Physics of Solar Prominences: II - Magnetic Structure and Dynamics

Observations and models of solar prominences are reviewed. We focus on non-eruptive prominences, and describe recent progress in four areas of prominence research: (1) magnetic structure deduced from observations and models, (2) the dynamics of prominence plasmas (formation and flows), (3) Magneto-hydrodynamic (MHD) waves in prominences and (4) the formation and large-scale patterns of the filament channels in which prominences are located. Finally, several outstanding issues in prominence research are discussed, along with observations and models required to resolve them.Comment: 75 pages, 31 pictures, review pape

Action to protect the independence and integrity of global health research

Storeng KT, Abimbola S, Balabanova D, et al. Action to protect the independence and integrity of global health research. BMJ GLOBAL HEALTH. 2019;4(3): e001746

In vitro callus induction and plant regeneration from immature zygotic embryos of black pepper (Piper nigrum L.)

Immature zygotic embryos of Piper nigrum L. were cultured in different concentrations and combination of auxins and cytokinins. Callus formation was highest (92.2%) when the explants were cultured on Murashige and Skoog (MS) medium supplemented with 2.0 mg/I IAA and 0.5 mg/I kinetin. CaIli were transferred to same basal medium containing 1.5 mg/I BAP and 0.5 mg/I NAA, where they developed maximum number of adventitious buds within three weeks of culture. Regenerated shoots were elongated on MS medium containing 1.5 mg/I BAP and 0.5 mg/I NAA and subsequently rooted in halfstrength MS medium with 1.5 mg/I IBA