Isolated chicken erythrocyte nuclei have been incubated with dilute concentrations of the bifunctional cross-linking agent glutaraldehyde (0-20 mM) in order to stabilize histonehistone interactions within the native nucleus . The kinetics of the disappearance of acidsoluble histones, free amino groups, and of individual histones have been observed to be pseudo first-order . Apparent first-order...

this research was conducted to compare effects of electron beam (eb) and gamma ray (gr) treatments at doses of 25, 50 and 75 kgy on soybean meal (sbm) ruminal degradation kinetics of crude protein (cp) and amino acids (aa). the nylon bag and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (sds-page) techniques were used for this aim. ionizing radiations decreased washout and degradati...

All but a few studies concerned with the peripheral metabolism of labeled thyroxine 1 in man have ignored the early phase of equilibration of labeled with unlabeled hormone in the tissues (see review in reference 1). Lennon, Engbring, and Eng-strom (2) measured the rate of disappearance of radioactivity from the blood during the initial 50 minutes after intravenous injection of T4-131I in human...

where ai(t) = Pi + εQi cos2t, where Pi,Qi and ε are given constants, and where it is assumed that when ε=0 this system exhibits a pair of linearly independent solutions of period 2π . Since the driver cos2t has period π , we have the ingredients for a 2:1 subharmonic resonance which typically results in a tongue of instability involving unbounded solutions when ε >0. We present conditions on th...

We consider possible indications of Very-Short-BaseLine (VSBL) electron neutrino disappearance into sterile neutrinos in MiniBooNE neutrino data and Gallium radioactive source experiments. We discuss the compatibility of such a disappearance with reactor and MiniBooNE antineutrino data. We find a tension between neutrino and antineutrino data which could be due to: 1) statistical fluctuations; ...

Manipulation-free and autonomous recording of temperature states for extended periods time is increasing importance food spoilage battery safety assessment. An optical readout preferred low-tech visual inspection. Here, a concept time–temperature integrators based on colloidal crystals introduced. Two unique features in this class advanced materials are combined: 1) the film-formation kinetics ...

The effects of different concentrations of CdCl2 and AlCl3 on NH4+ and NO2? oxidation in an aqueous system were investigated. AlCl3 had no effect on NH4+ removal and its oxidation to NO2?, whereas NO2? disappearance was greatly enhanced by AlCl3. In contrast, CdCl2 delayed removal of NH4+ and its subsequent oxidation to NO2? and also decreased the rate of NO2? disappearance. When compared to th...