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Updated: 3 hours 23 min ago
A new digital resource brings together centuries of cultural knowledge for the first time, showing that networks of trails over snow and sea ice, seemingly unconnected to the untrained eye, in fact span a continent – and that the Inuit have long-occupied one of the most resource-rich and contested areas on the planet.
Venom variation in closely related snake species has been the focus of a recent study. The research team assessed the venom composition of six related viperid snakes, examining the differences in gene and protein expression that influence venom content. The research also assessed how these changes in venom composition impacted upon venom-induced haemorrhage and coagulation pathologies, and how these changes can adversely affect antivenoms used to treat snakebite.
As football teams and their hoards of fans head for Brazil, sustainability, the environmental buzzword of the day, is perhaps not at the top of their thoughts. But, sustainability is an important paradigm that does not apply only to conservation and preservation but also applies to the concept of sustainable tourism. Without becoming sustainable, many tourist destinations fail to thrive and often perish, according to a new research article.
The FIFA World Cup starts next Thursday in Brazil. When you, as a soccer fan, join in the celebrations because your favorite team wins or are extremely crestfallen at a defeat then the so-called mirror neurons are in play.
In search of the answer to why do we sleep, researcher have now revealed that chronic sleep loss can cause certain neurotoxic molecules, which normally circulate in the blood, to be transported to the central nervous system and interfere with the function of neurons. The longer the insomnia, the more junctions of cerebral blood vessels begin to degrade.
About one percent of adults report they have experienced headaches associated with sexual activity, and that such headaches can be severe. But the actual incidence is almost certainly higher, according to a neurologist and headache specialist. "Many people who experience headaches during sexual activity are too embarrassed to tell their physicians, and doctors often don't ask," he said.
Researchers are zeroing in on a promising new approach to killing off cancer cells in patients with leukemia. Researchers have found that cancer cells decide whether to live or die after a short period of intense exposure to targeted therapy, opposing the current requirement for continuous treatment.
When women are choosing a contraceptive, health care providers should be aware that the things they want to discuss may differ from what women want to hear, according to a survey. Most of the information women receive about contraceptives focuses heavily on the effectiveness in preventing pregnancy, but this information was ranked fifth in importance by women, according to the study.
Focused ion beam-scanning electron microscopy (FIB-SEM) has been used in both materials science and in the study of animal tissue, but has not previously been used in plant imaging. Researchers now have modified existing FIB-SEM protocols and optimized these for plant tissue and cellular studies, shedding new light on plant cell architecture.
There's much to learn from the recent release of unprecedented amounts of data from the nation's second largest health insurer, Medicare, but only if interpreted cautiously, write two doctors.
Men who keep a cell phone in their pant pocket could be inadvertently damaging their chances of becoming a father, according to a new study. Previous research has suggested that radio-frequency electromagnetic radiation (RF-EMR) emitted by the devices can have a detrimental effect on male fertility. Most of the global adult population own mobile phones, and around 14% of couples in high and middle income countries have difficulty conceiving.
Should US women be screened for cervical cancer with Pap tests, HPV tests or both? According to researchers, while the merits of screening tests and screening intervals warrant further discussion, they firmly believe that increasing the number of women who participate in cancer screenings and ensuring that women are not lost to follow-up with lengthened screening intervals is more important than the choice of test to decrease rates of cervical cancer.
A daily supplement of an extract found in tomatoes may improve the function of blood vessels in patients with cardiovascular disease, according to new research. The incidence of cardiovascular is notably where a 'Mediterranean diet' consisting of a larger consumption of fruit, vegetables and olive oil predominates. Recent dietary studies suggest that this diet reduces the incidence of events related to the disease, including heart attack and stroke, in patients at high cardiovascular risk, or those who have previously had the disease.
Up to 40 percent of lung cancer patients do not respond to a targeted therapy designed to block tumor growth -- a puzzling clinical setback that researchers have long tried to solve. Now, scientists have discovered why that intrinsic resistance occurs -- and they pinpoint a drug they say could potentially reverse it.
Pathway between gut, liver regulates bone mass: Biological process behind role of vitamin B12 in bone formation unravelled
A previously unknown biological process involving vitamin B12 and taurine that regulates the production of new bone cells has been uncovered by researchers. This pathway could be a potential new target for osteoporosis treatment. Through the study, researchers found that bone mass was severely reduced at eight weeks of age in the offspring of mice with vitamin B12 deficiency. Giving the mother a single injection of vitamin B12 during pregnancy was enough to prevent stunted growth and the onset of osteoporosis in the offspring.
With more people moving into cities, architects need tools to make good decisions about green roofs. An architectural researcher said with weather extremes becoming unpredictable, vegetated roofs build resilience into a changing world.
The mineral micronutrient content of four types of grain legumes has been examined in a new study. Grain legumes are often overlooked as valuable sources of micronutrients, such as zinc and potassium. Diets that do not provide adequate amounts of micronutrients lead to a variety of diseases that affect most parts of the human body. One researcher notes, "Iron deficiency is the most common, followed by zinc, carotenoids, and folate."
Humans and corals are about as different from one another as living creatures get, but a new finding reveals that in one important way, they are more similar than anyone ever realized. A biologist has discovered they share the same biomechanical pathway responsible for triggering cellular self-destruction. The finding has implications for biologists, conservationists and medical researchers.
Statins in older men is associated with less physical activity, a significant issue for a population that's already sedentary, concludes one of the longest studies of its type. The findings raise concerns about a decline in much-needed physical activity among men who take some of the most widely prescribed medications in the world.
Costs for a lifetime of support for each individual with Autism Spectrum Disorder (ASD) may reach $2.4 million, according to a new study. In the study, the team found that costs for a person with ASD and an intellectual disability reaches $2.4 million in the United States and $2.2 million in the United Kingdom; costs for those who have ASD without an intellectual disability are estimated to cost $1.4 million in both the U.S. and the U.K.