Cadmium (Cd) is a highly toxic heavy metal for both plants and animals. The presence of Cd in agricultural soils is of great concern regarding its transfer in the soil-plant system. This study investigated the transfer of Cd (exogenous salts) from a wide range of Chinese soils to corn grain (Zhengdan 958). Through multiple stepwise regressions, prediction models were developed, with the combina...

BACKGROUND AND AIMS The aim of this study was to evaluate the level of sensory block, onset and duration of motor block, postoperative analgesia, and adverse effects of combination of clonidine and fentanyl given intrathecally with hyperbaric bupivacaine (HB). MATERIAL AND METHODS Three hundred and twenty eight patients were randomized into four groups. Group bupivacaine (group B) received 15...

Cherubini, A., C. Citrini, S.C. Reghizzi, and D. Mandrioli, QRT FIFO automata, breadth-first grammars and their relations, Theoretical Computer Science 85 (1991) 171-203. Some classes of queue automata (deterministic and nondeterministic), i.e. machines equipped with one or more FIFO tapes, and corresponding languages are considered. For quasi-real-time (QRT) deterministic machines, recognition...

Carbonates of the 1640 million years (Ma) old Barney Creek Formation (BCF), McArthur Basin, Australia, contain more than 22 different C40 carotenoid derivatives including lycopane, c-carotane, b-carotane, chlorobactane, isorenieratane, b-isorenieratane, renieratane, b-renierapurpurane, renierapurpurane and the monoaromatic carotenoid okenane. These biomarkers extend the geological record of car...

There has been increasing concern in recent years regarding lead (Pb) transfer in the soil-plant system. In this study the transfer of Pb (exogenous salts) was investigated from a wide range of Chinese soils to corn grain (Zhengdan 958). Prediction models were developed with combination of the Pb bioconcentration factor (BCF) of Zhengdan 958, and soil pH, organic matter (OM) content, and cation...

A new methodology for perceptual quality measure is presented. The new method defines the bark coherence function (BCF) as a new cognition module. False prediction errors are occasionally observed in previously developed perceptual measures when they are applied to the end-to-end speech quality measurement of communication systems. Those errors are mainly caused by the linear distortion of the ...