Last month a committee of scientists and ethicists convened by the National Academy of Science proposed guidelines for human embryonic stem cell research without major dissent.

And an international panel of scientists convened by President Mbeki disbanded this week without making any proclamations on the question of what causes AIDS.

Two years ago, an independent panel of scientists convened by the Institute of Medicine reviewed the medical literature on silicone implants and concluded that they were not linked to any major disease.

Last fall, a panel of scientists convened by the United Nations to advise the world's governments concluded for the first time that greenhouse gases like carbon dioxide are probably responsible, at least in part, for a changing global climate.

Today, a panel of scientists convened by the National Research Council warned NASA that although such an occurrence was unlikely, it was possible.

Since this summertime depletion of the ozone shield was not known until now, predicted increases in skin cancers and crop damage are too low, an international panel of scientists convened by the United Nations said here today.

A committee of scientists convened by the National Marine Fisheries service to analyze salmon recovery efforts has criticized federal policy on Northwest salmon harvests, calling the fishing limits too high.

A conference of scientists convened by the National Institutes of Health on AIDS prevention stated unequivocally last week that there is no doubt that needle-exchange programs work.

The finding has been cited in a report to be released soon by the Intergovernmental Panel on Climate Change, the international group of scientists convened by the United Nations to advise the climate negotiations.

An independent panel of 13 scientists convened by the Institute of Medicine at the request of Congress has concluded that silicone breast implants do not cause any major diseases.