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In this article, it is shown a solar radiation tracking system, in which is used an optical sensor TAOS TCS-230 for measuring the solar radiation, a microcontroller from Microchip PIC 16F877 family and an embedded system Raspberry Pi model B which processes the measurements and transmits to a UDP server. The system stores the data in a database to lock up the integrity of such information, the data...
Crystal structures of 2-nitroestradiol and 4-nitroestradiol showed two different molecular conformations for each compound. The crystal structure of 4-nitroestradiol, as well as that of 4-nitroestrone-3-methyl ether, displayed a nitro group in which the oxygens were perpendicular to the aromatic ring and were thus nonconjugating. On the other hand, the nitro-oxygens in 2-nitroestradiol were periplanar,...
AbstractPurpose. Pyrazoloacridine (PZA) is a newly developed anticancer agent currently undergoing clinical trials. Its mode of action has not been elucidated but the presence in its chemical structure of a 5-nitro functional group and its activity against oxygen-deficient cancerous cells argue in favor of enzymatic nitro reduction as a possible pathway for its antitumor activity. In order to assess...
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