Diagnostic difficulties in the differentiation of urine retention and developmental anomalies in the pelvicalyceal system in the ultrasound examination of children

Ultrasound examination of the abdominal cavity is part of the baseline diagnostics of urinary tract diseases. Dilatation of the pelvicalyceal system is one of the most frequent findings. In ultrasonography of the urinary tract there are, however, some images of anatomical anomalies of the pelvicalyceal system which should not be consider as abnormal. In the study we analysed 920 ultrasound examinations of the urinary tract. Of all the ultrasound images only those with isolated dilatation of the renal pelvises and calices were selected (130 cases). Ampulla-shaped and/or external pelvises, isolated calices or both abnormalities were disclosed in 104, 46 and 20 cases, respectively. In about one-third of patients additional examinations (voiding cystography, intravenous urography, renal scyntygraphy) were performed which revealed normal anatomy of the urinary tract and disorders of urine flow in 80% and 20% of patients, respectively. In conclusion, the study implies that not all dilatation of the pelvicalyceal system structures signifies urine retention, although in the event of further doubt, there is a need for additional diagnostics

Environmental Applications of Biosurfactants: Recent Advances

Increasing public awareness of environmental pollution influences the search and development of technologies that help in clean up of organic and inorganic contaminants such as hydrocarbons and metals. An alternative and eco-friendly method of remediation technology of environments contaminated with these pollutants is the use of biosurfactants and biosurfactant-producing microorganisms. The diversity of biosurfactants makes them an attractive group of compounds for potential use in a wide variety of industrial and biotechnological applications. The purpose of this review is to provide a comprehensive overview of advances in the applications of biosurfactants and biosurfactant-producing microorganisms in hydrocarbon and metal remediation technologies

Biodegradation of petroleum-waste by biosurfactant-producing bacteria

Abstract The degradation of petroleum waste by mixed bacterial cultures which produce biosurfactants: (reaching up to 29 % in the first 72 h). Similarly, the toxicity of the biodegraded petroleum waste decreased 3 times after 30 days as compared to raw petroleum waste. Thus, the mixed bacterial strains effectively clean-up the petroleum waste and they can be used in other bioremediation processes

Eco innovations in the production of fiscal cash registers – ergonomic and technological aspects

W artykule przedstawiono w sposób poglądowy historię produktu, na przykładzie kas fiskalnych, uwzględniając ekoinnowacyjną technologię wytwarzania, która ogranicza negatywne oddziaływanie na środowisko oraz gwarantuje bezpieczeństwo, a także ergonomiczność produktu (właściwe dostosowanie do człowieka), która wpływa pozytywnie na jego funkcjonalność i użyteczność oraz zaspokaja potrzeby estetyczne i komfort użytkowania.It present in article, to visual manner, history of product, on example of fiscal cash registers, taking into consideration ecoinnovative technology fabricate which limits negative interaction on environment and safety guarantees, as well as ergonomic product (proper (suitable) fitting for person), which effects on its funcionality positively and utility and it alleviates esthetic requirements and comfort of use