منابع مشابه
Mutagenesis testing program.
Until recently, mutagenicity testing was done on preselected compounds in a manner in which the testing laboratories knew the identity of the substances under test and the "expected" results, i.e., positive for compounds selected because of their carcinogenicity and negative for food additives. There is no completed study in which substances were tested blind using a standardized protocol. Also...
متن کاملPhthalate ester testing in the National Toxicology Program's Environmental Mutagenesis Test Development Program
A number of phthalate esters and related chemicals were tested for mutagenicity in Salmonella typhimurium. The chemicals were tested blind in three laboratories by a preincubation modification of the Ames Salmonella/mammalian microsome test using S-9 prepared from Aroclor-induced rats and Syrian hamsters. All chemicals tested were judged to be nonmutagenic.
متن کاملForensic Testing Program
This test was sent to 245 participants. Each sample set contained a bolt cutter (Item 1) and two padlocks containing questioned toolmarks (Items 2 and 3). Participants were requested to examine these items and report their findings. Data were returned from 202 participants (82% response rate) and are compiled into the following tables: Page 2 Manufacturer's Information 3 Summary Comments 4 Tabl...
متن کاملForensic Testing Program
This test was sent to 173 participants. Each sample pack consisted of a questioned employment offer letter provided by employer Safe Haven Home Insurance (Q1) and a photocopy of the employment offer letter made by the employee at the time it was signed (K1). Participants were requested to analyze the questioned original letter to determine if the employee's contention that the document is not g...
متن کاملQuery-Driven Program Testing
We present a new approach to program testing which enables the programmer to specify test suites in terms of a versatile query language. Our query language subsumes standard coverage criteria ranging from simple basic block coverage all the way to predicate complete coverage and multiple condition coverage, but also facilitates on-the-fly requests for test suites specific to the code structure,...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1977
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.7720253