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deoxynivalenol contamination was determined in corn produced in golestan and ardabil (moqan) provinces, iran, in 2004-2005. samples were collected from different stages of production, including before harvest, at harvest, post harvest as well as after drying. ground sub samples were extracted with water; each extracted sample was cleaned up through an immunoaffinity column. deoxynivalenol was e...

The perceptual quality of VoIP conversations depends tightly on the pattern of packet losses, i.e., the distribution and duration of packet loss runs. The wider (resp. smaller) the inter-loss gap (resp. loss gap) duration, the lower is the quality degradation. Moreover, a set of speech sequences impaired using an identical packet loss pattern results in a different degree of perceptual quality ...

Seventy-two Simmental-cross growing steers (219 +/- 2.4 kg initial BW) were used in a randomized complete block design to evaluate the effects of feeding a return chewing gum/packaging material mixture (G/P) on feedlot performance, carcass characteristics, sensory attributes of meat, and mineral content of beef liver and muscle. Animals were allotted by weight to 12 pens (six/pen). Each pen was...

The energetics of the Menshutkin-like reaction between four mesylate derivatives and ammonia have been computed using B3LYP functional with the 6-31+G** basis set. Additionally, MPW1K/6-31+G** level calculations were carried out to estimate activation barrier heights in the gas phase. Solvent effect corrections were computed using PCM/B3LYP/6-31+G** level. The conversion of the reactant complex...

E2F transcription factors control diverse biological processes through regulation of target gene expression. However, the mechanism by which this regulation is established, and the relative contribution of each E2F member are still poorly defined. We have investigated the role of E2F2 in regulating cellular proliferation. We show that E2F2 is required for the normal G(0)/G(1) phase because targ...

Motivated by understanding the phase structure of d > 1 strings we investigate the c = 1 matrix model with g(trM(t)) interaction which is the simplest approximation of the model expected to describe the critical phenomena of the large-N reduced model of odd-dimensional matrix field theory. We find three distinct phases: (i) an ordinary c = 1 gravity phase, (ii) a branched polymer phase and (iii...

g-frames in hilbert spaces are a redundant set of operators which yield a repre-sentation for each vector in the space. in this paper we investigate the connection betweeng-frames, g-orthonormal bases and g-riesz bases. we show that a family of bounded opera-tors is a g-bessel sequences if and only if the gram matrix associated to its denes a boundedoperator.

objective(s):despite of wide range applications of polymeric nanoparticles in protein delivery, there are some problems for the field of protein entrapment, initial burst and controlled release profile.   materials and methods: in this study, we investigated the influence of some changes in plga nanoparticles formulation to improve the initial and controlled release profile. selected parameters ...