PNAS

The ergodicity question when imaging DNA conformation using liquid cell electron microscopy

Assessing the ergodicity of graphene liquid cell electron microscope measurements, we report that loop states of circular DNA interconvert reversibly and that loop numbers follow the Boltzmann ...
PNAS

FIXED-POINT THEOREMS FOR NONCOMPACT MAPPINGS IN HILBERT SPACE

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 ...
PNAS

THE KINETICS OF FORMATION OF NATIVE RIBONUCLEASE DURING OXIDATION OF THE REDUCED POLYPEPTIDE CHAIN

Emotions coordinate our behavior and physiological states during survival-salient events and pleasurable interactions. Even though we are often consciously aware of our current emotional state, such ...
PNAS

NONEXPANSIVE NONLINEAR OPERATORS IN A BANACH SPACE

NONEXPANSIVE NONLINEAR OPERATORS IN A BANACH SPACE*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 ...
PNAS

The Principle of Microscopic Reversibility

The Principle of Microscopic ReversibilityNote: 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 ...
PNAS

Four decades of Antarctic Ice Sheet mass balance from 1979–2017

In the west, the glaciers feeding Wordie Ice Shelf (1.3-cm SLE) lost 1 to 2 Gt/y in 1979–2003, increasing to 8 Gt/y in 2017, with speed-up detected over the entire drainage. The mass loss for Wilkins ...
PNAS

THE STRUCTURE OF THE PHENYLALANINE-HYDROXYLATION COFACTOR

THE STRUCTURE OF THE PHENYLALANINE-HYDROXYLATION COFACTORNote: 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 ...