نتایج جستجو برای: purple line
تعداد نتایج: 418706 فیلتر نتایج به سال:
Nanoscale electron transport through the purple membrane monolayer, a two-dimensional crystal lattice of the transmembrane protein bacteriorhodopsin, is studied by conductive atomic force microscopy. We demonstrate that the purple membrane exhibits nonresonant tunneling transport, with two characteristic tunneling regimes depending on the applied voltage (direct and Fowler-Nordheim). Our result...
A merica, we are told, is a nation divided. Maps of the electoral votes cast by the states in recent U.S. presidential elections reveal a striking pattern. The base of the Democratic Party is firmly rooted in the northeast and upper Midwest—a region stretching from Maine to Minnesota—plus the Pacific West, anchored by California. The Republicans are said to own an L-shaped region covering the S...
Background and Aim: In recent years study of medicinal plants in order to discover new pharmaceutical supplies against microbial strains has been considered very much. The main objective of this study was to evaluate the antioxidant and antimicrobial activities of shoot aqueous and ethanolic extracts of purple coneflower against some gram positive and gram negative bacteria. Methods:This experi...
Purple coneflower (Echinaceae purpurea (L.) Mnch) is one of the most important medicinal plants used by pharmaceutical industries in industrialized countries. The active substances of this plant are antiviral and are used as human immunostimulant. The plant of purple coneflower is not included in the Iranian flora. Therefore, the main aim of this study was to evaluate the adaptability of the pl...
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