Stability and collapse of localized solutions of the controlled three-dimensional Gross-Pitaevskii equation

On the basis of recent investigations, a newly developed analytical procedure is used for constructing a wide class of localized solutions of the controlled three-dimensional (3D) Gross-Pitaevskii equation (GPE) that governs the dynamics of Bose-Einstein condensates (BECs). The controlled 3D GPE is decomposed into a two-dimensional (2D) linear Schr\"{o}dinger equation and a one-dimensional (1D) nonlinear Schr\"{o}dinger equation, constrained by a variational condition for the controlling potential. Then, the above class of localized solutions are constructed as the product of the solutions of the transverse and longitudinal equations. On the basis of these exact 3D analytical solutions, a stability analysis is carried out, focusing our attention on the physical conditions for having collapsing or non-collapsing solutions.Comment: 21 pages, 14 figure

Identification of some Turkish tobacco varieties using gel electrophoresis techniques

WOS: 000074773300006The identification of six turkish tobacco cultivars was done according to peroxidase, malate dehyrogenase and estarase izosyme banding patterns using polyacrylamide gel electrophoresis (PAGE) method. Different extraction methods were applied to fresh leaves from the plants at different growing stages. The best result was obtained from he leaves at the flowering stage using the extraction method of Moore G. A., et al. PAGE was carried out with 400E Hoeffer vertical slab gel apparatus, according to Davis (1964). Extraction buffer consisted of 5 mM Na-2 EDTA 0.25 M NaCl, 0.05 M NaHSO3 and and 0.025 M beta-Mercaptoethanol in a 0.05 M Tris-HCl buffer pH 8.0. Electrot buffer: Tris 5 mM, Glisin 38.5 nM pH 8.3. Varieties differed with regard to their PER and EST izosyme banding patterns but not qualitative differences were detected in MDH bands

Association of calcium antagonist use with lower hemoglobin levels in hemodialysis patients

Aim. Objective of the present study was to investigate whether calcium antagonist use is associated with lower hemoglobin levels and/or higher erythropoiesis stimulating agent (ESA) requirement in hemodialysis patients