Search Results for: stem cell

“Super-surgeon” who created artificial tracheas facing new misconduct allegations

A one-time media favorite is being accused of serious misconduct in three cases where he inserted artificial windpipes into patients and treated them with stem cells. Two of the patients have died; one survives, but needs her airway cleaned every four hours by hospital staff to keep her alive. A little over two years ago, thoracic … Continue reading “Super-surgeon” who created artificial tracheas facing new misconduct allegations

“I kind of like that about science:” Harvard diabetes breakthrough muddied by two new papers

Harvard stem cell researcher Doug Melton got a lot of press last year for research on a hormone he named betatrophin, after its supposed ability to increase production of beta cells, which regulate insulin. Now, the conclusions from that paper, which has been cited 59 times, according to Thomson Scientific’s Web of Knowledge, have been called … Continue reading “I kind of like that about science:” Harvard diabetes breakthrough muddied by two new papers

PubPeer Selections: Authors respond to critiques; motorcycling meets photonics; soda and aging

This week we learned that Fazlul Sarkar, who is suing PubPeer commenters, claiming he lost a job offer at the University of Mississippi because of their critiques, declined an opportunity to respond to said comments. Here’s another installment of PubPeer Selections:

Weekend reads: Senator loses degree for plagiarism; bad colitis poetry; fraud on the big screen

The week at Retraction Watch featured papers by a fake author with a brilliant if profane name, and the unmasking of fraudster Diederik Stapel as a sock puppet. Here’s what was happening elsewhere:

Nature, facing “considerable rise” in retractions, blames lawyers for opaque and delayed notices

Nature, as we and others have noticed, has had what Paul Knoepfler referred to as a “torrent” of retractions in the past two years. That torrent — 13 research papers — has prompted a welcome and soul-searching editorial, as it did in 2010 when the journal had what it called an “unusually large number” of … Continue reading Nature, facing “considerable rise” in retractions, blames lawyers for opaque and delayed notices

Scientist threatening to sue PubPeer claims he lost a job offer because of comments

Last month, PubPeer announced that a scientist had threatened to sue the site for defamation. At the time, all PubPeer would say was that the “prospective plaintiff” is a US researcher” who was “aggrieved at the treatment his papers are getting on our site.” Today, PubPeer revealed the that the prospective plaintiff was Fazlul Sarkar, … Continue reading Scientist threatening to sue PubPeer claims he lost a job offer because of comments

Weekend reads: Reading Nature and Science “very unpleasant,” how to spot fake journals

The week at Retraction Watch featured revelations about the backstory of an expression of concern, and Office of Research Integrity findings in a case that had its beginnings in Retraction Watch comments. Here’s what was happening elsewhere:

PubPeer Selections: Boosting memory in Science, extending lifespan in Nature, quantum anesthesia in PNAS

As Retraction Watch readers probably know, we’re big fans of PubPeer, the post-publication peer review site that allows comments on papers. Discussions there have led to a number of corrections and retractions, and even more importantly, authors are starting to respond to clarify results, acknowledge errors, or otherwise advance knowledge. After all, as we often … Continue reading PubPeer Selections: Boosting memory in Science, extending lifespan in Nature, quantum anesthesia in PNAS