Search results for "CYP"

showing 10 items of 480 documents

Postmodernistyczna kultura i jej wpływ na nurty pedagogiczne – wyzwania i dylematy współczesnego pedagoga

2017

Artykuł porusza istotne problemy związane z kontekstami kultury postmodernistycznej i jej wpływem na nowe nurty pedagogiczne, ze szczególnym zwróceniem uwagi na wyzwania i dylematy współczesnego pedagoga. Relewantne są rozważania dotyczące kultury toksycznej, w stosunku do której można użyć tautologicznego stwierdzenia, że jest ona „ kulturą” nie kulturalną. Wpływ tej kultury, lansowanej w mediach, jest jednak wszechobecny i to on kształtuje postawy przyszłych pedagogów – strategów „nowych” koncepcji pedagogicznych, a także systemów oświatowych

authoritarian pedagogydilemmas of a pedagogueemancipatorymediapedagogika autorytarnaanti-pedagogyantypedagogikapostmodernizmtoxic cultureekologicznadylematy pedagogaecologicalkultura toksycznaemancypacyjnapostmodernism
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Jak doskonalić szkolne projekty edukacyjne - od empirii do praktyki

2018

Celem artykułu jest prezentacja badań własnych dotyczących wybranych aspektów realizacji projektów. Autorka, odwołując się do historycznych korzeni metody projektów, przedstawia jej główne cechy, następnie wyniki badań przeprowadzonych na grupie uczniów szkoły średniej. Przedstawiona w tekście analiza odnosi się do takich cech metody projektów, jak interdyscyplinarność, autonomia uczniów oraz procesowość pracy projektowej. Autorka zwraca uwagę zarówno na symptomy negatywne związane z doświadczeniami młodzieży i realizowanymi projektami (np. ograniczony wymiar interdyscyplinarnego podejścia czy procesowości pracy projektowej), jak i pozytywne, odnoszące się do roli nauczycieli jako osób pomo…

autonomia uczniówinterdisciplinary approachprocess-oriented approachinterdyscyplinarnośćproject methodprocesowość projektówmetoda projektówstudents' autonomyNauczyciel i Szkoła
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Bioetyki kulturowe w Ameryce Łacińskiej

2017

W artykule została przedstawiona charakterystyka bioetyki łacińskiej, jej korzenie i geneza, rozwój w poszczególnych, wybranych krajach, a także typowa problematyka. Bioetyka łacińska u swych początków jako dyscyplina akademicka czerpała głównie ze Stanów Zjednoczonych. Niewspółmierność problematyki paradygmatów bioetyki zachodniej do realiów krajów łacińskich doprowadziła do przewartościowania i prób wypracowania własnej, swoistej, bardziej adekwatnej bioetyki kulturowej.

bioetykaróżnice kulturoweBrazyliaAmeryka Łacińskapryncypializmbioróżnorodnośćprinciplismsprawiedliwość ekologicznacultural differcncesLatin Americaenvironmental justicebioethicsBrazilbiodiversityAmeryka Łacińska
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An in vitro tool to assess cytochrome P450 drug biotransformation-dependent cytotoxicity in engineered HepG2 cells generated by using adenoviral vect…

2011

Many adverse drug reactions leading to hepatotoxicity are caused by the cytochrome P450-dependent activation of non-toxic drugs or chemicals into reactive metabolites. To this end, adenoviruses were used as a tool to efficiently deliver specific CYP genes into cultured cells (i.e., human hepatoma cell line HepG2). Recombinant-defective adenoviral vectors encoding for genes CYP3A4 (Adv-CYP3A4), CYP2E1 (Adv-CYP2E1), CYP2A6 (Adv-CYP2A6) and CYP1A2 (Adv-CYP1A2) were used to confer specific CYP drug metabolic capabilities to HepG2 cells. Upgraded cells transiently expressed single specific cytochrome P450 enzymatic activities in terms of the number of the infecting virus particles used in their …

biologyCYP3A4Cell SurvivalGenetic VectorsCYP1A2Cytochrome P450Hep G2 CellsGeneral MedicineCYP2E1ToxicologyMolecular biologyAdenoviridaeTransduction (genetics)Cytochrome P-450 Enzyme SystemPharmaceutical PreparationsTransduction GeneticToxicity Tests Acutebiology.proteinHumansMTT assayViability assayCytotoxicityBiotransformationToxicology in Vitro
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Organometallic complexes with biological molecules: V.In vivo cytotoxicity of diorganotin(IV)-amoxicillin derivatives in mitotic chromosomes ofrutilu…

1995

In order to test in vivo cytotoxicity of diorganotin(IV)-amoxicillin (amox) derivatives, mitotic chromosomes of Rutilus rubilio (Pisces, Cyprinidae) have been analyzed using two different chromosome-staining techniques. Results gathered after exposure of fish to the free amox.3H 2 O, R 2 SnClamox.2H 2 O, and R 2 Snamox 2 .2H 2 O (R = methyl, butyl and phenyl ; amox - = 6-[D(-)-β-amino-p-hydroxyphenylacetamido]penicillinate) suggest that methyl derivatives seem to exert a lower cytotoxicity than butyl and phenyl ones and that R 2 Snamox 2 .2H 2 O derivatives are more toxic than R 2 Snclamox.2H 2 O at both 10 -5 and 10 -7 mol dm -3 concentrations. The following structural lesions have been id…

biologyChemistryStereochemistryChromosomeGeneral Chemistrybiology.organism_classificationmedicine.disease_causeChromosome aberrationInorganic ChemistryMoleCyprinidaemedicineRutilusCytotoxicityMitosisGenotoxicityApplied Organometallic Chemistry
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Germacrane derivatives from Santolina chamaecyparissus

