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.
Earlier studies have suggested that omega-3 fatty acids, found in fatty fish such as salmon and in nuts, benefit thinking skills. A new paper in Neurology, based on a study that involved 2,157 women age 65 to 80 who were enrolled in the Women's Health Initiative clinical trials of hormone therapy, disputes that.
The women were given annual tests of thinking and memory skills for an average of six years. Blood tests were taken to measure the amount of omega-3s in the participants' blood before the start of the study.
The discovery of what may be the earliest known creature with what can be discerned as a face has been reported in Nature. Entelognathus primordialis is an exceptionally well-preserved 419-million-year-old fish from China that is the most primitive vertebrate to have a modern type of jaw. This fish is a placoderm, one of a member of an extinct group of gnathostomes (jawed vertebrates), but its jaw is much more like that of a modern bony fish: its discovery may offer a new perspective on the early evolution of these creatures.
If history always felt a little made up and you wished there were more sharply-defined quantitative predictions that could be tested empirically, you are in luck. A new mathematical method has done just that.
An trans-disciplinary team tackled a way to mathematically determine how human societies evolve from small groups to the huge, anonymous and complex societies of today. Their cultural evolutionary model predicts where and when the largest-scale complex societies arose in human history.
Raytheon Company is recognizing 32 teachers from 18 states as "Math Heroes" for their work promoting student enthusiasm and achievement in math. Each Math Hero receives a $2,500 award and a matching grant for his or her school. Winners are selected based on compelling submissions from nominators on the effective and creative ways teachers work with students in math, drawing on new and advanced approaches.Nominations were done by students, parents and school administrators.
The "green seed problem" is a long-standing issue that causes millions of dollars annually in canola crop losses for Canada.
Canola is the major cash crop in Alberta, which produces about 35 per cent of Canada's canola that generates in the province about $5 billion in revenue annually. Across the country, the oilseed crop, whose seeds are pressed into canola oil, contributes about $15 billion a year to the Canadian economy.
However, every year around the time when canola matures, an unpredictable touch of a light frost can damage crop quality and cause severe losses. The discovery of a plant gene regulatory network means plants could be genetically enhanced to prevent green seeds from occurring in mature canola.
A review panel has concluded that the mass stranding of approximately 100 melon-headed whales in the Loza Lagoon system in northwest Madagascar in 2008 was primarily triggered by acoustic stimuli - a multi-beam echosounder system operated by a survey vessel contracted by ExxonMobil Exploration and Production (Northern Madagascar) Limited.
In response to the event and with assistance from The International Fund for Animal Welfare and Wildlife Conservation Society led an international stranding team to help return live whales from the lagoon system to the open sea, and to conduct necropsies on dead whales to determine the cause of death.
Akawaio penak, a previously unknown genus of thin, eel-like electric fish, was discovered in the shallow, murky waters of the upper Mazaruni River is northern Guyana. University of Toronto Scarborough professor Nathan Lovejoy.
If you began to travel to the star nearest to us after ol' Sol, named Alpha Centauri, it takes about four light years.
Now imagine there were instead 10,000 other stars crammed into that 25 trillion miles of space rather than none - that's the kind of density of a galaxy that was recently discovered.
New evidence suggests than no continental ice sheet formed during the Late Cretaceous Period more than 90 million years ago, when the climate was much warmer than it is today, though it has been commonly believed to have happened that way.
Psychopathy is a personality disorder characterized by a lack of empathy and remorse, shallow affect, glibness, manipulation and callousness. Though less than one percent of the general population meet the criteria, the rate of psychopathy in prisons is around 23%.
As you might suspect, psychopaths don't much care when people are in pain.
A new paper using functional magnetic resonance imaging (fMRI) on the brains of 121 inmates of a medium-security prison in the USA finds that in psychopaths, the brain areas necessary for feeling empathy and concern for others fail to become active and be connected to other important regions involved in affective processing and decision-making.
A new study finds that a 'microbial clock' may help forensic scientists who are attempting to determine the time of death in cases involving human corpses.
The 'clock' in this instance is essentially the lock-step succession of bacterial changes that occur postmortem as bodies move through the decay process, much like estimates used to be made involving knowledge of rigor mortis.
Currently, investigators use tools ranging from the timing of last text messages and corpse temperatures to insect infestations on bodies and "grave soil" analyses, with varying results. And the more days that elapse following a person's demise, the more difficult it becomes to determine the time of death with any significant accuracy.
Deep earthquakes occur where the oceanic lithosphere, driven by tectonics, plunges under continental plates – examples are off the coasts of the western United States, Russia and Japan.
Some new research is a step toward replicating the full power of these earthquakes to learn what sets them off and how they unleash their violence and was made possible only by the construction of a one-of-a-kind X-ray facility that can replicate high-pressure and high-temperature while allowing scientists to peer deep into material to trace the propagation of cracks and shock waves.
