PURPOSE To study the mechanisms and sites of action of the carbonic anhydrase inhibitor, acetazolamide (AZM), on the rod- and cone-mediated electroretinogram (ERG) of the dark-adapted rat. METHODS After a within-subjects design, ERG responses to brief, full-field flashes were recorded from adult (60 to 90 days old) albino rats, with and without AZM (5 mg/100 g, intraperitoneally). Flickering ...

To leading order in α s , the leading and non-leading 1/m b corrections to the excited B * * meson coupling g B * * Bπ is calculated in the framework of QCD spectral moment sum rules in the full theory. Our prediction is in good agreement with the light − cone QCD sum rule result.

A conic linear system is a system of the form (FPd ) Ax = b x ∈ CX , where A : X −→ Y is a linear operator between nand m-dimensional linear spaces X and Y , b ∈ Y , and CX ⊂ X is a closed convex cone. The data for the system is d = (A, b). This system is “well-posed” to the extent that (small) changes in the data d = (A, b) do not alter the status of the system (the system remains feasible or ...

This study investigates the possibility of an endogenous circadian rhythm in retinal cone function in humans. A full-field cone electroretinogram (ERG) was performed every 2 h for 24 h under continuous rod-saturating ambient white light (53 ± 30 lux; pupils dilated) in nine healthy subjects. Distinct circadian variations were superimposed upon a gradual decrease in cone responsiveness to light,...

The focal cone electroretinogram (ERG) in monkey retina has been examined with a 3 deg pulse of laser light (544 and 633 nm) centered on a 25 deg steady white rod saturating field. The stimuli were viewed simultaneously through a slit lamp and corneal contact lens. Cone ERGs were studied at different eccentricities from the fovea and compared with full-field corneal and intraretinal ERGs. The c...

ICEBs1 is an integrative and conjugative element found in the chromosome of Bacillus subtilis. ICEBs1 encodes functions needed for its excision and transfer to recipient cells. We found that the ICEBs1 gene conE (formerly yddE) is required for conjugation and that conjugative transfer of ICEBs1 requires a conserved ATPase motif of ConE. ConE belongs to the HerA/FtsK superfamily of ATPases, whic...