Agrin is an extracellular matrix protein that mediates the nerve-induced clustering of nicotinic acetylcholine receptors on target muscle cells, and thus plays a key role in development of the neuromuscular synapse. Alternative exon usage within the rat agrin gene predicts numerous protein isoforms, which differ by the inclusion or exclusion of small inserts at three sites in the C-terminal hal...

MOHAMED ALI It is shown that the classification of polynomial algebras over the mod p Steenrod algebra is an essentially different problem from the classification of polynomial algebras truncated at height greater than p over the Steenrod algebra . 0 . Introduction . Let B = Zp[y2n y2n2, . . . , y2n,] be a polynomial algebra over A(p), the mod p Steenrod algebra, where yen ; has dimension 2ni a...

ABSTRACT One of the most distant galaxies GN-z11 was formed when Universe ≤400 Myr old, and it displays a burst-like star formation rate ∼25 M⊙ yr−1 with metallicity Z ∼ 0.2 ± 0.1 Z⊙. It resembles z = 2–3 (at ‘cosmic noon’) except for fact that measured reddening E(B − V) 0.01 indicates presence little or no dust. This marked absence dust hints towards violent dynamical events destroy evacuate ...

ABSTRACT The assembly of supermassive black holes poses a challenge primarily because observed quasars at high redshift, but additionally the current lack observations intermediate mass holes. One plausible scenario for creating is direct collapse triggered by merger two gas-rich galaxies. This allows creation stars with solar metallicity. We investigate behaviour metal enriched which due to ge...

Although the market for Canadian paintings is now of substantial magnitude, with several works having recently sold for well over a million dollars, it remains true that with very few exceptions, the works of Canadian painters are bought and sold only in Canada and held only by Canadian collectors. This market can thus be viewed as almost exclusively local, and it is therefore not clear that th...

Let fa,b(z, z̄) = z a1+b1 1 z̄ b1 1 + · · ·+z an+bn n z̄ bn n be a polar weighted homogeneous polynomial with aj > 0, bj ≥ 0, j = 1, . . . , n and let fa(z) = z1 1 + · · ·+z an n be the associated weighted homogeneous polynomial. Consider the corresponding link variety Ka,b = f −1 a,b (0) ∩ S2n−1 and Ka = f−1 a (0) ∩ S2n−1. Ruas-Seade-Verjovsky [4] proved that the Milnor fibrations of fa,b and fa ...

Habib and Rupp [3] provided analytical results for mutual coupling between multiple dipole antennas with angular or spatial separation. However, the method of deriving mutual coupling from mutual impedance involved several inconsistencies on which depend the final results of multiple antenna system capacity presented in their paper. First, the expression of mutual impedance matrix (12) in [3] i...

After describing the essential features of the book market, a welfare analysis of the fixed book price agreement is given. Allowance is made for the opportunity cost of reading. Theoretically, such an agreement pushes up book prices and depresses book sales. However, more titles will be published, particularly books with low price elasticity and those that take a long time to read. Potential ad...