Each completion of the ratio on the inactive lever resulted in illumination of the white stimulus lights for two sec but had no other programmed consequences.
During each 60-min session, each completion of the ratio on the active lever resulted in illumination of the amber stimulus lights for two sec paired with an i.v. injection of 10 µg/kg of nicotine, followed by a 60-sec TO, during which the experimental chamber was dark and lever-press responses had no programmed consequences.
The data obtained in the present study for the two Sec-containing peptides are ~10-fold higher than that for the corresponding free amino acid (Sec; see Table 1), suggesting that the environment of the Sec residue modulates its reactivity.
Tumor tissue (30 mg) was homogenized in 800 μL lysisbuffer (Roche) using MagNa Lyser Green beads/MagNa Lyser instrument (Roche) for two 10 sec pulses at 6.500 rpm, and stored at -80°C for a maximum of 2 months.
Lungs from B6, D2, and BXD strains infected with 10 EID50 were obtained 2 days after infection and immediately homogenized in 2.0 ml tubes containing 1.0 ml PBS and a stainless steel ball for two 30-sec periods at 30 Hz (TissueLyzer, Qiagen).
NPD measurements in all positions were achieved when the measurement had stabilized for more than five sec.
On this basis the eligible values of roughness average Ra for seven representative sec- tions of ejectors were specified.
Chromatin was then sonicated to an average length of 0.5 Kb for three 30 sec.
Cells were incubated on ice for 30 minutes, sonicated for three 10 sec rounds, and lysate was centrifuged at 7,000 × g for 30 minutes.
The lysates were centrifuged at 12,000 g for 10 min at 4°C and the supernatants were sonicated at 30% output for four 10 sec cycles with intermittent cooling on ice.
Briefly, genomic DNA purified from rat liver was sheared to 200 1,000 bp at 30% power for ten 15-sec pulses using VCX130 (Sonics, Newtown, CT, USA) and then incubated with anti 5-methylcytosine anti 5-methylcytosineight.
