This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Urea is a small molecule formed as proteins ...

The ulcer-causing bacterium Helicobacter pylori thrives where most other living things get chemically minced into bits–the acidic environment of the human stomach. Scientists are divided on exactly ...

This is a preview. Log in through your library . Abstract Previous (unpublished) studies of the vegetative and conidial development of several fungi of the genus Aspergillus grown on different ...