciai sp.n., B.hum

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A Study on the Effect of Natural Regenerated and Synthetic Non-woven Fabric Properties on Acoustic Applications

In this world, unnoticed sound that disturbs frequently is called as noise.It is one of the main reasons for reducing the environment quality of human being.This effect can be minimized by using acoustic absorbent material in different areas where the sound absorption is required.In textile, acoustic property of non-woven is better than the woven f

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