The objective of the present study is to investigate the bioefficacy of the leaves extracts of Hyptis suaveolens (L.) Poit against the fish pathogens isolated from diseased Tilapia (Oreochromis niloticus). The petroleum ether, ethanol, ethyl acetate, chloroform and aqueous extracts of H. suaveolens were tested against viz., Aeromonas formicans, Aeromonas hydrophila, Bacillus subtilis, Escherich...

Hyptis suaveolens (L.) Poit. belongs to the Lamiaceae family and is widely used in folk medicine in various countries. Th e essential oils from H. suaveolens have been extensively investigated and are mainly composed of monoterpenes and sesquiterpenes, although signifi cant diterpene content has been reported in recent studies. Th e survey of the literature concerning H. suaveolens essential oi...

This paper aims to survey the theoretical and empirical literature on increasing wage and employment differentials in favour of high skill workers and against low skill workers. Much literature stresses the role of demand shifts against low skill workers, caused by skill biased technical change (SBTC) and by sector biased international trade (SBIT). Moreover, demand shifts with characteristics ...

As plantas medicinais brasileiras produzem diversas substâncias com propriedades terapêuticas; dentre estas encontram-se os óleos essenciais, de importância para as indústrias farmacêutica, perfumes e alimentícia por suas propriedades. Uma das atividades interesse é a ação antimicrobiana, principalmente devido à ausência descobertas novas classes medicamentos antibióticos nos últimos anos. No c...