粗鄙的人
发表于 2025-3-26 22:39:18
Computer Simulation at High Pressure,hat compete for the food supply so that man will have enough to eat during his extended lifetime. Now these poisons are reaching levels in the environment where the life span of man is again being shortened by both immediate and long-term effects caused by these pesticides..Hundreds of thousands of
江湖骗子
发表于 2025-3-27 04:00:04
https://doi.org/10.1007/978-94-009-3827-4of mycotoxins are produced by different fungi, but aflatoxins have been investigated more extensively. Varied reports are available on the production of aflatoxins by different species of Aspergillus and Penicillium; however, . and . have the greatest capacity and appear to be the primary sources of
Harness
发表于 2025-3-27 06:39:12
Organic Synthesis at High Pressureomitant cytotoxicity. Stronger carcinogens usually induced breaks at relatively nontoxic concentrations. These observations led us to propose that chronic toxicity may be weakly carcinogenic through a cell-mediated mechanism without the necessity for a compound to directly attack DNA. The proposed m
happiness
发表于 2025-3-27 12:25:07
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胶水
发表于 2025-3-27 17:26:35
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增长
发表于 2025-3-27 17:48:31
Modern Aspects of High Pressure Chemistryally, in lower eukaryotes, thymidylate deprivation and excess are recombinagenic and dTMP depletion also produces DNA strand breakage. In higher eukaryotes, imbalances in thymine nucleotide pools provoke chromosome breaks and rearrangements, and inhibition of thymidylate biosynthesis causes morpholo
机制
发表于 2025-3-28 01:18:00
Recent Developments in Diamond-Anvil Cells,ansformation of xenobiotics. These enzyme systems are of great importance in such diverse fields as insecticide resistance, mutagenicity, carcinogenicity, drug metabolism, etc. The constitutive and, in particular, the induced forms represent various products from a multigene family. This has first b
特征
发表于 2025-3-28 05:18:50
H. G. Drickamer,Z. A. Dreger,J. M. Langteen short-term bioassays. The genetic endpoints used included point or gene mutation, primary DNA damage, and chromosomal effects. Initially, all pesticides were tested in a “core” battery of four . bioassays. A carefully selected group among these chemicals was retested in higher level test system
Glossy
发表于 2025-3-28 09:42:27
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covert
发表于 2025-3-28 12:36:30
Water Contamination and Environmental Mutagens and problems. Examples of pollution involving surface, ground, and irrigation water are presented. The Salmonella mutagenesis assay has proven to be a valuable bioassay for detection and isolation of unknown water-borne mutagens, and is useful in monitoring the levels of mutagenic pesticides.