Stained and broken bones from 2,500 years ago have now provided some clue to the practices of ancient Mesoamerican cannibals, according to new research. The bones of 18 people discovered at a site just outside Mexico City have provided clues about how cannibals prepared their victims for meals.
Bacteria resistant to antibiotics are on the rise. There are different explanations for how...
About 90 percent of advanced prostate cancers have particular genetic mutations that can provide...
Some major trucking companies are turning to natural gas to fuel their fleets— and to earn "green" credit among customers. But celebrating lower emissions could be premature.
Contrary to public perception and horrific cases that make headlines, serious mental problems are declining among the nation's youth, and there has been a big rise in how many are getting help, a new study finds. The study is mostly good news: more children and teens are taking mental health medicines than ever before, but more also are getting therapy, not just pills.
Chamomile is one of the oldest, most-widely used and well-documented medicinal plants in the world and has been recommended for a variety of healing applications. Now, research has found that drinking chamomile tea was associated with a decreased risk of death from all causes in Mexican-American women over 65.
A new study has found that the toxin in a widely used genetically modified (GM) crop is having little impact on the crop pest called corn earworm– which is consistent with predictions made almost 20 years ago that had been largely ignored. The study may be a signal to pay closer attention to warning signs about the development of resistance in agricultural pests to GM crops.
An Oregon doctor is researching a non-surgical, permanent contraceptive method for women in developing countries, with some funding from the Gates Foundation. The work is being done with an eye toward curbing overpopulation, and to improve quality of life in impoverished countries, they said.
Typically, when someone chooses to donate their body to science, it’s as a cadaver. While cadavers are great learning tools, there’s something to be said for having access to living, breathing humans. Now, a group of scientists has discovered a way to circumvent the “you must be dead first” rule.
A new study in animals suggests that skipping meals sets off a series of metabolic miscues that can result in abdominal weight gain. In the study, mice that ate all of their food as a single meal and fasted the rest of the day developed insulin resistance in their livers. When the liver doesn’t respond to insulin signals telling it to stop producing glucose, that extra sugar in the blood is stored as fat.
A new step has been made toward bendable electronics. Scientists have developed the first light-emitting, transparent and flexible paper out of environmentally friendly materials via a simple, suction-filtration method.
Maintaining a healthy and diverse soil community can buffer natural ecosystems against the damaging impacts of global warming. In a long-term study, researchers showed that small soil animals can limit the effects of climate change, which would otherwise stimulate the loss of carbon from the soil into the atmosphere.
Machines mimicking a human's sense of taste are going on a beer-tasting binge. Despite being called electronic tongues, these devices aren't party robots, pouring beer onto wagging, mechanical tongues— they accurately distinguished between four styles of lager beer 100 percent of the time.
A class of FDA-approved cancer drugs may be able to prevent problems with brain cell development associated with disorders including Down syndrome and Fragile X syndrome, researchers have found. They showed that giving the leukemia drugs nilotinib or bafetinib to fly larvae with the equivalent of Fragile X prevented the wild overgrowth of neuron endings associated with the disorder.
With the help of a computer program called "Rosetta," researchers have "redesigned" an antibody that has increased potency and can neutralize more strains of the AIDS-causing human immunodeficiency virus (HIV) than can any known natural antibody. The find suggests that computer-redesigned antibodies may speed the search for an effective therapy or vaccine for a virus that so far has eluded all attempts to eradicate it.
The federal government hopes to reverse America's declining honeybee and monarch butterfly populations by making more federal land bee-friendly, spending more money on research and considering the use of less pesticides.
Many agree that the Big Apple has the best bagels in the world, but many disagree on why. Dive into the chemistry of these tasty breakfast treats with the help of a top chef.
Scientists have solved a long-standing mystery about methanogens, unique microorganisms that transform electricity and carbon dioxide into methane. They have demonstrated how methanogens obtain electrons from solid surfaces. The discovery could help scientists design electrodes for microbial "factories" that produce methane gas and other compounds sustainably.
Chemists have helped develop a family of new chemical catalysts that are expected to lower the cost and boost the sustainability of the production of chemical compounds used by a number of industries.
In an Indiana lab, a chamber that mimics the temperature fluctuations, solar radiation and atmospheric pressure of Mars is providing a sample environment of what pioneer organisms might help create a hospitable ecosystem– and human habitation– on the Red Planet.
Nanoengineers have developed a gel filled with toxin-absorbing nanosponges that could lead to an effective treatment for skin and wound infections caused by MRSA, an antibiotic-resistant bacteria. This "nanosponge-hydrogel" minimized the growth of skin lesions on mice infected with MRSA— without the use of antibiotics.
Moonshiners and home-brewers have long used yeast to convert sugar into alcohol. Those methods could also be adapted for something more significant: the production of drugs including opiates, antibiotics and anti-cancer therapeutics. According to new studies yeast can be engineered to convert sugar to alkaloids— plant-derived compounds such as codeine and morphine, naturally produced in the opium poppy.
A tiny microfluidic chip can capture circulating clusters of tumor cells, researchers said. The find could provide important new clues about how cancer spreads– and could even be a “breakthrough technology,” they said.
Scientists in South Korea have developed a new way to store energy that also offers a solution to a growing environmental problem. The research team successfully converted used cigarette butts into a high performing material that could be integrated into computers, handheld devices, electric vehicles and wind turbines to store energy.
A hazardous-waste incinerator in Ohio released dangerous toxins into the air over the past four years, exposing those nearby to chemicals that can cause cancer, miscarriages and early death. The EPA released a 20-page report and found that the Heritage Thermal Services Incinerator in East Liverpool in Columbiana County emitted gases that contained high levels of toxic chemicals 195 times.
Made from state-of-the-art silicon transistors, an ultra-low power sensor enables real-time scanning of the contents of liquids such as perspiration. Compatible with advanced electronics, this technology boasts exceptional accuracy– enough to manufacture mobile sensors that monitor health.
The cross-ocean panic that accompanied the spread of Ebola in Western Africa was fueled by the unthinkable: the worst-case scenario that the dreaded virus could go airborne. No need to worry, according to researchers, who have analyzed decades of the virus’s known evolution.
Colombia, which has battled against its cocaine economy by aerial spraying of an herbicide over decades, announced it would stop using the chemical compound. The announcement comes after multiple agencies and officials called for a stop to the usage of glyphosate, now labeled a probable carcinogen by the World Health Organization.
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