Latest Science News -- ScienceDaily


02/24/2017 01:20 AM
Who sweats more: Men or women?
Sex differences in heat loss responses are dependent on body size and not sex, meaning that larger individuals sweat more than smaller ones during cycle exercise in warm and tolerable conditions.

02/23/2017 07:47 PM
SARS and MERS: What’s Next?
It may be difficult to remember now, but when SARS was first recognized in February 2003, people were scared. This heretofore unknown disease was killing people—nearly 10 percent of those infected with what came to be recognized as the SARS-associated coronavirus. Before the end of the year, cases were reported in 29 countries.

02/23/2017 07:47 PM
Desks join the internet of things
The internet of things promises to revolutionize the way we live, connecting the objects in our homes to one another and to the vast array of information available online. The possibilities are enormous, and one benefit may be improving our health.

02/23/2017 07:21 PM
Researchers develop model for studying rare polio-like illness
Scientists have developed the first animal model for studying paralysis caused by virus linked to a polio-like illness that paralyzed 120 children in 2014.

02/23/2017 07:21 PM
Understanding the impact of delays in high-speed networks
In a world increasingly reliant on high-speed networks, introducing microsecond delays into such systems can have profound effects.

02/23/2017 07:21 PM
Computer bots are more like humans than you might think, having fights lasting years
Bots appear to behave differently in culturally distinct online environments. A new paper says the findings are a warning to those using artificial intelligence for building autonomous vehicles, cyber security systems or for managing social media.

02/23/2017 07:21 PM
Ball-rolling bees reveal complex learning
Bumblebees can be trained to score goals using a mini-ball, revealing unprecedented learning abilities.

02/23/2017 06:44 PM
Melting sea ice may be speeding nature's clock in the Arctic
Spring is coming sooner to some plant species in the low Arctic of Greenland, while other species are delaying their emergence amid warming winters. The changes are associated with diminishing sea ice cover, according to a study.

02/23/2017 06:44 PM
Values gap in workplace can lead millennials to look elsewhere
Much has been made in popular culture about millennials as they join the working world, including their tendency to job hop. Although this behavior often is explained as a loyalty issue, new research reveals one reason young workers choose to leave a firm is because they find a disconnect between their beliefs and the culture they observe in the workplace.

02/23/2017 06:44 PM
Global vaccine injury system needed to improve public health
A global vaccine injury compensation system administered through the World Health Organization would address the global public health issue of vaccine injuries, experts argue.

02/23/2017 05:43 PM
Nematode resistance in soybeans beneficial even at low rates of infestation
Soybeans with resistance to soybean cyst nematodes seem to have a yield advantage compared to susceptible varieties when SCN is present. Until now, scientists did not know what level of SCN infestation is needed to achieve the yield advantage. A new study shows that SCN resistance from the soybean accession PI 88788 offers yield advantages even at very low infestation rates.

02/23/2017 05:43 PM
Gene mutations cause leukemia, but which ones?
New research sought to better understand one 'typo' in a standard leukemia assay, or test. The study, however, encountered a new problem: an issue with the model system itself.

02/23/2017 05:43 PM
Contact tracing and targeted insecticide spraying can curb dengue outbreaks
Contact tracing -- a process of identifying everyone who has come into contact with those infected by a particular disease -- combined with targeted, indoor spraying of insecticide can greatly reduce the spread of the mosquito-borne dengue virus, finds a study.

02/23/2017 05:43 PM
Air pollution may have masked mid-20th Century sea ice loss
Humans may have been altering Arctic sea ice longer than previously thought, according to researchers studying the effects of air pollution on sea ice growth in the mid-20th Century.

02/23/2017 05:43 PM
Vast luminous nebula poses a cosmic mystery
Astronomers have found an enormous, glowing blob of gas in the distant universe, with no obvious source of power for the light it is emitting. Called an 'enormous Lyman-alpha nebula' (ELAN), it is the brightest and among the largest of these rare objects, only a handful of which have been observed.

