The ability to learn and form memories allows animals to adapt their behavior based on previous experiences. Associative learning, the process through which organisms learn about the relationship ...

At low temperature (T) and high pressure (P), gas molecules can be held in ice cages to form crystalline molecular compounds that may have application for energy storage. We synthesized a hydrogen ...

The theory of island biogeography has been the central tenet of conservation biology for several decades, a tenet in which continental landscapes are viewed islands of suitable habitat patches ...

Rapid pathogen detection is crucial for effective disease management, particularly in bloodstream infections. Current molecular diagnostics often require nucleic acid preamplification, adding time and ...

Efforts to anticipate and adapt to future climate can benefit from historical experiences. We examine agroclimatic conditions over the past 50 y fo ...

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans ...

A Biometric Study of Human Basal MetabolismNutrition Laboratory and Station for Experimental Evolution, Carnegie Institution of Washington ...

By using titin as a model system, we have demonstrated that fluorescence quenching can be used to study protein folding at the single molecule le ...

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans ...

On the Theory of Dynamic ProgrammingNote: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear immediately ...

Extracellular redox-active compounds, flavins and other quinones, have been hypothesized to play a major role in the delivery of electrons from cel ...

Feedbacks from terrestrial ecosystems to atmospheric CO 2 concentrations contribute the second-largest uncertainty to projections of future climate. These feedbacks, acting over huge regions and long ...