Allrgic reaction to natural rubber latex have increased during past 10 years especially among health worker and patients with high exposure to latex allergen. Latex allergy is associsted with clinical or serological cross reactivity to plant derived food allergcn especially tropical fruit for example avocado bannana chestnut kiwi papaya potato and peaches. In this study on health worker among 5...

Objective: Vitamin B12 deficiency is a common health issue in children. Though the sensivity of serum vitamin measurement for diagnosis low, combined methylmalonic acid, homocysteine and holotranscobalamin have been reported to be more specific biomarkers early accurate diagnosis. In this study, we aimed verify children by measuring homocysteine, determine accuracy them.
 
 Material M...

Surface-enhanced Raman scattering (SERS) spectrometry of the diuretic drug triamterene is discussed. The SERS-active substrate used is a silver foil etched with nitric acid. The influence of solvent and sample doping method on sensivity, intercept and shape of the calibration graphs is discussed.

A kinetic enzymological assay for methotrexate in serum is described; the results are available after 1.5 hours. The lower limit of sensivity is 50 nmol/1; the day-to-day variation coefficients compare favourably with other procedures (about 7% in the 200-600 nmol/1 range). The method uses purified dihydrofolic acid reductase from bovine liver. The problem of its instability in the assay is ci...

We determined serum transferrin receptor (sTfR), serum erythropoietin and hematologic and biochemical iron parameters in 251 healthy children. The levels of sTfR were significantly higher in children with storage iron deficiency but had a poor sensivity for recognizing iron deficiency without anemia. When ferritin values cannot accurately demonstrate the iron deficiency in children, the sTfR/fe...

We consider triples of matrices (E,A, B), representing singular linear time invariant systems in the form Eẋ(t) = Ax(t) + Bu(t), with E, A ∈ Mp×n(C) and B ∈ Mn×m(C), under proportional and derivative feedback. Using geometrical techniques we obtain miniversal deformations that permit us to study sensivity and structural stability of singular systems. Key-Words:Singular linear systems, proportio...