Full-text resources of CEJSH and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl

Results found: 5

first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Publication available in full text mode
Content available

Urzędowe kontrole zafałszowań środków spożywczych w świetle obowiązującego prawa żywnościowego

100%
Kolodziejczyk M., Kowrygo B.
Problemy Rolnictwa Światowego
|
2008
|
vol. 05(20)
EN
Formation of the common European food market, aimed at freeing flow of goods, contributed to limitation of basic, obligatory quality standards for food in Poland. Adaptation of food prices to the level affordable by Polish households is correlated with food quality. Liberalization of food standards enable producers to engage in fraudulent practices such as adulteration of food. Results of official controls show various interpretations of the definition of ‘food adulteration’ which is inherent in the Polish regulation.
PL
Tworzenie wspólnotowego rynku żywnościowego i dążenie do swobodnego przepływu towarów przyczyniły się do ograniczenia obligatoryjnych wymagań w zakresie podstawowych norm jakościowych środków spożywczych w Polsce. Dostosowywanie cen żywności do możliwości nabywczych polskich gospodarstw domowych odbywa się kosztem jakości produktu. Liberalizacja przepisów w odniesieniu do podstawowych norm ułatwia producentom stosowanie nieuczciwych praktyk handlowych, polegających między innymi na fałszowaniu żywności. Wyniki kontroli urzędowych wskazują na niejednolitą interpretację zawartej w prawie krajowym definicji "środka spożywczego zafałszowanego".
2
Publication available in full text mode
Content available

Działania organizacji rządowych na rzecz zapewnienia odpowiedniej jakości produktów na przykładzie ryb i ich przetworów

100%
Kolodziejczyk M., Kowrygo B.
Problemy Rolnictwa Światowego
|
2007
|
vol. 02(17)
EN
Introduction of European food law in Poland has caused changes in the governmental activities aimed at ensuring the appropriate quality of food products including fishery products. Food hygiene and food safety have gained in importance. However abolition of the obligatory Polish Standards has significantly reduced the number of obligatory parameters that applied to fish and fishery products. The abundance of regulations requires new detailed analyses.
PL
Wprowadzenie w Polsce wspólnotowego prawa żywnościowego spowodowało zmiany w zakresie działań organizacji rządowych na rzecz zapewnienia odpowiedniej jakości produktów, w tym ryb i ich przetworów. Dużo większą rolę odgrywa zapewnienie odpowiedniej higieny produkcji i bezpieczeństwa żywności. Zniesienie obowiązku stosowania Polskich Norm znacząco ograniczyło zakres obligatoryjnych parametrów jakie muszą spełniać ryby i przetwory rybne. Mnogość przepisów prawnych wymaga opracowywania ich szczegółowych analiz.
3

Computational simulation of pressure changes during embryo transfer

61%
Mrugacz G., Grygoruk C., Kolodziejczyk M., Gagan J., Ratomski K., Grusza M.
Progress in Health Sciences
|
2013
|
vol. 3
|
issue 2
21-25
EN
Purpose: The embryo transfer into the uterus by a transcervical catheter is the final stage of in-vitro fertilization procedure. This study was designed to analyze the influence of injection speed on pressure fluctuation inside the transferred fluid. Methods: Computational fluid dynamics was applied to calculate pressure changes in the transferred load for the following injection speeds: 0.01, 0.1, 1, 6, 12 and 20 m/s. A 3D geometrical model of the flow domain was created in ANSYS Modeler. The computations were carried out using the CFD code Parallel ANSYS Fluent 12.1 with the segregated solver SIMPLE (Semi-Implicit Method for Pressure-Linked Equations). The model was solved in double precision on a control volume unstructured 3D mesh made in ANSYS Mesher. Results: The results of the present study indicate that the total, static and dynamic pressures rise with increase of the injection speed of the transferred load. Conclusions: Taking these results into consideration, it is advised to transfer the embryos with minimal injection speed because the magnitude of the pressure changes rises with the injection speed of the transferred load.
4

Shear stress during embryo transfer.

61%
C, Grygoruk, Mrugacz G., Kolodziejczyk M., Gagan J., Ratomski K., Grusza M.
Progress in Health Sciences
|
2013
|
vol. 3
|
issue 2
7-10
EN
Purpose: This study was designed to analyze the influence of injection speed on the shear stress acting on the embryo during the ejection phase of embryo transfer. Methods: Computational fluid dynamics was applied to calculate shaer stress for the following injection speeds: 0.01, 0.1, 1, 6, 12 and 20 m/s. A 3D geometrical model of the flow domain was created in ANSYS Modeler. The computations were carried out using the CFD code Parallel ANSYS Fluent 12.1 with the segregated solver SIMPLE (Semi-Implicit Method for Pressure-Linked Equations). The model was solved in double precision on a control volume unstructured 3D mesh made in ANSYS Mesher. Results: The results of the present study indicate that shear stress increases with the rise of the injection speed. Furthermore, shear stress is lower when the embryo is positioned in the midstream of the catheter instead of in proximity to the catheter’s wall. Conclusions: Taking these results into consideration, it is advised to transfer embryos with minimal injection speed because the strength of shear stress increases with the injection speed of the transferred load.
5

Fluid velocity during embryo transfer

61%
Mrugacz G., Grygoruk C., Kolodziejczyk M., Gagan J., Ratomski K., Grusza M.
Progress in Health Sciences
|
2013
|
vol. 3
|
issue 2
17-20
EN
Purpose: The embryo transfer into the uterus by a transcervical catheter is the final stage of in-vitro fertilization procedure. So far, a little attention has been placed on the impact of embryo transfer procedure on embryo viability. This study was designed to analyze fluid velocity changes in the transferred load during the injection phase of embryo transfer. Materials and methods: Computational fluid dynamics was applied to calculate fluid velocity changes in the transferred load for the following injection speeds: 0.01, 0.1, 1, 6, 12 and 20 m/s. A 3D geometrical model of the flow domain was created in ANSYS Modeler. The computations were carried out using the CFD code Parallel ANSYS Fluent 12.1 with the segregated solver SIMPLE (Semi-Implicit Method for Pressure-Linked Equations). The model was solved in double precision on a control volume unstructured 3D mesh made in ANSYS Mesher. Results: The transferred fluid velocity was highest in the center of the catheter lumen and lowest at the proximity of the catheter’s wall. The narrowing of catheter lumen diameter by 20% amplified the transferred fluid velocity by 78%. The abrupt increase in fluid velocity, caused by narrowing of the catheter tip was followed by the abrupt drop of fluid velocity outside the catheter. Conclusions: Taking these results into consideration, it is advised to eliminate any narrowing of the catheter lumen in order to assure more favorable conditions for the transferred embryos.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.