Scientists have reported that an experimental vaccine targeting one of the most common genetic drivers of pancreatic cancer, called mutant KRAS, is safe and generated a durable immune responses aimed at preventing the cancer.
Knocking on wood is a common superstition in Western culture, mostly used to prevent bad luck after talking about good fortune, but sometimes to reverse bad fortune or undo a "jinx."
Other cultures maintain similar practices, like spitting or throwing salt, after someone has tempted fate. Even people who aren't superstitious often participate in these practices. And since this baseball playoffs start today, don't even get one of them going about their crazy superstitions and rituals.
Because an uninterrupted sequence of fossilized pollen from flowers begins in the Early Cretaceous, approximately 140 million years ago, it is generally assumed that flowering plants first evolved around that time.
A new study documents flowering plant-like pollen that is 100 million years older, implying that flowering plants may have originated in the Early Triassic (between 252 to 247 million years ago) or even earlier. Flowering plants evolved from extinct plants related to conifers, ginkgos, cycads, and seed ferns.
In Antarctica's Vestfold Hills, Deep Lake has been isolated from the ocean for the last 3,500 years ago, a result of Antarctic continent rising that has left a saltwater ecosystem that remains liquid, even in extreme cold.
Concerns about the negative effects of mercury on fetal development have led to
the US National Research Council
warning against eating too much fish during pregnancy, but those guidelines may need to be reviewed.
New research instead found that fish accounts for only seven percent of mercury levels in the human body. Further, an analysis of 103 food and drink items consumed by 4,484 women during pregnancy found that the 103 items together accounted for less than 17 percent of total mercury levels in the body.
Disrupted sleep patterns have been linked to autism but the quality of the evidence accumulated to date has often been compromised by small sample size, lack of agreed definitions, and poor comparability of study participants.
Some data also suggest that production of the sleep hormone melatonin may be impaired in some children with autistic spectrum disorders, which may explain disturbed sleep patterns, say the authors of a new paper.
But it's unclear just what impact this shortened sleep pattern may have, they acknowledge, though other researchers have suggested that sleep loss may have impact on neuronal development.
Fiber-optic sensors running along a 36-km stretch of high-speed commuter railroad lines connecting Hong Kong to mainland China have taken more than 10 million measurements over the past few years, a demonstration that the system can help safeguard commuter trains and freight cars against accidents.
Attuned to the contact between trains and tracks, the sensors can detect potential problems like excessive vibrations, mechanical defects or speed and temperature anomalies. The system is wired to warn train operators immediately of such problems so that they can avoid derailments or other accidents.
Researchers have created the first comprehensive roadmap of the protein interactions that enable cells in the pancreas to produce, store and secrete the hormone insulin. The finding makes possible a deeper scientific understanding of the insulin secretion process—and how it fails in insulin disorders such as type 2 diabetes.
Geologists and geophysicists have discovered traces of large ice sheets from the Pleistocene on a seamount off the north-eastern coast of Russia, confirming for the first time that within the past 800,000 years in the course of ice ages, ice sheets more than a kilometer thick also formed in the Arctic Ocean.
It's the 21st century for honoring the dead too - and among other "virtual tombstones", people are doing things like blending cremated remains into tattoos.
"Virtual tombstones" are also being created online, and mourners are displaying "Rest in Peace" car decals or T-shirts. These unconventional ideas are growing in popularity, according to Baylor University assistant professor of religion Candi Cann, who made a presentation at the recent international conference, "Death, Dying and Disposal," of the Association for the Study of Death and Society.
Propylene, a chemical used to make food-storage containers, car bumpers and other consumer products, has been detected on Saturn's moon Titan, the first definitive detection of the plastic ingredient on any moon or planet besides ours.
The propylene was identified in Titan's lower atmosphere by Cassini's Composite Infrared Spectrometer (CIRS), which measures the infrared light emitted from Saturn and its moons in much the same way our hands feel the warmth of a fire.
CIRS can identify a particular gas glowing in the lower layers of the atmosphere from its unique thermal fingerprint. The challenge is to isolate this one signature from the signals of all other gases around it.
Most research has focused on the amount of global warming resulting from increased greenhouse gas concentrations but there has been relatively little study of the pace of the change following these increases.
A new paper concludes that about half of the warming occurs within the first 10 years after an instantaneous step increase in atmospheric CO2 concentration, but about one-quarter of the warming occurs more than a century after the step increase. The authors used results from the majority of the world's leading climate models - over 50 climate simulations, which were performed using 20 different climate models for the Climate Model Intercomparison Project, Phase 5 (CMIP5).
More than half the people in Ontario who reported they had major depression did not use physician-based mental health services in the following year, according to a new paper based on OHIP data from the Institute for Clinical Evaluative Sciences.
Estimates claim that up to one in four people suffer at some point in their lives from depression, which reduces quality of life and is associated with increased disability and lower productivity at work. Women are diagnosed with depression more than twice as often as men. The analysis set out to see whether gender plays a role in seeking mental health care. In general, women use mental health services about 10 per cent more than men, reflecting the fact they use health care services overall more than men.
