However, such models are difficult to maintain accurately and efficiently.
Specifically, it has been demonstrated that loss of histone H3K9, H3K27, and H4K20 trimethylation markedly impairs chromatin structure, diminishes the ability of the cells to regulate and maintain accurately the cell cycle, disrupts the balance between cell proliferation and differentiation, and severely reduces cell viability (Rea et al. 2000; Yang and Mizzen 2009).
I replaced it with a battery-operated device that kept time more accurately, and now I use an iPhone app that can be set to the finest gradation of tempo I need and maintains it accurately until I turn it off.
This format has inherent limitations with respect to maintaining and accurately recording unique identifiers that can link patients across the different clinics (antenatal, delivery, child), and also poses challenges when compiling aggregate data.
The gyroscope tends therefore to point in a constant direction in space, allowing the orientation of the vehicle to be accurately maintained.
Time stamps were accurately maintained with an accuracy better than 1 ms, using GPS time.
Temperature was varied below 100 °C because the boiling temperature of water, 100 °C, was not accurately maintained.
The content of cholesterol in brain must be accurately maintained in order to keep brain function well.
Accurately maintained gaps may not only provide desired mechanical response but also enable position-sensing and signal transduction between the substrates.
A highly-sensitive radial strain measurement device was designed and the K0 state can be accurately maintained by automatically adjusting the radial pressure when radial deformation changes more than ± 10 μm.
