An exact dynamical parametrization of pulse-induced transition amplitudes in a Rosen–Zeneror Nikitin-type two-level system is constructed. The three dynamical parameters are closely related to the shape of the interaction pulse and are convenient to calculate. The Milne equation with a complex coefficient function is essential for these calculations. Its complex solution is non-oscillatory and ...

athy. Heart Rhythm 2014. doi:10.1016/j.hrthm.2014.01.014. 22. Kjaergaard J, Akkan D, Iversen KK, Kjoller E, Kober L, Torp-Pedersen C et al. Prognostic importance of pulmonary hypertension in patients with heart failure. Am J Cardiol 2007;99:1146–50. 23. Damy T, Goode KM, Kallvikbacka-Bennett A, Lewinter C, Hobkirk J, Nikitin NP et al. Determinants and prognostic value of pulmonary arterial pres...

Abstract We evaluated the stability of perennial legume and cereal grass species in artificial plant communities on permanent anti-erosion watercourses agroecosystems Belgorod region with active development linear soil erosion. In conditions steppe forest-steppe zones permanently grassed 2017-2019. varieties leguminous grasses: ‘Krasnoyaruzhskaya 1’ 2’ ( Medicago varia ), ‘Kazatsky’ Trifolium p...

Biological Nitrogen fixation is one of the two sources of nitrogen (N). Most nitrogen fixation in agriculture takes place in the Fabaceae family which can form symbiotic relationships with Rhizobium spp. if it is present in the soil. This study reexamines the effect that nitrogen (N) application has on nodulation number on the rooting zone of two small seeded legumes, alfalfa (Medicago sativa L...