02/23/2017 05:43 PM
New link found between sex and viruses
Sexual reproduction and viral infections both rely on a functionally identical protein, according to new research. The protein enables the fusion of two cells, such as a sperm cell and egg cell, or the fusion of a virus with a cell membrane. The discovery suggests that the protein evolved early in the history of life on Earth, and new details about the protein's function could help fight parasitic diseases such as malaria.

02/23/2017 05:42 PM
Almost 4 decades later, mini eyeless catfish gets a name
Discovered in a 1978-79 expedition, a pale, eyeless catfish that doesn't even measure an inch long is now known as Micromyzon orinoco, for the South American river in which it was discovered.

02/23/2017 05:42 PM
Why is pancreatic cancer so hard to treat? Stroma provides new clues
Why are pancreatic tumors so resistant to treatment? One reason is that the 'wound'-like tissue that surrounds the tumors, called stroma, is so dense, likely preventing cancer-killing drugs from reaching the tumor. A team has now discovered heterogeneity in the fibroblast portion of the stroma, opening up the possibility of targeted treatment.

02/23/2017 04:48 PM
Fructose is generated in the human brain
Fructose, a form of sugar linked to obesity and diabetes, is converted in the human brain from glucose, according to a new study. The finding raises questions about fructose's effects on the brain and eating behavior.

02/23/2017 04:48 PM
Removing barriers to early intervention for autistic children: A new model shows promise
Acting on recommendations from the South Carolina Act Early Team, South Carolina changed its policies to pay for early intensive behavioral intervention in children under three revealed to be at high risk for autism spectrum disorder (ASD) by a two-stage screening process. Previously, a formal diagnosis of ASD had been required. As a result, the number of children under three receiving early intervention grew five-fold.

02/23/2017 04:48 PM
Tumor protein could hold key to pancreatic cancer survival
A diagnosis of pancreatic cancer is often a death sentence because current chemotherapies have little impact on the disease. In a new study, researchers were able to slow down growth and spread of tumors by targeting this protein in stellate cells in animal models, in combination with current chemotherapies.

02/23/2017 04:48 PM
Patients registered in a heart failure registry lived longer
Heart failure patients registered in the Swedish Heart Failure Registry receive better medication and have a 35 percent lower risk of death than unregistered patients, according to a new study.

02/23/2017 04:48 PM
Sons of cocaine-using fathers have profound memory impairments
Fathers who use cocaine at the time of conceiving a child may be putting their sons at risk of learning disabilities and memory loss. The researchers say the findings reveal that drug abuse by fathers -- separate from the well-established effects of cocaine use in mothers -- may negatively impact cognitive development in their male offspring.

02/23/2017 04:47 PM
Trilobite eggs in New York
Despite a plethora of exceptionally preserved trilobites, trilobite reproduction has remained a mystery. No previously described trilobite has had unambiguous eggs or genitalia preserved. A new study reports the first occurrence of in situ preserved trilobite eggs from the Lorraine Group in upstate New York, USA.

02/23/2017 04:47 PM
Last year's El Niño waves battered California shore to unprecedented degree
Last winter's El Niño may have felt weak to residents of Southern California, but it was one of the most powerful weather events of the last 145 years, scientists say.

02/23/2017 04:47 PM
Anti-aging gene identified as a promising therapeutic target for older melanoma patients
An anti-diabetic drug can inhibit the growth of melanoma in older patients by activating an anti-aging gene that in turn inhibits a protein involved in metastatic progression and resistance to targeted therapies for the disease, new research indicates.

02/23/2017 04:47 PM
Researchers use laser-generated bubbles to create 3-D images in liquid
Researchers have developed a completely new type of display that creates 3-D images by using a laser to form tiny bubbles inside a liquid 'screen.' Instead of rendering a 3-D scene on a flat surface, the display itself is three-dimensional, a property known as volumetric. This allows viewers to see a 3-D image in the columnar display from all angles without any 3-D glasses or headsets.

02/23/2017 04:47 PM
Direct-to-consumer genomics: Harmful or empowering?
In a new study, a research explores questions that stem from new advances in direct-to-consumer DNA tests, which have the effect of separating the physician-patient relationship from access to new personal health data.

02/23/2017 04:47 PM
Researchers teach drones to land themselves on moving targets
Researchers are using artificial intelligence called fuzzy logic to get drones to navigate and land themselves on moving platforms. This holds promise for commercial uses such as delivering packages from moving vehicles.

