Importance US health care spending has continued to increase and now accounts for 18%
of the US economy, although little is known about how spending on each health condition …

Exosomes are lipid nanovesicles released following fusion of the endosoma limiting membrane
with the plasma membrane; however, their fate in lymphoid organs after their release …

Background The evidence base for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)
is nascent. We sought to characterize SARS-CoV-2 transmission within US …

Virus shedding in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can
occur before onset of symptoms; less is known about symptom progression or infectiousness …

With accelerating trends in miniaturization of semiconductor devices, techniques for energy
harvesting become increasingly important, especially in wearable technologies and sensors …

Background An ongoing outbreak of lung injury associated with e-cigarettes or vaping (also
known as E-VALI or VALI) started in March, 2019, in the USA. The cause, diagnosis, …

Exosomes are lipid-bound nanovesicles formed by inward budding of the endosomal
membrane and released following fusion of the endosomal limiting membrane with the plasma …

Many biological interfaces provide low friction aqueous lubrication through the generation
and maintenance of a high water content polymeric surface gel. The lubricity of such gels is …

The sliding interfaces found in the body—within the eyes, the digestive system, and the
articulating joints, for example—are soft and permeable yet extremely robust, possessing low …

The expansion of the No Child Left Behind Act to include science standards and assessments
is likely to refocus states’ attention on science teaching and learning. Requiring teachers …