Surface plasmons supported by metal nanoparticles are perturbed by coupling to a surface that is polarizable. Coupling results in enhancement of near fields and may increase the scattering efficiency of radiative modes. In this study, we investigate the Rayleigh and Raman scattering properties of gold nanoparticles functionalized with cyanine deposited on silicon and quartz wafers and on gold t...

PURPOSE To evaluate fundus autofluorescence (FAF) changes in patients with chronic essential hypertension (HTN). METHODS In this case-control study, 35 eyes of 35 patients with chronic essential HTN (lasting >5 years) and 31 eyes of 31 volunteers without history of HTN were included. FAF pictures were taken from right eyes of all cases with the Heidelberg retina angiography and then were asse...

S U M M A R Y We draw connections between seismic tomography, adjoint methods popular in climate and ocean dynamics, time-reversal imaging and finite-frequency ‘banana-doughnut’ kernels. We demonstrate that Fréchet derivatives for tomographic and (finite) source inversions may be obtained based upon just two numerical simulations for each earthquake: one calculation for the current model and a ...

Given a graph G = (V,E), k natural numbers n1, n2, ..., nk such that ∑k i=1 ni = |V |, we wish to find a partition V1, V2, ..., Vk of the vertex set V such that |Vi| = ni and Vi induces a connected subgraph of G for each i, 1 ≤ i ≤ k. Such a partition is called a k-partition of G. The problem of finding a k-partition of a graph G is NP-hard in general. It is known that every k-connected graph h...

Unified schemes of active galactic nuclei (AGN) require an obscuring dusty torus around the central engine. The compact sizes (only a few pc) determined in recent high-resolution observations require that the obscuring matter be clumpy and located inside the sphere of influence of the black hole. This location is in line with the scenario depicting the torus as the region of the clumpy wind com...

Purpose: Doughnut mastopexy lumpectomy (DML) is a breast resection technique in which a tissue segment is removed and the breast reshaped through a doughnut-shaped de-epithelialized periareolar area. In this study, we attempted to determine whether the DML technique could be useful for other types of breast surgery, in addition to breast cancer lumpectomy. Methods: This study examined a total o...