Wyniki wyszukiwania - Biblioteka Nauki

1

Evaluation of activities aimed at preventing microbiological risks in dental practice

100%

Szymańska J. , Sitkowska J.

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tom 64

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nr 1

11-17

PL

Wstęp: Mikrobiologiczne skażenie wody w instalacji wodnej unitów dentystycznych stwarza zagrożenie zakażeniami krzyżowymi, stanowiąc źródło szkodliwych czynników biologicznych w środowisku pracy stomatologa. Celem badań była ocena wiedzy dentystów na temat skażenia mikrobiologicznego wody z unitów dentystycznych oraz zakresu czynności/procedur, które powinny być podejmowane w celu monitorowania tego skażenia. Materiał i metody: Badanie ankietowe przeprowadzono w 2010 r. wśród 107 polskich stomatologów używających unitów dentystycznych w praktyce klinicznej. Wyniki: W codziennej pracy dentyści nie stosują procedur minimalizujących/eliminujących mikrobiologiczne skażenie wody w zbiornikach unitów dentystycznych. Nie mają oni wiedzy na temat skażenia instalacji wodnej dostarczającej wodę do końcówek roboczych, nie znają zasad postępowania z wodą z unitów ani z instalacją wodną, nie są też świadomi zagrożeń zdrowotnych stwarzanych przez mikrobiologiczne skażenie wody w unitach dla zespołu stomatologicznego i pacjentów. Wnioski: Konieczne jest dostarczenie dentystom informacji na temat problemu mikrobiologicznego skażenia wody w unitach dentystycznych oraz procedur prawidłowego postępowania z wodą w instalacjach wodnych unitów. Med. Pr. 2013;64(1):11–17

EN

Background: Microbiological contamination of water in dental unit waterlines (DUWL) creates a risk of cross-infections, and is a source of biological risk factors in the work environment of a dentist. The aim of the study was to evaluate dentists' knowledge on DUWL microbiological contamination and the scope of activities/procedures they undertake to monitor it. Material and Methods: The questionnaire survey was conducted in 2010 among 107 Polish dentists using dental units in everyday clinical practice. Results: It has been found that in their daily practice, dentists do not follow procedures leading to reduction or elimination of microbiological contamination of dental unit reservoir water. They are not aware of microbiological contamination of DUWL that supply working handpieces with water. They are unaware of the principles of dealing with dental water and water supply systems or the health risk posed by microbiological contamination of unit water for a dental team and patients. Conclusions: It is necessary to provide dentists with information on microbiological contamination of water in dental units, on the correct procedures of handling water and waterlines that supply working handpieces with water. Med Pr 2013;64(1):11–17

2

Distribution of epiphytic bacteria on the surface of selected species of helophytes and nimpheides from the littoral zone of the Southern part of Jeziorak Lake in Poland

100%

Lalke-Porczyk E. , Donderski W.

Polish Journal of Environmental Studies

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2003

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tom 12

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nr 1

EN

Research was carried out on the total number of bacteria and the number of heterotrophic epiphytic bacteria occurring on the surface of four selected species of freshwater macrophytes predominant in the littoral zone of the southern part of Lake Jeziorak. The highest numbers of bacteria inhabiting the studied plants were found on the surface of the stems of lesser reedmace, and the lowest numbers on the surface of leaves of floating pond-weed. It was shown that the number of epiphytic bacteria depends on the species of plant, which fragment of it, and the season in which the research is conducted. The results obtained are illustrated with photographs taken under a scanning electron microscope.

3

Neustonic bacteria number, biomass and taxonomy

84%

Donderski W. , Walczak M. , Mudryk Z. , Kobylinski M.

Polish Journal of Environmental Studies

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1999

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tom 08

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nr 3

4

Aromatic hydrocarbons decomposition by neustonic bacteria. Part II - Policyclic aromatic hydrocarbons biodegradation

84%

Walczak M. , Donderski W. , Mudryk Z. , Skorczewski P.

Polish Journal of Environmental Studies

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2001

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tom 10

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nr 1

EN

The present paper provides results of a study on heterotrophic bacteria occurrence and quantity in the biofilm and subsurface water of lake Jeziorak Maty. Degradation of several polycyclic aromatic hydrocarbons (PAH's) (anthracene, naphthalene) by neustonic and planktonic bacteria have been examined. It has been discovered that some aromatic hydrocarbons were better decomposed by neustonic bacteria than by planktonic ones. Both Total Number of bacteria (TN) and heterotrophic bacteria number (TVC) were higher in the surface microlayer than in the subsurface water.

5

Epiphytic bacteria inhabiting the yellow waterlily [Nuphar luteum L.]

67%

Donderski W. , Kalwasinska A.

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2002

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tom 11

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nr 5

EN

Studies on the development dynamics and the physiological properties of heterotrophic bacteria growing on the surface of the yellow waterlily (Nuphar luteum L.) during the plants’ development cycle were carried out. It was stated that the number of the epiphytic bacteria is different in the examined sections of the plant. The number is higher on bottom parts of petioles and rhizomes but lower on the surface of leaf blades and petioles beneath the leaf blade. The number of the epiphytic bacteria oscillated between 0.54 x 106 and 37.85 x 106 cells per 1g of wet weight of the plant. The gram negative rods dominated among the epiphytic bacteria, the majority of which was slowly growing strains. Among the epiphytic bacteria the most numerous strains were those hydrolyzing fat, starch, and protein; the least numerous were the chitinolytic bacteria.

6

Wplyw herbicydow na procesy mikrobiologiczne w jeziorach

51%

Godlewska-Lipowa W. A.

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nr 1

128-132