The ribosomal stalk in bacteria is composed of four or six copies of L12 proteins arranged in dimers that bind to the adjacent sites on protein L10, spanning 10 amino acids each from the L10 C-terminus. To study why multiple L12 dimers are required on the ribosome, we created a chromosomally engineered Escherichia coli strain, JE105, in which the peripheral L12 dimer binding site was deleted. T...

ANDREA BENEDETTI, PhD†‡¶, MARK S. GOLDBERG, PhD†‡§, and MICHAL ABRAHAMOWICZ, PhD†║ † McGill University, Department of Epidemiology, Biostatistics and Occupational Health, Montreal, Canada ‡ McGill University, Department of Medicine, Montreal, Canada ¶ Montreal Chest Institute, Respiratory Epidemiology and Clinical Research Unit, Montreal, Canada §Royal Victoria Hospital, Division of Clinical Ep...

In this paper, a spline finite element approach is manipulated for the numerical solution of an extended system of second-order boundaryvalue problems. The efficiency of the proposed method is examined by comparing the results with the existing exact closed form solution. The numerical results demonstrate that the method is efficient and quite accurate when contrasted with other methods and req...

We model the behavior of Nasdaq momentum traders, also known as SOES bandits. We show, all things being equal, that the profitability of SOES bandits decreases in the bid-ask spread, but increases in the effective tick size. The patterns we observe in the data provide support for the model. We then discuss the plausibility of odd-eighth tick avoidance by market makers as a defense against SOES ...

We have calculated the electronic structure of the tetragonal L10 ordered FeCu by solving self-consistently a tight-binding Hamiltonian for s, p and d electrons. We have found by total energy calculation that this structure is ferromagnetic. In addition, we have determined that the equilibrium ratio between the interlayer and the intralayer lattice parameters is 0.947. PACS numbers: 75.50.Rr, 7...