(CEE, 57/46) {§2.2} [Euclid's Elements] contains all the dialectical methods: the method of division for finding kinds, definitions for making statements of essential properties, demonstrations for proceeding from premises to conclusions, and analysis for passing in the reverse direction from conclusions to principles.
The presence of molecular oxygen was found to be essential for photooxidation to proceed.
First, enclosure of nonnative protein in the GroEL GroES complex is essential for folding to proceed unimpaired by aggregation.
NOX inhibition had no effect on myc expression, but reduced the expression of both klf4 and dio3 (Fig. 2b). Figure 2: Sustained ROS production is essential for regeneration to proceed.
The peak of ROS production and the second wave of cell death, which is specific and essential for regeneration to proceed, both occur around 15 hpa, which correlates with proliferation in the stump epidermis compartment and blastemal cell recruitment10,11.
Although not absolutely required for their growth and maturation, BCL-XL is essential for megakaryocytes to proceed safely through pro-platelet formation and platelet shedding.
Kinesin family member 20A (KIF20accumulatestes in mitotic cells where it localizes to the midzone of the spindle during anaphase, and to the cleavage furrow and midbody during telophase, essential for cytokinesis to proceed [ 59].
Our data are consistent only with a model whereby dual activation of both ERK and PI3K is essential for proliferation to proceed, whereas anti-apoptosis does not require ERK activation.
Approaching the problem from the opposite perspective, it could be useful to screen out essential genes before proceeding with the search for HGT.
But Alistair Darling, the Chancellor, insisted: "It is essential we proceed quickly.
