http://www.sci-news.com/othersciences/materials/high-performing-water-desalination-membranes-09209.html

Biological membranes can achieve remarkably high permeabilities while maintaining ideal selectivities by relying on homogeneous internal structures in the form of membrane proteins. In new research, a team of scientists led by Penn State University and the University of Texas at Austin applied such design strategies to desalination polyamide membranes.

Dr. Enrique Gomez, Dr. Manish Kumar and their colleagues from Iowa State University, Penn State University, the University of Texas at Austin, DuPont Water Solutions, and Dow Chemical Co. found that creating a uniform membrane density down to the nanoscale of billionths of a meter is crucial for maximizing the performance of reverse-osmosis, water-filtration membranes.

Why you still need to wear a mask after getting COVID-19 vaccine Getting the vaccine does not mean you can ignore precautions. ABC News ABC News

As the promise of a COVID-19 vaccine is fulfilled amid the rollout of the Pfizer/BioNTech and Moderna vaccines, the need to continue wearing masks, washing your hands and maintaining social distancing remains mission critical to protecting lives.

Years of research laid groundwork for speedy COVID-19 shots How could scientists race out COVID-19 vaccines so fast without cutting corners? A head start helped -- over a decade of behind-the-scenes research that had new vaccine technology poised for a... AP NEWS

How could scientists race out COVID-19 vaccines so fast without cutting corners? A head start helped -- over a decade of behind-the-scenes research that had new vaccine technology poised for a challenge just as the coronavirus erupted.

The COVID-19 pandemic has placed enormous strain on countries around the world, exposing long-standing gaps in public health and exacerbating chronic inequities. Although research and analyses have attempted to draw important lessons on how to strengthen pandemic preparedness and response, few have examined the effect that fragmented governance for health has had on effectively mitigating the crisis.

By assessing the ability of health systems to manage COVID-19 from the perspective of two key approaches to global health policy—global health security and universal health coverage—important lessons can be drawn for how to align varied priorities and objectives in strengthening health systems.