The aim of the present study was to compare conventional radial keratotomy (RK) with minimally invasive RK (mini-RK) in terms of achieved incisional depth as well as the histopathologic changes in the rabbit corneal structures. Four conventional RK incisions were performed on the right eye and four mini-RK incisions were performed on the left eye of 12 Island rabbits using a centripetal cutting...

We construct a minimal rK-degree, continuum many, in fact. We also show that every minimal sequence, that is, a sequence with minimal rK-degree, must have very low descriptional complexity, that every minimal sequence is rK-reducible to a random sequence, and that there is a random sequence with no minimal sequence rK-reducible to it.

We consider an enhancement in the violation of lepton flavour universality in light meson decays arising from modified Wlν couplings in the standard model minimally extended by sterile neutrinos. Due to the presence of additional mixings between the active neutrinos and the new sterile states, the deviation from unitarity of the leptonic mixing matrix intervening in charged currents might lead ...

Previously, it was shown that 5/6 renal mass reduction by surgical excision (RK-NX) results in a marked reduction of glomerulosclerosis (GS) at 6 wk compared with the conventional 5/6 renal ablation by infarction (RK-I) model. To determine the pathogenetic correlates of the striking differences in GS, radiotelemetrically measured BP; single nephron function; glomerular volume; the temporal expr...

We define a rank function rk, mapping modal μ-formulae on ordinals below ω such that rk(μx.φ) > rk(φ(x)) for n ∈ N, with φ(x) ≡ x and φ(x) ≡ φ[x/φ(x)], and rk(φ) > rk(ψ) for all proper subformulae ψ of φ. The corresponding induction on formulae is thus justified by transfinite induction on ω. We then show that ω is the least such ordinal. Further, we give an algorithm to compute rk(φ) by primit...

Phosphorylation is thought to be an essential first step in the prompt deactivation of photoexcited rhodopsin. In vitro, the phosphorylation can be catalyzed either by rhodopsin kinase (RK) or by protein kinase C (PKC). To investigate the specific role of RK, we inactivated both alleles of the RK gene in mice. This eliminated the light-dependent phosphorylation of rhodopsin and caused the singl...

A k×n Latin rectangle on the symbols {1, 2, . . . , n} is called reduced if the first row is (1, 2, . . . , n) and the first column is (1, 2, . . . , k) . Let Rk,n be the number of reduced k × n Latin rectangles and m = bn/2c. We prove several results giving divisors of Rk,n. For example, (k − 1)! divides Rk,n when k ≤ m and m! divides Rk,n when m < k ≤ n. We establish a recurrence which determ...

(b) Let assume first that B be onto. Then apply the first question to A and BC ; we obtain rkA+rk(BC) ≤ m+rk(ABC). This is the desired inequality, since rkB = m and rk(AB) = dimR(AB) = dimR(A) = rkA. We now consider the general case. The previous analysis is obviously valid for homomorphisms. We apply it to the triplet (A′, B, C), where A′ is the restriction of A to R(B). We obtain rk(A′B) + rk...