Investigations on the process of enzymatic cleaning the cucumber seeds

Przedstawiono badania enzymatycznego czyszczenia nasion ogórka. Opracowana metoda składa się z: odkażanie w kwasie solnym (usuwanie wirusów), mycie w wodzie do pH=4 i obróbce nasion w enzymie. Opisano metodykę i aparaturę pozwalającą na wdrożenie badanej metody.Investigations on the process of enzymatic cleaning the cucumber seeds have been presented. The present method includes disinfection in hydrochloride acid (virus removal), washing in water up to pH=4 and processing the seeds in enzyme. A method and an apparatus for its application were described

Neonatal cranial ultrasonography as predictor of 2 year outcome of very low birthweight infants

Abstract Real time ultrasound scans using an ATL 300C sector scanner with 5–7.5 MHz transducer were performed on days 1, 4, 7 and thereafter as clinically necessary on 153 consecutively discharged very low birthweight (VLBW) infants. One hundred and forty-six long-term survivors were assessed fully at 2 years. The prevalence of cerebroventricular haemorrhage (CVH) in these survivors was 34.2% (grade 1—21.2%; grade 2—4.8%; grade 3—3.4%; grade 4—4.8%), ventricular dilatation 19.9% (including 4.1% with ventriculoperitoneal shunt), and ischaemia 9%. Impairments at 2 years were classified as nil, mild, moderate, severe or multiply severe, based on the criteria of Kitchen et al. Overall, 120 infants (82.2%) were unimpaired and 6.2% had mild, 3.4% had moderate, 4.1% had severe and 4.1% had multiply severe impairment. The major factors associated with impairment were gestational age < 28 weeks, birthweight < 1000 g, vaginal delivery, respiratory distress syndrome, mechanical ventilation, pulmonary air leaks and CVH. When these factors were reanalysed in a logistic regression model for odds ratios, only CVH (P < 0.005) and birth by spontaneous vaginal delivery (P < 0.05) were significant. The prevalence of impairment was 11.4% with no CVH, 6.5% grade 1, 71% grade 2, 20.0% grade 3 and 100.0% grade 4 CVH. The sensitivity of CVH of grade 2 or greater as a screening test was 64.7% for impairment, 78.6% for cerebral palsy and 70% for severe intellectual handicap. The mean general quotient (GQ) (Griffiths) at 2 years for infants with CVH was 89.1, and 97.5 for those without CVH (P < 0.001). Although infants with ventricular dilatation had an average GQ that was 13.1 units less than those with normal ventricles, the difference was only significant in those with a CVH of grade 2–4. The study shows the sonographic diagnosis of CVH and ventricular dilatation, but not ischaemia, to be a useful adjunct in predicting impairment and intellectual performance in VLBW infants but does not replace the need for multidisciplinary follow-up