The production, dissolution, and burial of calcium carbonate (CaCO 3) are key components of the oceanic carbon cycle, as the carbonate ion concentration of seawater controls its buffering capacity to ...

A Biometric Study of Human Basal Metabolism Note: 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 ...

Proof of the Ergodic Theorem Two such sets S λ * belonging to different λ ’s are evidently distinct except for a set of measure 0. Hence there can exist only a numerable set S λ i * (i = 1, 2,) of ...

STABLE BUNDLES AND UNITARY BUNDLES ON A COMPACT RIEMANN SURFACE ...

The PNAS Editorial Board is made up of NAS members who are active scientists and experts in their fields. On submission, your paper is assigned to an Editorial Board member in one of the 31 NAS ...

PNAS depends, in part, on the payment of article processing charges (APCs) to finance its operations. Papers are accepted or rejected for publication and published solely on the basis of merit. For ...

As these chemicals swirl down drains, or leach out of trash at the dump, they contaminate soil, groundwater, and, ultimately, ...

Aerial view of a lake affected by eutrophication, where phosphorus loss from agricultural and human activities has fueled extensive algal blooms. Anthropogenic phosphorus cycle and sustainability ...

Foraging honey bees (Apis mellifera) returning to the hive can perform waggle dances to communicate the direction and distance of a food source to nestmates. The waggle dance is considered a one-way ...

Retraction for “Primed 3D injectable microniches enabling low-dosage cell therapy for critical limb ischemia,” by Yaqian Li, Wei Liu, Fei Liu, Yang Zeng, Simin Zuo, Siyu Feng, Chunxiao Qi, Bingjie ...

This study identifies dermcidin, an antimicrobial peptide previously found in sweat, as a key factor in innate resistance to influenza symptoms. We demonstrate that dermcidin possesses antiviral ...

Note: 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 following publication. Citation ...