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Provitamin A–biofortified maize increases serum β-carotene, but not retinol, in marginally nourished children: a cluster-randomized trial in rural Zambia
beta-carotene biofortification deficiency vitamin A serum retinol provitamin A Zambia
2018/12/3
Background: Vitamin A deficiency remains a nutritional concern in sub-Saharan Africa. Conventionally bred maize hybrids with high provitamin A carotenoid concentrations may have the potential to impro...
Marginally low mass ratio close binary system V1191 Cyg
Marginally ratio close binary V1191 Cyg
2011/9/27
In this study, we present photometric and spectroscopic variations of the extremely small mass ratio ($q\simeq 0.1$) late-type contact binary system \astrobj{V1191 Cyg}. The parameters for the hot and...
Entrainment of marginally stable excitation waves by spatially extended sub-threshold periodic forcing
stable excitation waves sub-threshold periodic forcing amplitudes frequencies sub-threshold stimuli
2011/7/5
We analyze the e ects of spatially extended periodic forcing on the dynamics of one-dimensional
excitation waves. Entrainment of unstable primary waves has been studied numerically for di erent
ampl...
Forming Planetesimals by Gravitational Instability: II. How Dust Settles to its Marginally Stable State
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/23
Dust at the midplane of a circumstellar disk can become gravitationally unstable and fragment into planetesimals if the local dust-to-gas density ratio mu is sufficiently high. We simulate how dust se...
期刊信息
篇名
Determination of marginally stable zone of gas-solid magnetically fluidized beds
语种
英文
撰写或编译
作者
Gui Keting,Zhang Hui,Shi Mingheng
第一作者单位
刊物名称
Journal of Hydrodynamics
页面
14(4), 2002.12
出版日期
20...