Word: antonio
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Dates: during 1990-1999
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...DECEPTIVE COAT OF VARNISH? One challenge to the radiocarbon dating that has received a good deal of publicity is that of Dr. Leoncio Garza-Valdes, a San Antonio, Texas, pediatrician with interests in microbiology and archaeology. In 1983, while examining a Mayan jade artifact that art experts claimed was a recent forgery, Garza-Valdes discovered that it was covered by a lacquer-like coating produced by bacteria. Since it also had traces of ancient blood on it that should have been datable by the radiocarbon method, he took it to the University of Arizona dating lab, where scientists scraped...
...years later, working with microbiologist Stephen Mattingly of the University of Texas Health Science Center at San Antonio, Garza-Valdes determined that the coating was embedded with "coccal-shaped bacteria and filamentous mold-like organisms." In some places, the coating increased the diameter of the fibers as much as 60%--which the two scientists say could be enough to skew the radiocarbon dating by 1,300 years. What is more, this coating--which is transparent and thus invisible to the naked eye--cannot be removed by the conventional cleaning methods of most radiocarbon labs. Properly cleaned, says Mattingly, "I think...
...burial cloth of Jesus Christ" and that he thinks the blood on the shroud is human, male and ancient. In the early 1990s, Garza-Valdes asked Victor Tryon, director of the Center for Advanced DNA Technologies at the University of Texas Health Science Center at San Antonio, to help him identify the organisms he believed were present in the shroud samples. To do so, he used a technique that enabled him to make millions of copies of the infinitesimally small segments of DNA contained in sticky-tape samples of the shroud...
...Antonio at Seattle...
...Antonio 110, Vancouver...