Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies. This paper presents a dynamic principal-agent model of aquatic species invasions in which a manager, concerned about the spread of invasive species across lakes by boaters, sets interseasonal management controls on a lake-by-lake basis, and ...

The aerial parts of A. chrysocoma and A. coarctata afforded 22 and 9 sesquiterpene lactones, respectively. All the compounds described are new for the studied species. The lactones 5, 6 and 12 are new for the genus Achillea.

Skin wound healing especially when it occurs on the face or somewhere important for cosmetic reasons, is very significant physiological procedure. It is quite obvious that promoting this healing is important too. In this study we tried to compare the effects of Achillea millefolium and Zinc oxide on secondary intentioned open-wound healing in rats. Zinc oxide is being used worldwide as an absor...

Oleander is very frequently planted as an ornamental shrub in urban areas of the Mediterranean. Its most common pest aphid Aphis nerii, and heavy infestations produce aesthetic damage disturbances to citizens, they are sprayed with insecticides order reduce population density. One alternative method conservation biological control which enhanced by provisioning food, refuges, reproduction sites...

Achillea millefolium belong to the asteraceae family and from genus achillea. In this study essential oils were extracted from all aerial parts via hydro distillation (HD) method by clevenger set . By using of gas chromatography/mass spectrometry ( GC-MS) technique the chemicals component essential oil were identified. About 41 components with were identified which encompassed 97.66 percent of ...

The relationship between respiratory alternative pathway and carbohydrate status was studied in mature leaves of three native representatives of forest and meadow communities of north-east Russia – Ajuga reptans L., Achillea millefolium L. and Calla palustris L. All experiments were carried out on plants growing in natural habitats. The activity of the alternative respiratory pathway was studie...