After that accident, the railroad industry set up a strict inspection cycle for watches, with people like Mr. Falt cleaning and timing them.
We have shown that H. salinarum is not only highly polyploid, but also possesses a strict cell cycle control.
ad libitum and maintained in a specified pathogen-free state (SPF) under a strict light cycle (lights on at 06:00 h and off at 18 00 h).
Topoisomerase I acts to relax the supercoils that accumulate in DNA during DNA replication (Wang, 1985) and transcription and does not show any strict cell cycle regulation (O'Leary and Muggia, 1998; Bailly, 2000; Garcia-Carbonero and Supko, 2002).
In addition, future work will address whether loss of strict cell cycle control can lead to tumor induction in the liver, and whether changes in Myc expression levels influence tumor progression.
All rats were provided with standard irradiated chow diet (Purina Mills, Seoungnam, Korea) ad libitum and were maintained in a specific pathogen-free state under a strict light cycle (lights on at 06:00 h and off at 18 00 h) at a temperature of 22 ± 2°C and a relative humidity of 50 ± 10%.
One is regulation, which means injecting or subtracting power rapidly to keep the grid at a strict 60 cycles per second, the alternation in alternating current.
The alternating-current power system has to run at a strict 60 cycles per second, and the battery system can give and take power on a micro scale, changing directions from charge to discharge or vice versa within that 60th of a second, to keep the pace steady.
In Stephentown, N.Y., near Albany, a Massachusetts company, Beacon Power, is building a bank of 200 one-ton flywheels that will store energy from the grid on a moment-to-moment basis to keep the alternating current system at a strict 60 cycles.
In model cancer cells, expression of the survivin gene was shown to occur exclusively in the G2/M phase in a strict cell cycle-regulated manner (Li et al, 1998), thus potentially explaining a preferential expression of survivin in poorly differentiated and metastatic SCC, likely to exhibit high proliferative potential.
