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    Wyświetlanie 1-5 z 5
    Tytuł:
    Sterilisation of nanobubble dispersions
    Autorzy:
    Ulatowski, Karol
    Fiuk, Julia
    Sobieszuk, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/184996.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nanobubbles
    nanodispersion
    sterilisation
    filtration
    ultrasonication
    nanobąbelki
    nanodyspersja
    sterylizacja
    filtrowanie
    ultrasonikacja
    Opis:
    In this paper, three methods of sterilisation are compared to determine their usability in nanobubbledispersion sterilisation: filtration, thermal sterilisation and sonication (in twosystems: using a sonotrodeand sonication bath). Nanobubble dispersions are most commonly generated in non-sterile systemswhich precludes them from use in most biological research. As a result of this study, filtration waschosen as the best method for nanobubble sterilisation.
    Źródło:
    Chemical and Process Engineering; 2020, 41, 1; 69--76
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dobrowolna sterylizacja. Uwagi de lege lata
    Autorzy:
    Holocher, Justyna
    Powiązania:
    https://bibliotekanauki.pl/articles/1788195.pdf
    Data publikacji:
    2015-09-01
    Wydawca:
    Polska Akademia Nauk. Instytut Nauk Prawnych PAN
    Tematy:
    dobrowolna sterylizacja
    prawa człowieka
    sterylizacja
    prokreacja
    prawa pacjenta
    komparatystyka
    czyn zabroniony
    voluntary sterilisation
    human rights
    sterilisation
    procreation
    comparative law
    prohibited act
    Opis:
    The matter under discussion refers to the problem of voluntary sterilisation. The speculations contained in the article, are considered with references to the polish and international law. The fundamental argument demonstrated above, resolves itself to the statement that, despite lack of any judicial regulations related to that kind of  operations directly, sterilisation is legal primary, accepted in polish law. That thesis is based on the law principles eg, freedom and right to self-determination. Voluntary sterilisation is a kind of realization the fundamental right of every human being, woman and man, to the possessing or not possessing children responsibly. Moreover, sterilisation can be observed as a realization of right to access to any kind of methods enabling using that procedure. In particular, right to the procreation includes also the possibility of resignation of it, even though, that resignation has a final and irreversible character, and consequences can be qualified as a serious injury in the criminal law definition. As a result, voluntary sterilisation of an adult, responsible and accountable person, realised with her acceptation can not be considered as an illegal operation, apart from the reasons of that decision.
    Źródło:
    Studia Prawnicze; 2015, 1 (201); 57-79
    0039-3312
    2719-4302
    Pojawia się w:
    Studia Prawnicze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    When Law Forgets About Dignity”: Selected Historical and Modern Contexts of Sterilisation of People with Disabilities
    Autorzy:
    Sobański, Piotr
    Kmieciak, Błażej
    Powiązania:
    https://bibliotekanauki.pl/articles/941375.pdf
    Data publikacji:
    2020-08-04
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    human dignity
    sterilisation of disabled people
    human rights
    eugenics
    suffering
    Opis:
    What is human dignity? How to define the dignity of a person? Is it possible to identify key features that show the principles of respecting the dignity of another person? Attempts to define the concept indicated here may inevitably fail. On the one hand, human dignity is a universal concept. It refers to all people. Nevertheless, on the other hand, each of us has our own sense of dignity. Paradoxically, e.g., humiliation of a particular person’s dignity shows us the importance of the area that has been violated. Similar violations often affect sick and disabled persons. Examples of similar activities throughout human history abound. In this context, special attention should be paid to the interventions undertaken by the Nazis before theoutbreak of WWII. Here, we are talking especially about mass and legalised activities that resulted in the sterilisation of many thousands of people with intellectual disabilities, people with physical disabilities and people experiencing mental disorders. The Nazi practices indicated here are presented as examples of human right violations. At the same time, they are examples of the unlawful rule of the state over an individual. Is there still a danger of reverting to similar practices today? Can standards of respect for human rights created years ago successfully protect disabled people against violation of their dignity? Can the knowledge of Nazi activities still be important to us? The presented article is intended as an attempt at answering these questions.