1991

Abstract The aerial parts of Santolina chamaecyparissus subsp. squarrosa yieleded five new germacrane derivatives and a known eudesmane dialcohol.

biologyChemistryStereochemistryPlant ScienceGeneral MedicineHorticulturebiology.organism_classificationSesquiterpeneBiochemistrySantolina chamaecyparissuschemistry.chemical_compoundAnthemideaeOrganic chemistryMolecular BiologyPhytochemistry
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Bioelectronic monitoring of parasite-induced stress in brown trout and roach

1996

A non-contact bioelectronic monitoring system was used to record changes in heart rate, ventilation rate and swimming activity in brown trout Salmo trutta and roach Rutilus rutilus, following exposure to two species of cercariae of digenean trematodes: Diplostomum pseudospathaceum which is a common parasite in the lens of fishes and xiphidiocercariae of Plagiorchis elegans, a parasite of anatid birds, both of which have the snail Lymnaea stagnalis as their first intermediate host. Swimming activity increased significantly in roach exposed to Diplostomum cercariae at densities as low as 3.8l−1 and remained elevated for 24–36 h post exposure. Brown trout showed no response when exposed to low…

biologyEcologyIntermediate hostZoologyLymnaea stagnalisAquatic Sciencebiology.organism_classificationBrown troutCyprinidaeRutilusSalmoTrematodaEcology Evolution Behavior and SystematicsSalmonidaeJournal of Fish Biology
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Ultraviolet B Irradiation Modulates the Immune System of Fish (Rutilus rutilus, Cyprinidae) Part III: Lymphocytes¶

2001

Abstract The effects of short-term exposure to ultraviolet B (UVB) radiation on lymphocyte-related parameters were studied under controlled laboratory conditions using roach (Rutilus rutilus), a cyprinid teleost, as the model fish. In vitro lymphoproliferative responses stimulated with a T-cell–specific mitogen, concanavalin A (ConA), or a B-cell–specific activator, lipopolysaccharide (LPS), were decreased in exposed fish. Also nonstimulated proliferation was lower than in unexposed fish. ConA-activated responses returned to normal levels within 7 days after exposure, but LPS-activated responses were reduced throughout the 14 day follow-up. The capability of UVB-exposed fish to produce an a…

biologyLipopolysaccharideSpleenGeneral Medicinebiology.organism_classificationBiochemistryMolecular biologyIn vitrochemistry.chemical_compoundImmune systemmedicine.anatomical_structurechemistryConcanavalin AImmunologybiology.proteinmedicineCyprinidaePhysical and Theoretical ChemistryAntibodyRutilusPhotochemistry and Photobiology
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The perfume flowers ofCyphomandra (Solanaceae): Pollination by euglossine bees, bellows mechanism, osmophores, and volatiles

1993

The perfume syndrome and pollination by fragrance-collecting euglossine bees in the neotropic solanaceous genusCyphomandra was confirmed by field observations. In SE Brazil,C. sciadostylis was visited byEufriesea violaceae, andC. diploconos byEuglossa mandibularis; C. hartwegii was pollinated byEulaema meriana in Costa Rica. The primary attractant, fragrant droplets that ooze from the dorsally bulged connectives, is mopped up by the males with the forebasitarsi. Thereby, the poricidal thecae are inadvertently pushed causing the dry pollen to dust the bee's sternum. The number and direction of the pollen jets are related to pollinator size and stigma structure. The flowers are homogamous, se…

biologyPollinationApidaeStamenPlant Sciencebiology.organism_classificationmedicine.disease_causeApoideaPollinatorPollenBotanymedicineEcology Evolution Behavior and SystematicsCyphomandraEulaema merianaPlant Systematics and Evolution
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Organometallic complexes with biological molecues, part 3.in vivo cytotoxicity of diorganotin (IV) chloro and triorganotin (IV) chloro derivatives of…

1994

In order to obtain a continuous source of mitotic metaphases, gill tissue of Aphaius fasciatus (Pisces, Cyprinodontiformes) has been successfully employed. Results gathered after exposure of fish to R2SnClpenG, R3SnClpenGNa, to the parents R2SnCl2, R3SnCl and to penGNa (penGNa = penicillinGNa; R = methyl, butyl and phenyl) suggest that both the parent organotin (IV) chloride and organotin (IV) chloropenG derivatives are toxic while penGNa exerts no significant toxic activity. Essentially, all of the chromosome abnormalities are classifiable as irregularly staining of chromosomes, breakages, side-arm bridges or pseudochiasmata.

biologyStereochemistryChemistryMutagenBiological activityGeneral Chemistrybiology.organism_classificationmedicine.disease_causeChromosome aberrationStainingInorganic ChemistryIn vivomedicineCyprinodontiformesMitosisGenotoxicityApplied Organometallic Chemistry
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