02/23/2017 04:47 PM
English learners treated differently depending on where they go to school
As the number of English learners continues to grow across the nation, new research indicates these students are being treated differently depending on where they go to school.

02/23/2017 03:28 PM
In rare disorder, novel agent stops swelling before it starts
A researcher who treats hereditary angioedema says a new drug, a potential game changer, is being studied in larger clinical trial.

02/23/2017 03:27 PM
Early birds may make healthier food choices than night owls
Researchers looked at data from nearly 2,000 randomly chosen people to determine if their circadian or biological clock rhythm (chronotype) affected what they ate and at what time. Clear differences in both energy and macronutrients between the two chronotypes abound, with morning people making healthier choices throughout the day. Evening types ate less protein overall and ate more sucrose in the morning. In the evening, they ate more sucrose, fat and saturated fatty acids.

02/23/2017 03:21 PM
New laser spectroscopy technique to understand atomic and nuclear structure of radioactive atoms
An international collaboration with research groups from five countries – Belgium, Finland, France, Germany and Russia – have applyied high-resolution laser ionization of radioactive atoms in a supersonic gas jet to probe the properties of heavy elements.

02/23/2017 03:21 PM
The body does not absorb genetic material from our food
A study finds no evidence that genetic material from food is absorbed in the human body where it would, for example, be able to change the body’s ability to regulate the cholesterol metabolism or influence the immune system.

02/23/2017 03:20 PM
Top professional performance through psychopathy
The term “psychopath” is not flattering: such people are considered cold, manipulative, do not feel any remorse and seek thrills without any fear – and all that at other’s expense. A study is now shattering this image. They claim that a certain form of psychopathy can lead to top professional performance, without harming others or the company.

02/23/2017 03:20 PM
Viruses support photosynthesis in bacteria
Viruses propagate by infecting a host cell and reproducing inside. This not only affects humans and animals, but bacteria as well. This type of virus is called bacteriophage. They carry so called auxiliary metabolic genes in their genome, which are responsible for producing certain proteins that give the virus an advantage. Researchers have analyzed the structure of such a protein more closely. It appears to stimulate the photosynthesis of host bacteria.

02/23/2017 03:20 PM
Space dust deploy bubble parachutes on their fiery descent, scientists discover
Bubbles acting like parachutes are deployed by some cosmic dust particles on their entry into Earth’s atmosphere, preventing them from burning up.

02/23/2017 03:20 PM
The oldest fossilized giant penguin
A recently discovered fossil of a giant penguin with a body length of around 150 centimeters has been described in a new article. The new find dates back to the Paleocene era and, with an age of approximately 61 million years, counts among the oldest penguin fossils in the world. The bones differ significantly from those of other discoveries of the same age and indicate that the diversity of Paleocene penguins was higher than previously assumed. The team of scientists therefore postulates that the evolution of penguins started much earlier than previously thought, probably already during the age of dinosaurs.

02/23/2017 03:20 PM
Compounds that show potent anti-cancer activity in breast and colon tumor cell lines
Potential drugs have shown low toxicity in non-tumor cell lines, which could decrease side effects during chemotherapy, researchers suggest.

02/23/2017 03:18 PM
Mathematics supports a new way to classify viruses based on structure
Scientists have found new evidence to support a classification system for viruses based on viral structure.

02/23/2017 03:18 PM
Stingless bees have their nests protected by soldiers
Although stingless bees do not have a sting to fend off enemies, they are nonetheless able to defend their hives against attacks. Only four years ago it was discovered that a Brazilian bee species, the Jatai bee, has a soldier caste. The slightly larger fighters guard the entrance to the nest and grip intruders with their powerful mandibles in the event of an attack. Now researchers have identified four further species which produce a special soldier caste to defend their nests.

02/23/2017 03:18 PM
How blood can be rejuvenated
Our blood stem cells generate around a thousand billion new blood cells every day. But the blood stem cells’ capacity to produce blood changes as we age. This leads to older people being more susceptible to anemia, lowered immunity and a greater risk of developing certain kinds of blood cancer. