Peru
Results of a new study add evidence that climate swings in the northern hemisphere over the past 12,000 years have been tightly linked to changes in the tropics.
DURHAM, N.H. -- A new study that reports precise ages for glacial moraines in southern Peru links climate swings in the tropics to those of Europe and North America during the Little Ice Age approximately 150 to 350 years ago.
Processes and policies governing the reuse and recycling of electronic products need to be standardized worldwide to stem and reverse the growing problem of illegal and harmful e-waste processing practices in developing countries, according to experts behind the world's first international e-waste academy.
Competitors copying songs is an issue that every great singer must face, but now it has been discovered that even birds have to deal with cover artists. Research, published today in Evolution, reveals how some bird species have evolved to sing the same tune as their rivals in order to compete effectively.
After more than a decade of inquiry, a Princeton-led team of scientists has turned the tables on a long-standing controversy to re-establish an old truth about nitrogen mixing in the oceans.
Travelers to the neotropics -- the tropical lands of the Americas -- might be forgiven for thinking that all of the colorful insects flittering over sunny puddles or among dense forest understory are butterflies. In fact, many are not. Some are moths that have reinvented themselves as butterflies, converging on the daytime niche typically dominated by their less hairy relatives.
KABUL, AFGHANISTAN (31 July 2009) -Scientists are racing to arm Afghanistan against a new invader-a deadly, airborne wheat rust disease that threatens wheat production and food security in this war-torn nation and the region that stretches east across neighboring Pakistan and into India.
COLUMBIA, Mo. -- The party was over more than 4,000 years ago, but the remnants still remain in the gourds and squashes that served as dishware. For the first time, University of Missouri researchers have studied the residues from gourds and squash artifacts that date back to 2200 B.C. and recovered starch grains from manioc, potato, chili pepper, arrowroot and algarrobo.
Experts estimate that over 24 million people worldwide suffer from dementia, and many of these people live in low- and middle-income countries. Recently, there has been growing interest in whether dietary factors, particularly oily fish and meat, might influence the onset and/or severity of dementia.
Two abrupt and drastic climate events, 700 years apart and more than 45 centuries ago, are teasing scientists who are now trying to use ancient records to predict future world climate.
The events - one, a massive, long-lived drought believed to have dried large portions of Africa and Asia, and the other, a rapid cooling that accelerated the growth of tropical glaciers - left signals in ice core
[Mechelen Belgium, June 3, 2009] ?Interim results from an ongoing phase 2, randomized, placebo-controlled trial of the investigational drug TMC207 for the treatment of multidrug-resistant tuberculosis (MDR-TB) were published in the New England Journal of Medicine today. TMC207 is being developed by Tibotec BVBA.
MENLO PARK, Calif. -- June 2 , 2009 -- SRI International, an independent nonprofit research institute, announced today that early scientific results are now available from the Advanced Modular Incoherent Scatter Radar (AMISR), a modular, transportable radar system funded by the National Science Foundation (NSF) that has recently completed the first two years of operation .
Having worked for 25 years at fragile archaeological sites in Peru, UCLA archaeologist Charles "Chip" Stanish held his breath when the online auction house eBay launched more than a decade ago.
Compound Found in Plant Products May Offer New Treatment for Malaria
In a new study researchers from France suggest that ellagic acid, a compound found in plant products, may be effective against malaria and ultimately lead to new forms of treatment. They report their findings in the March 2009 issue of the journal Antimicrobial Agents and Chemotherapy.
A simple stroll after a full day of field research near a high Andean glacier in Peru led glaciologist Lonnie Thompson to discover a bed of previously hidden plants that date back at least 50,000 years. And while that discovery is novel enough to please any scientist, it's the implication that those perfectly preserved plants may suggest that really excites him. Thompson, a professor of geological sciences at Ohio State University and a world-class glaciologist, has made nearly annual pilgrimages to Peru's Quelccaya ice cap to monitor its slow demise, a probably victim of recent global climate change.
