• New method to calculate transition time in the two-state model. Coupling potential shows dual nature, opaque and transparent. Explicit dependency of on second state’s Greens function. The coupling strength incident energy. We propose a simple scattering problem, where two constant potentials are coupled by delta function V 12 = 21 k 0 ? ( x ) . exact analytical expression for ? is derived. no...

The soil environment immediately around a root frequently has a larger number of microorganisms compared to soil just a few millimeters away from a root. This zone of influence is called the rhizosphere (Rovira, 1991), which is composed of many groups of organisms that are capable of affecting plant health beneficially and deleteriously (Schippers et al., 1987). Putting greens are artificially ...

Introduction Lutein is a carotenoid that can be found in dark green and yellow vegetables, fruits and egg yolk. Lutein, like other carotenoids, is an antioxidant. Sources Lutein and a close chemical zeaxanthin are xanthophyll carotenoids found in a wide variety of plant foods, especially dark green leafy vegetables, such as kale, spinach, turnip greens, and collards. Their concentrations in the...