Subclavian artery aneurysms are uncommon. The most common causes of these aneurysms are atherosclerosis and traumatic pseudoaneurysm. We report two cases of rare congenial left subclavian artery aneurysms. Diagnosis with aortography and...

We model unemployment duration, reservation and expected wages simultaneously for individuals not in work, where wage expectations are identified via an exogenous policy shock. The policy shock increased expected wages, which were found...

A new pure optical system that makes it possible to transmit a two-dimensional image and its color is presented. This system uses only one high order diffraction grating and a set of silica multimode fibers. A good color (seven componen...

A new cytokinin was isolated from mature leaves of poplar. Its structure was determined by UV and MS and confirmed by synthesis as 6-(o-hydroxybenzylamino)-9-β-d-ribofuranosylpurine. This cytokinin has medium activity in the soybean ca...

The results of scale model tests for predicting variables in the strengths of fibre reinforced plastic (FRP) laminates are presented. Classical laws of similitude are applied to fabricate and test replica model specimens. These are used...

In this paper, we investigate the existence of multiple positive periodic solutions to a class of functional difference equations. We answer the open problems proposed by Y. Raffoul in [Electron. J. Differential Equations 55 (2002) 1–...

Loss of radioactivity to the aqueous phase of conventional extraction procedures has been observed in studies of glyceride synthesis with labeled fatty acids. A method is presented which does not involve washing procedures and by which ...

The preparation for DNA replication initiation is tightly linked to cell-cycle progression, ensuring that replication occurs only once per cycle. The time is ripe for a molecular dissection of the links between the two processes. We us...

The problem of determining K3(n,1), the minimum size of a ternary code of length n and covering radius 1, is called the football pool problem. By construction, it is here Nike Free Tr Fit 3 shown that K3(9,1)⩽1269. A code whose full a...

Using simulation techniques, the effect of optical errors on the flux distribution around absorber tubes of Parabolic Trough Concentrators (PTCs) were investigated. It is found that the total optical error has profound effect on the int...

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