Relative abundance of Delta(5)-sterols in plasma membrane lipids of root-tip cells correlates with aluminum tolerance of rice.

We investigated variations in aluminum (Al) tolerance among rice plants, using ancestor cultivars from the family line of the Al-tolerant and widely cultivated Japonica cultivar, Sasanishiki. The cultivar Rikuu-20 was Al sensitive, whereas a closely related cultivar that is a descendant of Rikuu-20, Rikuu-132, was Al tolerant. These two cultivars were compared to determine mechanisms underlying variations in Al tolerance.

An information theory approach to minimise correlated systematic uncertainty in modelling resonance parameters.

Covariance matrix elements depict the statistical and systematic uncertainties in reactor parameter measurements. All the efforts have so far been devoted only to minimise the statistical uncertainty by repeated measurements but the dominant systematic uncertainty has either been neglected or randomized. In recent years efforts has been devoted to simulate the resonance parameter uncertainty information through covariance matrices in code SAMMY.

Unfolding of polonium distribution in depth of irradiated lead-bismuth eutectic from alpha-particle pulse-height distribution.

The alpha-particle pulse-height distribution measured from irradiated LBE is determined from the polonium distribution in it. The unfolding of vertical polonium distribution in irradiated LBE ingot is performed with the unfolding code UFOQ. The code uses quadratic programming to consider the constraint that polonium distribution does not have negative values.