The Proceedings of the National Academy of Sciences of the United States of America, usually referred to as PNAS, is the official journal of the United States National Academy of Sciences (NAS). PNAS is an important scientific journal that printed its first issue in 1915 and continues to publish highly cited research reports, commentaries, reviews, perspectives, feature articles, profiles, letters to the editor, and actions of the Academy. Coverage in PNAS broadly spans the biological, physical, and social sciences. Although most of the papers published in the journal are in the biomedical sciences, PNAS recruits papers and publishes special features in the physical and social sciences and in mathematics. PNAS is published weekly in print, and daily online in PNAS Early Edition. PNAS was established by NAS in 1914, with its first issue published in 1915. The NAS itself had been founded in 1863 as a private institution, but chartered by the US Congress, with the goal to "investigate, examine, experiment, and report upon any subject of science or art." By 1914, the Academy was well established.
Evidence mounts for quantum criticality theory
A new study by a team of physicists at Rice University, Zhejiang University, Los Alamos National Laboratory, Florida State University and the Max Planck Institute adds to the growing body of evidence supporting ...
The clime's speech: Data analysis supports prediction that human language is influenced by environmental factors
Scientists reveal global patterns of specialized feeding in insect herbivores
Insects are picky eaters, and not the voracious eat-everything-in-sight bingers that devour all the plants in your garden.
Researchers identify protein capable of neutralizing antibiotic-resistant bacterial cells
Antibiotic-resistant infections are on the rise, foiling efforts to reduce death rates in developing countries where uncontrolled use of antibiotics and poor sanitation run amok. The epidemic of "superbugs," ...
Long dry spell doomed Mexican city 1,000 years ago
Archaeologists continue to debate the reasons for the collapse of many Central American cities and states, from Teotihuacan in Mexico to the Yucatan Maya, and climate change is considered one of the major ...
Picking up on the smell of evolution
UA researchers have discovered some of the changes in genes, physiology and behavior that enable a species to drastically change its lifestyle in the course of evolution.
Quantum dots combined with antibodies as a method for studying cells in their native environment
Researchers identify natural plant compounds that work against insects
Each year millions of deaths result from diseases transmitted by insects. Insects are also responsible for major economic losses, worth billions of dollars annually, by damaging crops and stored agricultural products.
Analysis of skull fractures in medieval Denmark reveals increased risk of death later on in life
Climatic history study suggests pre-Columbian Mesoamerican society's demise was more complex than just weather
3-D enzyme model provides new tool for anti-inflammatory drug development
Phospholipase A2 (PLA2) enzymes are known to play a role in many inflammatory diseases, including asthma, arthritis and atherosclerosis. It then stands to reason that PLA2 inhibitors could represent a new ...
Genetic safety switches could help curb potential bioterror risks
The potential threat of bioterrorism using man-made biological organisms could be reduced, thanks to a new method developed by scientists.
Physicist suggests new experiments could make or break axion as dark matter theory
The elephant poaching business in numbers
From the pittance paid to local poachers to a multi-billion dollar industry, here are some of the key numbers related to Africa's endangered elephants:
Team discovers evolutionary mechanism that allows bacteria to resist antibiotics
In research published in Proceedings of the National Academy of Sciences, assistant professor of biochemistry and molecular biology at Saint Louis University Mee-Ngan F. Yap, Ph.D., discovered new inform ...