During the past century, chemists have sought economical methods of fixing atmospheric
dinitrogen for use as fertilizer, explosives, and other chemicals. Despite the simplicity of the …

Morbidity and mortality have declined only modestly in patients with clinical acute lung injury
(ALI) and acute respiratory distress syndrome (ARDS), despite extensive research into the …

As a result of many years of research, the intricate cellular mechanisms of burn injury are
slowly becoming clear. Yet, knowledge of these cellular mechanisms and a multitude of …

Major advances in our understanding of the universe have historically arisen from dramatic
improvements in our ability to “see.” We have developed progressively larger telescopes …

Location awareness is an important capability for mobile computing. Yet inexpensive,
pervasive positioning—a requirement for wide-scale adoption of location-aware computing …

A high-resolution crystallographic analysis of the nitrogenase MoFe-protein reveals a
previously unrecognized ligand coordinated to six iron atoms in the center of the catalytically …

An epidemiologic study of clinical signs and symptoms of temporomandibular disorders
(TMD) was conducted with a probability sample of adults enrolled in a major health …

OBJECTIVE—The purpose of this study was to evaluate intraepidermal nerve fiber density
(IENFD) as a sensitive measure of neuropathy change in patients with neuropathy …

Background Symptomatic relief is the primary goal of percutaneous coronary intervention
(PCI) in stable angina and is commonly observed clinically. However, there is no evidence …

Background Early studies suggest that radiofrequency-based renal denervation reduces
blood pressure in patients with moderate hypertension. We investigated whether an …