The taxonomical relationship between Salvia pratensis and S. bertolonii has been unclear for a long time. Salvia bertolonii has alternatively been considered a synonym, a subspecies, a problematic subspecies and a form of Salvia pratensis. However, both these two species are sometimes used in traditional medicine instead of sage (Salvia officinalis) or as an adulteration for the same drug. In order to confirm the status of S. bertolonii, together with the potential identification characteristics for differentiation from sage, both taxa were analyzed through the analysis of their essential oils, together with the micromorphological characteristics of the leaf surface and the anatomy and morphology of the leaves. The obtained results show that there are clear differences in the quantity of essential oil (0.073% for S. pratensis and 0.0016% for S. berolonii). The major compound in the essential oil of S. pratensis was E-caryophyllene (26.4%) while in S. berolonii essential oil caryophyllene oxide was the major component (35.1%). The micromorphological differences are also pronounced in the leaf indumentum (density and distribution of certain types of non-glandular and glandular trichomes). Clear distinction between the investigated Salvia species is also observed in the leaf anatomy (in S. pratensis leaves are thinner, palisade tissue is made of 1-2 layers of cells, and leaves of S. bertolonii are characterized by 2-3 layers of palisade tissue cells, and consequently thicker).

Dugogodisnje koristenja antibiotika u intenzivnoj peradarskoj proizvodnji, bilo kao stimulatora rasta ili u prevenciji oboljenja, rezultiralo je odlaganjem rezidua u jajima i mesu peradi, te pojavi bakterija specifi no rezistentnih na antibiotike. Iz navedenih razloga sirom svijetu je uo ljiv trend zabrane upotrebe pojedinih antibiotika u nutritivne ili profilakti ke svrhe, uz istovremeno traženje alternativnih i neskodljivih sredstava za zamjenu.

Introduction: Nitric oxide (NO) plays an important role in a wide range of physiologic and pathophysiological processes. A major mediator of endothelial function, NO regulates vasodilatory and antithrombotic actions in the vasculature and plays a role in reproductive functions, bronchodilation, bone formation, memory, insulin sensitivity, and gastrointestinal relaxation. Impaired NO bioactivity is strongly associated with endothelial dysfunction. NO, an L-arginine derivative, also exerts a variety of renal and extrarenal physiological and pathophysiological effects. It seems that NO synthetic pathway could have a key role in mediating the complex hemodynamic and hemostatic disorders associated to the progression of renal disease. It remains unclear whether endogenous NO production is increased or decreased in patients with chronic renal failure. The objective of this study was to present the effect of different dialysis treatment on NO serum concentration in patients with chronic renal failure. Patients and Methods: To evaluate endogenous NO production in these patients we studied plasma NO2 and NO3 levels (determined with the Griess method) in patients who underwent regular continuous ambulatory peritoneal dialysis or repeated haemodialysis and in healthy subjects. The study included 51 patients suffering from chronic renal failure and 30 healthy subjects. Results: Our results show that patients with chronic renal failure had a significantly higher NO serum concentration than controls. These values did not differ between patients on haemodialysis and those on continuous ambulatory peritoneal dialysis. NO serum concentration did not differ between female and male independently of the patient’s treatment. Discussion and Conclusion: From obtained results we can concluded that uremia is associated with excessive systemic NO release independently of the patient’s treatment. Alter (increase) NO synthesis may help to explain some pathological changes seen in uraemia such as bleeding tendency, a well-known complication of uremia and hemodialysis hypotension.

The paper presents two novel applications of Thomson Multitaper Analysis. It is shown how a wideband simulator of a double mobile MIMO channel could be developed based on geometrical channel model. It is also shown how modification of Discrete Prolate Spheroidal Sequences could be used to better estimation of sparse channels. A number of other potential applications is also mentioned.