Latest Science News -- ScienceDaily
Using adrenaline in cardiac arrests results in less than one percent more people leaving hospital alive
Fri, 20 Jul 2018 15:49:15 EDT
A clinical trial of the use of adrenaline in cardiac arrests has found that its use results in less than 1 percent more people leaving hospital alive -- but almost doubles the risk of severe brain damage for survivors of cardiac arrest. The research raises important questions about the future use of adrenaline in such cases and will necessitate debate amongst healthcare professionals, patients and the public.
Sahara dust may make you cough, but it's a storm killer
Fri, 20 Jul 2018 15:49:09 EDT
The bad news: Dust from the Sahara Desert in Africa -- totaling a staggering 2 to 9 trillion pounds worldwide -- has been almost a biblical plague on Texas and much of the Southern United States in recent weeks. The good news: the same dust appears to be a severe storm killer.
Wearable device measures cortisol in sweat
Fri, 20 Jul 2018 14:05:19 EDT
By drawing in a bit of sweat, a patch can reveal how much cortisol a person is producing. Cortisol is known as the stress hormone but is involved in many important physiological functions.
Parakeet pecking orders, basketball match-ups, and the tenure-track
Fri, 20 Jul 2018 14:05:14 EDT
Researchers describe a new algorithm called SpringRank that uses wins and losses to quickly find rankings lurking in large networks. When tested on a wide range of synthetic and real-world datasets, ranging from teams in an NCAA college basketball tournament to the social behavior of animals, SpringRank outperformed other ranking algorithms in predicting outcomes and in efficiency.
The need for speed: Why malaria parasites are faster than human immune cells
Fri, 20 Jul 2018 12:52:28 EDT
Elementary cytoskeleton protein is different in parasites and represents a starting point for a possible new therapy against malaria infections.
Eagle-eyed machine learning algorithm outdoes human experts
Fri, 20 Jul 2018 12:51:48 EDT
Researchers have trained computers to quickly and consistently detect and analyze microscopic radiation damage to materials under consideration for nuclear reactors. And the computers bested humans in this arduous task.
A peek into the interplay between sleep and wakefulness
Fri, 20 Jul 2018 11:28:46 EDT
The ventrolateral preoptic nucleus (VLPO) in the brain plays a critical role in the initiation and maintenance of sleep, while the lateral posterior part of the hypothalamus contains neuronal populations implicated in maintenance of arousal. Now, a new study reveals that these arousal-related neurons are heavily innervated by GABAergic neurons in the preoptic area including the VLPO. The work provides important information to understand the mechanisms that control animals' sleep/wakefulness states.
How to weigh stars with gravitational lensing
Fri, 20 Jul 2018 11:28:41 EDT
Astronomers have published the predictions of the passages of foreground stars in front of background stars. A team of astronomers, using ultra-precise measurements from the Gaia satellite, have accurately forecast two passages in the next months. Each event will produce shifts in the background star's position due to the deflection of light by gravity, and will allow the measurement of the mass of the foreground star, which is extremely difficult to determine by other means.
Secondhand smoke causing thousands of still births in developing countries
Fri, 20 Jul 2018 11:28:37 EDT
Exposure to secondhand smoke is causing thousands of stillbirths in developing countries, according to new research.
Speed up solving complex problems: Be lazy and only work crucial tasks
Fri, 20 Jul 2018 11:28:34 EDT
A new improvement to a programming technique called 'lazy grounding' could solve hard-set and complex issues in freight logistics, routing and power grids by drastically reducing computation times.
Wave energy converters are not geared towards the increase in energy over the last century
Fri, 20 Jul 2018 11:28:31 EDT
Wave energy converters are designed to generate the maximum energy possible in their location and take a typical year in the location as a reference. Researchers have been exploring how ocean energy in Ireland has evolved during the last century. The results reveal an increase of up to 40%, which directly affects the output of the converters.
Houseplants could one day monitor home health
Fri, 20 Jul 2018 11:28:29 EDT
A student from two unrelated disciplines -- plant sciences and architectural design -- explore the future of houseplants as aesthetically pleasing and functional sirens of home health. Their idea is to genetically engineer house plants to serve as subtle alarms that something is amiss in our home and office environments.
A molecular key for delaying the progression of Multiple Sclerosis is found
Fri, 20 Jul 2018 11:28:26 EDT
In the lab it was possible to improve the symptoms in the chronic phase of the disease while encouraging the repair of the nervous tissue, and the challenge now is to move the research forward in humans.
Doctors rely on more than just data for medical decision-making
Fri, 20 Jul 2018 11:28:23 EDT
A new study finds patients with similar medical profiles receive different treatments based on doctors' 'gut feelings.'
People love to hate do-gooders, especially at work
Fri, 20 Jul 2018 11:28:16 EDT
Highly cooperative and generous people can attract hatred and social punishment, especially in competitive environments, new University of Guelph study finds.
World's fastest human-made spinning object could help study quantum mechanics
Fri, 20 Jul 2018 11:28:11 EDT
Researchers have created the fastest human-made spinning object in the world, which they believe will help them study material science, quantum mechanics and the properties of vacuum.
Scientists reverse aging-associated skin wrinkles and hair loss in a mouse model
Fri, 20 Jul 2018 11:28:08 EDT
Researchers have reversed wrinkled skin and hair loss, hallmarks of aging, in a mouse model. When a mutation leading to mitochondrial dysfunction is induced, the mouse develops wrinkled skin and extensive, visible hair loss in a matter of weeks. When the mitochondrial function is restored by turning off the gene responsible for mitochondrial dysfunction, the mouse returns to smooth skin and thick fur, indistinguishable from a healthy mouse of the same age.
Greening vacant lots reduces feelings of depression in city dwellers
Fri, 20 Jul 2018 11:28:06 EDT
Greening vacant urban land significantly reduces feelings of depression and improves overall mental health for the surrounding residents, researchers show in a new randomized, controlled study. The findings have implications for cities across the United States, where 15 percent of land is deemed ''vacant'' and often blighted or filled with trash and overgrown vegetation.
Most common shoulder operation is no more beneficial than placebo surgery
Fri, 20 Jul 2018 09:25:18 EDT
Researchers show that one of the most common surgical procedures in the Western world is probably unnecessary. Keyhole surgeries of the shoulder are useless for patients with 'shoulder impingement', the most common diagnosis in patients with shoulder pain.
Effect of genetic factors on nutrition: The genes are not to blame
Fri, 20 Jul 2018 09:25:15 EDT
Individualized dietary recommendations based on genetic information are currently a popular trend. A team has systematically analyzed scientific articles and reached the following conclusion: There is no clear evidence for the effect of genetic factors on the consumption of total calories, carbohydrates, and fat. According to the current state of knowledge, the expedience of gene-based dietary recommendations has yet to be proven.