News by Subject Chemistry & Physics

A new Florida State University College of Medicine study in mice produced results that suggest nicotine exposure in men could lead to cognitive deficits in their children and grandchildren. Further studies will be required to know if the same outcomes seen in mice would apply to humans.

Since 2013, gifts and payments to doctors by pharmaceutical and medical device companies have been publicly reported. Some medical centers, employers, and states have banned or restricted detailing visits, physician payments or gifts. In order to better understand the effects of these changes, a team of researchers from Harvard Medical School, The Dartmouth Institute for Health Policy and Clinical Practice, and the American Board of Internal Medicine conducted a national survey of internal medicine doctors.

Feature describes unexpected discovery of a role the process that seeds magnetic fields plays in mediating a phenomenon that occurs throughout the universe and can disrupt cell phone service and knock out power grids on Earth.

Microorganisms often assemble natural products similar to industrial assembly lines. Certain enzymes, non-ribosomal peptide synthetases (NRPS) play a key role in this process. Biotechnologists at Goethe University have now been able to discover how these enzymes interact with each other. This brings them one step closer to their goal of engineering the production of such peptide natural products.

Like fingerprints, no 3D printer is exactly the same. That's the takeaway from a new University at Buffalo-led study that describes what's believed to be the first accurate method for tracing a 3D-printed object to the machine it came from. The advancement could help law enforcement and intelligence agencies track the origin of 3D-printed guns, counterfeit products and other goods.