An important question of ongoing interest for linear time-delay systems is to provide conditions on its parameters guaranteeing exponential stability solutions. Recent works have explored spectral techniques show that, some low-order delay-differential equations retarded type, values maximal multiplicity are dominant, and hence determine the asymptotic behavior system, a property known as multi...

Celiac disease (CED) is immune-mediated enteropathy caused by gluten intolerance affecting genetically predisposed individuals. CED may exert a number of various symptoms, including extra intestinal manifestations. Neurological symptoms can be the first sign of gluten intolerance. However, affected autonomic nervous system (ANS) activity may be linked to other symptoms. We evaluated the frequen...

The patient was a 62-years-old man that known case of hypertension for 15 years and had history cerebrovascular accident 10 days ago admitted to our hospital due chest pain dyspnea, after evaluation workups, coronary angiography revealed an absence left circumflex artery with right dominancy.

background: isolated right bundle branch block (rbbb) is a common finding in the general population. the atrioventricular node (avn) artery contributes to the blood supply of the right bundle branch. our hypothesis was that the anatomy of the avn artery and the pattern of dominancy differ between subjects with and without rbbb. methods: w e retrospectively studied the coronary angiography of 92...

A species-specific latitudinal distribution of soybean rhizobia has been reported; Bradyrhizobium japonicum and B. elkanii dominate in nodules northern southern areas, respectively. The aim this study was to elucidate whether temperature-dependent proliferation soil or infection is more reliable for determining the characteristic soybean-nodulating under local climate conditions. Three location...

The interest in using delayed designs is emphasized recent research on the stabilization of finite/infinite dimensional dynamical systems. A property called multiplicity-induced-dominancy (or MID for short) allows a reduced-complexity delayed- controller design showed its efficiency fast damping harmful oscillations. This contribution concerned with oil-well drilling systems torsional vibration...

The correlation between structural and optical properties of nanocrystalline ZnO synthesized by the citrate precursor method has been investigated. The Rietveld refinement of X-ray diffraction pattern confirms the P63mc space group and formation of single phase hexagonal wurtzite structure with presence of tensile strain at the lattice site. The presence of Raman active optical phonon mode at 4...