    Źródło:
    Interdyscyplinarne Konteksty Pedagogiki Specjalnej; 2020, 28; 129-148
    2300-391X
    Pojawia się w:
    Interdyscyplinarne Konteksty Pedagogiki Specjalnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cytotoxicity of three-dimensional paper-based models from a three-dimensional paper-based printer
    Cytotoxicité des modèles tridimensionnels imprimés en papier
    Autorzy:
    Kozakiewicz, Marcin
    Szymor, Piotr
    Olszewski, Raphael
    Powiązania:
    https://bibliotekanauki.pl/articles/2129266.pdf
    Data publikacji:
    2018-08-26
    Wydawca:
    Presses Universitaires de Louvain
    Tematy:
    cytotoxicité; stérilisation; impression 3D
    imprimante 3D
    cytotoxicity; sterilization; three-dimensional printing, three-dimensional printer
    Opis:
    Objective: Our study aimed to determine the possibility of using models created with a low-cost, paper based 3D printer in an operating room. Therefore influence of different methods of sterilization on models was tested and cytotoxicity of generated models was determined. Material and methods: 30 cuboids divided into three groups were used for verification of shape stability after sterilization. Each group was sterilized either with: Ethylene oxide in temperature 55˚C, Hydrogen peroxide gas plasma in temperature 60˚C or Gamma irradiation at 21˚C, 25kGy. Each cuboid was measured using calliper three times before and three times after sterilization. Results were analysed statistically in Statgraphics Plus. Statistical significance was determined as p< 0.05. Sixty cylinders divided into six groups were used for cytotoxicity tests. Three of those groups were covered before sterilization with 2-octyl-cyanoacrylate. Each group was sterilized with one of the previously described methods. Cytotoxicity was tested by Nanostructural and Molecular Biophysics Laboratory in Technopark Lodz using normal adult human dermal fibroblasts. Survival of cells was tested using spectrophotometry with XTT and was defined as ratio of absorbency of tested probe to absorbency of control probe. Calcein/Ethidium dyeing test was performed according to LIVE/DEAD Viability/Cytotoxicity Kit protocol. Observation was done under Olympus GX71 fluorescence microscope. Results: There was no statistically significant difference for established statistical significance p=0.05 in cuboids dimensions before and after sterilization regardless of sterilization method. In XTT analysis all samples showed higher cytotoxicity against normal, human, adult dermal fibroblast culture when compared to positive control. ANOVA statistical analysis confirmed that 2-octyl cyanoacrylate coating of paper model improved biological behaviour of the material. It decreased cytotoxicity of the model independently of sterilization method. In calcein/ethidium dyeing test due to the high fluorescence of the background caused by cylinders of analysed substance it was impossible to perform the exact analysis of the number of marked cells. Conclusions: Acquired results allow to conclude that Mcor Technology Matrix 300 3D paper-based models can be used in operating room only if covered with cyanoacrylate tissue adhesive. Nemesis relevance: We found no statistically significant difference in cuboids dimensions before and after sterilization regardless of sterilization method. Three-dimensional paper-based models present with high cytotoxicity without coating.
    Objectif: Notre étude consistait à déterminer s'il était possible d'utiliser en salle d'opération des modèles tridimensionnels (3D) issus d’une imprimante tridimensionnelle utilisant du papier. Pour cela nous avons testé l'influence de différents types de stérilisation sur les modèles ainsi que la cytotoxicité des modèles imprimés en papier.  Matériel et méthodes: 30 cubes divisés en trois groupes ont été utilisés pour vérifier la stabilité de la forme après la stérilisation. Chaque groupe a été stérilisé avec: l’oxyde d'éthylène à 55˚C, peroxyde d’hydrogène à 60˚C et irradiation aux rayons gamma à 21˚C, 25kGy. Chaque cube a été mesuré avec un pied à coulisse trois fois avant et trois fois après la stérilisation. La signification statistique a été établie à p< 0.05. Soixante cylindres, divisés en trois groupes, ont été utilisés pour les tests de cytotoxicité. Trois de ces groupes ont été couverts, avant la stérilisation, avec du 2-octyl-cyanoacrylate. Chaque groupe a été stérilisé avec une des méthodes de stérilisation décrite ci-dessus. La cytotoxicité a été testée en utilisant des fibroblastes dermiques humains adultes normaux. La survie des cellules a été testée en utilisant la spectrophotométrie avec XTT. L’observation a été réalisée avec le microscope à fluorescence Olympus GX71. Résultats: Il n’y avait pas de différence significative dans les dimensions des cubes avant et après la stérilisation et ce pour les trois méthodes de stérilisation. Avec l’analyse XTT tous les échantillons ont démontré une cytotoxicité supérieure par rapport à une culture de fibroblastes dermiques humains adultes normaux de contrôle. L’analyse statistique ANOVA a confirmé que l’enrobage avec du 2-octyl cyanoacrylate des modèles papier améliorait le comportement biologique du matériau. Cet enrobage réduisait la cytotoxicité du modèle indépendamment de la méthode de stérilisation. Conclusions: les modèles 3D à base du papier 3D issus de l’imprimante Mcor Technology Matrix 300 peuvent être utilisés dans la salle d’opération seulement s’ils sont enrobés avec la colle biologique à base de cyanoacrylate. Rapport avec Nemesis: Nous n’avons pas trouvé de différence significative des dimensions des cubes avant et après la stérilisation indépendamment de la technique de stérilisation utilisée. Les modèles 3D à base du papier présentent une haute cytotoxicité cellulaire sans enrobage.
    Źródło:
    Nemesis. Negative Effects in Medical Sciences Oral and Maxillofacial Surgery; 2018, 3, 1; 1-15
    2593-3604
    Pojawia się w:
    Nemesis. Negative Effects in Medical Sciences Oral and Maxillofacial Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of Sterilisation and Strain Hardening in Drawing Process on Resistance to Electrochemical Corrosion of Wires Intended in Cardiology
    Autorzy:
    Przondziono, J.
    Hadasik, E.
    Walke, W.
    Mendala, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/351704.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wires made of stainless steel X2CrNiMo 17-12-2
    flow stress and flow curve
    electrochemical corrosion in artificial plasma solution
    sterilisation
    Opis:
    The study presents results of tests of impact of work hardening in cold drawing process, surface treatment and sterilisation on resistance to electrochemical corrosion of wires made of stainless steel X2CrNiMo 17-12-2 intended for cardiology. Potentiodynamic tests were performed on the ground of registered anodic polarisation curves in artificial plasma solution. Static uniaxial tension test made the ground for determination of strength characteristics of wires and the flow curve. Functions presenting the change of polarisation resistance according to strain applied in drawing process were selected. Test results show deterioration of corrosion properties of wires with work hardening. Surface modification of passivated surface caused increase of resistance of stainless steel wires to electrochemical corrosion, whereas sterilisation with pressurised water steam deteriorated that resistance.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 1; 249-252
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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