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The mode of binding of myosin subfragment-1 (S1) to actin is known to depend on their molar ratio: when actin is in excess, S1 binds to two actin monomers within the actin filament, and when S1 is in excess or is equimolar with actin, each S1 binds to one actin monomer. Since in vertebrate striated muscle actin is in molar excess over myosin, we expect that in fibers each myosin head binds to t...

(1) For all real numbers s1, s3, s4, l such that s1 ≤ s3 and s1 ≤ s4 and 0 ≤ l and l ≤ 1 holds s1 ≤ (1− l) · s3 + l · s4. (2) For all real numbers s1, s3, s4, l such that s3 ≤ s1 and s4 ≤ s1 and 0 ≤ l and l ≤ 1 holds (1− l) · s3 + l · s4 ≤ s1. (3) If n > 0, then mn mod m = 0. (4) If j > 0 and i mod j = 0, then i÷ j = j . (5) If n > 0, then in÷ i = in i . (6) If 0 < n and 1 < r, then 1 < rn. (7)...

I have 50 pairs of socks of which 30 are black and 35 are cotton. How many pairs of socks are black and cotton? If I call the set of black socks A and the set of cotton socks B, we are looking at |A ∩ B|. It is not hard to see that: |A ∪ B| = |A| + |B| − |A ∩ B| because every element that belongs to both A and B is counted twice by |A|+|B|, so we subtract the size of the intersection once. Ther...

Figure S1 shows the transitions between the substates. Table S1 shows the change in the number of agents at each substate after one system interaction, where a, b, c represent the fraction of agents at states A,B,AB and a0, ..., aw, b0, ..., bw′ represent the fraction of agents at substates A0, ..., Aw, B0, ..., Bw′ . The notation A(50%) denotes the case in which the speaker has 50% chance to s...

Vibrationally and rotationally resolved electronic spectra of diphenylmethane-d5 (DPM-d5) are reported in the isolated-molecule environment of a supersonic expansion. While small, the asymmetry induced by deuteration of one of the aromatic rings is sufficient to cause several important effects that change the principle mechanism of vibronic coupling between the close-lying S1 and S2 states, and...

Background: Determination of sex from the skeletal remains is of vital medicolegal importance for establishing the identity of an individual. Aims: To study the sexual differences in the first sacral vertebra (S1) in middle-aged adults through devising new parameters and indices. Materials and Methods: 100 mid-sagittal MR images of lumbosacral region (50 males "35±6 years" and 50 females "32±6 ...

The sequences complementary to the nascent RNA molecules isolated from transcription complexes of HeLa cell mtDNA have been mapped on the H and L strands of mtDNA by the S1 protection technique. The distribution of these sequences among different Hpa II restriction fragments was found to reflect the position of these fragments in the Hpa II map of mtDNA. Thus, the S1-resistant hybrids formed wi...