允许 发表于 2025-3-23 13:45:35
Samuel M. Cohenende Handlung darstellt; in jedem Fall handelt es sich demnach um ein Reflektieren . eine Handlung, eine Aktivität oder ein Phänomen und nicht um eine Reflexion in der Handlung (Futter, 2017; vgl. mit Schön, 1987: . vs. .). Bezogen auf Unterrichtsbesprechungen kann also angenommen werden, dass hierFRET 发表于 2025-3-23 16:35:49
Mont R. Juchauende Handlung darstellt; in jedem Fall handelt es sich demnach um ein Reflektieren . eine Handlung, eine Aktivität oder ein Phänomen und nicht um eine Reflexion in der Handlung (Futter, 2017; vgl. mit Schön, 1987: . vs. .). Bezogen auf Unterrichtsbesprechungen kann also angenommen werden, dass hierdura-mater 发表于 2025-3-23 19:38:06
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Species Differences in Response to Aromatic Amines,de benzidine, 4-aminobiphenyl, 2-acetylaminofluorene (AAF), and 2-aminonaphthalene (1). Even for these known carcinogens there are sizable variations in species response; the most striking occurs with AAF where at least 15 species have been tested (2). With this compound the guinea pig, cotton rat,STENT 发表于 2025-3-24 05:53:39
Aflatoxin B1: Correlations of Patterns of Metabolism and DNA Modification with Biological Effects,latoxins and other chemical carcinogens are mediated by activation through metabolism by one or more of the mixed-function oxidases and subsequent covalent modification of cellular macromolecules (1). Experimental evidence indicates that AFB.-2,3-oxide is the ultimate reactive metabolite (2,3). It i注入 发表于 2025-3-24 09:21:59
Species Specificity in Nitrosamine Carcinogenesis,e in another. N-Nitroso compounds, on the other hand, are commonly carcinogenic in all species examined, but induce tumors of different cell types and in different organs from one species to the next. This variability is particularly true of nitrosamines, whose organ and species specificity are probbeta-carotene 发表于 2025-3-24 12:01:25
Organ Specificity and Interspecies Differences in Carcinogenesis by Metabolism-Independent Alkylaticlude some of the most potent known mutagens and carcinogens. Their conversion to reactive intermediates requires no enzyme-mediated catalysis, and in this respect these compounds differ from the great majority of organic chemical carcinogens. Many of the direct-acting alkylating agents have been us增强 发表于 2025-3-24 18:23:13
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Chemical Carcinogenesis Studies in Nonhuman Primates, man, and the problem of risk assessment for humans remains largely unsolved. Extrapolation of rodent carcinogenesis data to man is particularly difficult because of known species differences in metabolic pathways (both activation and detoxification), involving potentially carcinogenic chemicals. NoInfelicity 发表于 2025-3-25 01:03:45
Organ Specificity and Tumor Promotion,red on compounds termed tumor promoters. Tumor promoters cause or allow the expression of the latent tumor phenotype induced in some cells by limited doses of carcinogens. Both chemical and physical stimuli can act as tumor promoters. Interest in tumor promotion is appropriate since this phase of ca