Technology resistant materials coursework

In 1999, it was reported that pollen from Bt corn had a negative impact on Monarch butterfly larvae. This report raised concerns and questions about the risks of Bt crops on non-target organisms. Recent studies, however, show that Bt corn poses “negligible” threat to Monarch butterflies in the field. A collaborative research effort by scientists in the US and in Canada has produced information to develop a formal risk assessment of the impact of Bt corn on Monarch butterfly populations. They concluded that in most commercial hybrids, Bt expression in pollen is low, and laboratory and field studies show no acute toxic effects at any pollen density that would be encountered in the field. 

According to a March 11, 2011 ASTM Newsroom Press Release (#8815), this is an issue that the standards committees recognized, as well as other manufacturers: Due to risk of infection from blood-borne pathogens such as human immunodeficiency virus and hepatitis C, hypodermic needlesticks pose a life-safety risk to healthcare professionals, law enforcement officials, sanitation workers, and others. A new ASTM International standard addresses the unique mechanics of hypodermic needle puncture as related to protective clothing. The ASTM F2878 - 10 Standard Test Method for Protective Clothing Material Resistance to Hypodermic Needle Puncture was developed by Subcommittee on Physical, part of ASTM International Committee F23 on Personal Protective Clothing and Equipment.

Technology resistant materials coursework

technology resistant materials coursework


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