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Tweaking, or Falsifying?

An investigation at the University of Minnesota concludes that a 2001 paper on stem cells from Catherine Verfaillie's lab, and published in Blood, contained falsified images, reports the Associated Press. The investigation cleared Verfaillie of wrongdoing but says she provided "inadequate training and oversight" to her graduate student, Morayma Reyes. According to Reyes, the panel said she falsified data since she adjusted the brightness and contrast of the images contained in the paper. Reyes adds at the time she did the research, that was standard practice, but the standards have now changed and the panel judged her on the new standards.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.