- ScienceDaily
- 08/3/26 05:00
A six-year study of Amazonian small farmers and their responses to climate change shows the farmers are vulnerable to natural catastrophes and risky land use practices....
A six-year study of Amazonian small farmers and their responses to climate change shows the farmers are vulnerable to natural catastrophes and risky land use practices....
Scientists have made the first global-scale analysis of the processes leading to freshwater fish invasion in river basins. This phenomenon affects most river ecosystems of countries of the Northern hemisphere. However, in the context of economic growth developing countries are now experiencing, their river basins, home to the greater part of freshwater fish biodiversity, are at risk of the same...
A small California aerospace company has just unveiled a new suborbital spaceship that will provide affordable front-seat rides to the edge of space for the millions of people who want to buy a ticket. The company, XCOR Aerospace, of Mojave, CA, announced that its two-seat Lynx suborbital spaceship will carry people or payloads to where they will experience weightlessness and see the stars above...
Chimpanzees make judgments about the actions and dispositions of strangers by observing others' behavior and interactions in different situations. Specifically, chimpanzees show an ability to recognize behavioral traits and make assumptions about the presence or absence of these traits in strangers in similar situations thereafter. Chimpanzees have sophisticated social skills and there is evidence...
TUESDAY 25. MARCH 2008
British Antarctic Survey has captured dramatic images of an Antarctic ice shelf that looks set to be the latest to break out from the Antarctic Peninsula. A large part of the Wilkins Ice Shelf on the Antarctic Peninsula is now supported only by a thin strip of ice hanging between two islands. It is another identifiable impact of climate change on the Antarctic environment....
Low doses of the toxic gas responsible for the unpleasant odor of rotten eggs can safely and reversibly depress both metabolism and aspects of cardiovascular function in mice, producing a suspended-animation-like state. Heart rate and metabolism drop, while blood pressure and oxygen levels are maintained....
Latest Australian research into myopia or shortsightedness reveals that people who wear glasses are not stereotypical geeks or nerds....
Women who have tried to conceive using in vitro fertilization (IVF) methods are painfully aware that timing is of the essence. There are cancelled vacations, too many sick days taken from work, and the necessity to plan everything around "the treatment." In a surprising finding, researchers have discovered that the same pill used to prevent pregnancy can actually help a woman conceive....
Researchers have found that an experimental drug known as SGX393 is effective against Gleevec-resistant chronic myeloid leukemia. New research gives additional therapeutic tools for even more effective and longer control of chronic myeloid leukemia....
Interest in whole-genome research has grown substantially over the past few months. But what are the ethics issues associated with this work? In whole-genome research, participants quickly lose control over access to their personal information, and they run the risk of "genetic profiling."...
A new technique for examining ancient cooking pots has produced the earliest directly dated examples of domesticated corn (maize) being consumed on the South American continent. The discovery shows the spread of maize out of Mexico more than 9,000 years ago occurred much faster than previously believed and provides evidence that corn was likely a vital food crop for villages in tropical Ecuador at...
The 2005 Dietary Guidelines for Americans strongly urge people to engage in regular physical activity and avoid sedentary pastimes. That's because previous research has provided evidence that physical activity and nutrition work together for better health. Scientists now report on how the elderly also can engage in physical activity to improve quality of life....
The advent of effective medications for treating HIV dramatically improved the outlook for both adults and children infected with HIV who had access to treatment, but the optimal timing for starting treatment remains controversial, particularly in children....
Adults with hypertension may be able to lower their weight and their blood pressure by following a weight-loss diet or using the medication orlistat, according to a meta-analysis of previously published studies....
While the "digital divide" may be narrowing in terms of access to the Internet, a significant "digital skills divide" is emerging. Researchers found the higher the socio-economic status, the greater the time spent on the Web and the more sophisticated the search and evaluation skills. Google was the favored search engine by parents in the high socio-economic group....
The 2005 Dietary Guidelines for Americans included --- for the first time --- recommendations that U.S. consumers keep their intake of trans fatty acids as low as possible. The dietary guidelines now recommend consuming less than 10 percent of daily calories from saturated fatty acids; that's 22 grams or less for a 2,000-calorie diet. But a 2007 data analysis shows that about 64 percent of adults...
Peach growers combat several insects that harm their crop, usually using chemical pesticides to do so. Agricultural Research Service scientists are seeking environmentally friendly alternatives. For the peachtree borer, the researchers found a beneficial nematode....
Hepatitis C-related deaths in the United States increased by 123 percent from 1995 through 2004, the most recent year for which data are available. Mortality rates peaked in 2002, then declined slightly overall, while continuing to rise among people 55 to 64 years old....
It turns out ants, like humans, are true farmers. The difference is that ants are farming fungus. Entomologists are providing new insight into the agricultural abilities of ants and how these abilities have evolved throughout time....
A new mathematical model gives scientists a smarter way to learn which cellular processes are key in many diseases and thus find the most effective drug targets. Scientists say the model, now freely available to researchers, should speed the search for effective treatments for cancer, inflammation and other conditions that affect millions of people....
Male infants in developed nations are more likely to die than female infants, a fact that is partially responsible for men's shorter lifespans, reveals a new study. The paper analyzes 15 countries spanning three continents and hundreds of years. It finds that the gender gap in infant mortality was as high as 30 percent at its peak around 1970....
Patients with nonalcoholic fatty liver disease have suboptimal levels of cardiovascular fitness, muscle strength, body composition and physical fitness, according to a new study....
It might be surprising that 40,275 grams of slime, 4,030 ink dots, 3,876 M&Ms, 977 baby diapers, 489 cups of milk and a few electrified pickles can make a difference in the academic lives of adolescent girls, but it's true....
A review of cancer screening studies shows that white women who are obese are less likely than healthy weight women to get the recommended screenings for breast and cervical cancer....
Researchers have identified several soybean varieties that grow well in areas of the Midwest like southern Indiana, US and are resistant to root-knot nematodes, a plant-destroying parasite with a recently confirmed presence in that part of the state....