Models of benthic community dynamics for the extensively studied, shallow rocky ecosystems in eastern Canada emphasize kelp-urchin interactions. These models may bias the perception of factors and processes that structure communities, for they largely overlook the possible contribution of other seaweeds to ecosystem resilience. We examined the persistence of the annual, acidic (H2SO4), brown se...

Forty-one methanol extracts of 28 indigenous medicinal plant species were tested for their insecticidal bioactivity against cotton whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), adults and second nymphal instars under controlled conditions. This study is within a bioprospection context, in the form of utilizing local plant species as an alternative in sustainable agriculture dev...

Background & Aim: This research, order to study of extraction and investigation on the essential oil of Anthemis hyalina DC. were conducted.   Material & Methods: The volatile constituents of Anthemis hyalina DC. were isolated by hydro-distillation and analyzed by GC and GC/MS. In this study, samples were collected from Qazvin on June 2008.   Results & Discussion:...

background & aim: this research, order to study of extraction and investigation on the essential oil of anthemis hyalina dc. were conducted.   material & methods: the volatile constituents of anthemis hyalina dc. were isolated by hydro-distillation and analyzed by gc and gc/ms. in this study, samples were collected from qazvin on june 2008.   results & discussion: the oil yields...

The ordering dynamics of the Higgs field is studied, using techniques inspired by the study of phase ordering in condensed matter physics, as a first step to understanding the evolution of cosmic structure through the formation of topological defects in the early universe. The common feature of these different physical processes is scaling. A fully analytical approximate scheme − the linear-gau...

Andreas Kulawik, Raphael Engesser, Christian Ehlting, Andreas Raue, Ute Albrecht, Bettina Hahn , Wolf-Dieter Lehmann , Matthias Gaestel**, Ursula Klingmüller, Dieter Häussinger, Jens Timmer, and Johannes G. Bode From the Department of Gastroenterology, Hepatology, and Infectious Disease, University Hospital, Heinrich Heine University, Moorenstraße 5, 40225 Düsseldorf, Germany, the Institute of ...