Secondary quasiperiodicity (period-doubled oscillations modulated by an incommensurate frequency), or ”Q2,” is the temporal manifestation of quasiperiodic motion on period-doubled tori. The existence of this regime in a chemical reaction was first predicted (T.V. Bronnikova, W.M. Schaffer and L.F. Olsen, J. Chem. Phys., 1996, 105, 10849) in the course of numerical explorations of a detailed mod...

One of the most severe mass extinctions of the Phanerozoic, the Triassic-Jurassic event is greater or equal in magnitude to that at the more famous K-T boundary (Benton, 1994) (Fig. 1). Such severity, at least for marine families is also supported by Foote’s (2003) statistical revaluations, although there remain dissenters (e.g. Hallam, 2002; Lucas et al., 2002). The cause of this mass-extincti...

15. geson, R. E.? eds.). pp. 195-221, Academic Press, Orlando Vaughan, I,., Mendler, M., Huber, S., Bruckner, I>.. Winterhalter, K. H., Irwin, M. H. & Mayne, R. (1988) J. Cell Biol. 106,991-997 Nishimura, I., Muragaki, Y. & Olsen, B. R. (1989) J. Hiol. Chem. 264.20033-20041 Carney, S. I,. & Muir, H. (1988) Physiol. Rev. 68, 858-910 Ken, Z. X., Brewton, R. G. & Mayne, R. (1991) J. Struct. Biol. ...

The following is a reprint from Chapter 8 in Chemotherapy and Biotherapy Guidelines and Recommendations for Practice (Fourth Edition) by Martha Polovich, PhD, RN, AOCN®, MiKaela Olsen, MS, RN, AOCNS®, and Kristine B. LeFebvre, MSN, RN, AOCN® (Eds.).

Nitrogen (N) and phosphorus (P) are primary indicators of soil nutrients in agriculture. Accurate management these is essential for ensuring food security. High-resolution, multi-spectral remote sensing images can provide crucial information mapping at the field scale. This study compares capabilities ZH-1 Sentinel-2 satellite data, along with different spectral indices, (total N Olsen-P) using...

in a greenhouse experiment, changes in inorganic phosphorus fractions as well as their availability in the rhizosphere of rice (oryza sativa c.v. khazar) crop, following an application of 40 mg p (as monocalcium phosphate per kg of soil) were investigated in paddy soils north of iran. the study was performed as a 14×2 factorial in a completely randomized design of two factors namely: soil at 14...