Background: Fine needle aspiration (FNA) has led to a decrease in unnecessary surgeries for thyroid nodules. This study was designed to compare diagnostic value of FNA and frozen section methods in the follicular lesions. Methods: This is a cross-sectional study based on the medical records of 42 patients who were referred to surgery clinic of Rasool-e-Akram hospital in Tehran with complain...

A frozen Rydberg gas is a sample of atoms with highly excited electronic states and very low temperature. In our experiments, Rb atoms are cooled and trapped in a magneto-optical trap (MOT) (fig.1&2), and excited to the Rydberg states (the principle quantum number n ~30) by pulsed dye lasers (fig.3). In such a system, the density of Rydberg atoms Nd is typically ~10atoms/cm, and the temperature...

The frozen local hole approximation (FLHA) is an adiabatic approximation which is aimed to simplify the correlation calculations of valence and conduction bands of solids and polymers or, more generally, of the ionization potentials and electron affinities of any large system. Within this approximation correlated local hole states (CLHSs) are explicitly generated by correlating local Hartree-Fo...

Between 1850 and 1914, Norway was a major supplier of natural ice to Britain western Europe. The blocks were kept across time distance. cold energy transferred as it melted in cabinets boxes. industry had composite range end consumers restaurants, ocean liners, food industries pelagic fish trawlers. At the same time, also production industry, based on methods for resource extraction. This artic...