Fuzzy-logic based control of an induction motor is discussed. The controller uses the indirect vector control method to decouple the motor current components. The fuzzy controller uses a simple rule ...set obtained by a modification of the parameters of a linear controller. Results obtained via simulation are reported, showing the excellent behavior of the fuzzy controller.< >
Serum concentrations of immunoglobulin E (IgE) were measured in 31 children with bronchial asthma and in 55 healthy children. Among the asthmatic children, 70% had elevated IgE levels, 83% had a low ...titre of histamine-latex agglutination and 80% had blood eosinophilia over 3%. All asthmatic children showed hypersensitivity to one or more allergens; the highest incidence of hypersensitivity was to house dust (38% of asthmatic children), followed by pollens (25%) and vegetable fibers (19%). No relation was observed between serum IgE concentration and the intensity of cutaneous reaction or the number of sensitizing allergens. No significant difference was observed in serum IgE concentration in asthmatic children submitted hyposensitization therapy compared with those who had not received such treatment. It is concluded that IgE determination may be valuable for differential diagnosis between allergic and non allergic asthma and that IgE measurement should be considered as a complementary test in the investigation of allergy.
The authors studied urine excretion of cyclic-AMP and cyclic-GMP in normal and allergic children before and after hyposensitization to house dust. The cyclic-AMP excretion was found to b diminished ...in the asthmatic group before the treatment. The hyposensitization did not modify these low levels. No significant variation of cyclic-GMP excretion was found among the normal, ante or post-hyposensitization asthmatic groups.
In this report, the levels of some blood parameters have been studied in "Pastor catalan" (Gos d'atura) canine breed during a period of time between 3 and 12 months of age. The results show that red ...blood cells (RBC), cell packed volume value (PCV) and hemoglobine (Hb) depend on the age of the animals, while the rest of the blood values not only do they lack of that dependence but they also haven't got any important variation during that time. In relation to the blood chemical parameters, the alkaline phosphatase and inorganic phosphorous are the ones that are significantly related with age. In general, all these results agree with those of other authors in relation to the breeds more used in research
The new selective access analysis system BM/Hitachi 917 was evaluated in an international multicentre study, mainly according to the ECCLS protocol for the evaluation of analysers in clinical ...chemistry. Forty-three different analytes, covering 56 different methods--enzymes, substrates, electrolytes, specific proteins, drugs and urine applications--were tested in seven European clinical chemistry laboratories. Additionally, the practicability of the BM/ Hitachi 917 was tested according to a standardized questionnaire. Within-run CVs (median of 3 days) for enzymes, substrates and electrolytes were <2% except for creatine-kinase MB isoform and lipase at low concentration. For proteins, drugs and urine analytes the within-run CVs were < 4% except for digoxin and albumin in urine. Between-day median CVs were generally < 3% for enzymes, substrates and electrolytes, and < 6% for proteins, drugs and urine analytes, except for lipase, creatine kinase and MB isoform, D-dimer, glycosylated haemoglobin, rheumatoid factors, digoxin, digitoxin, theophylline and albumin in urine in some materials. Linearity was found according to the test specifications or better and there were no relevant effects seen in drift and carry-over testing. The interference results clearly show that also for the BM/Hitachi 917 interference exists sometimes, as could be expected because of the chemistries applied. It is a situation that can be found in equivalent analysers as well. The accuracy is acceptable regarding a 95-105% recovery in standard reference material, with the exception of the creatinine Jaffé method. Most of the 160 method comparisons showed acceptable agreement according to our criteria: enzymes, substrates, urine analytes deviation of slope +/- 5%, electrolytes +/- 3%, and proteins and drugs +/- 10%. The assessment of practicability for 14 groups of attributes resulted in a grading of one-three scores better for the BM/Hitachi 917 than the present laboratory situation. In conclusion, the results of the study showed good analytical performance and confirmed the usefulness of the system as a consolidated workstation in medium-sized to large clinical chemistry laboratories.
Serum IgE levels have been measured in a group of 55 healthy children from 2 to 10 years of age. The IgE mean value increases with the age but no sexual differences have been found. The numerical ...distribution of the different genotypes observed in the unselected population, follows the Hardy-Weinberg law, which describes the segregation of two alleles at a single locus.
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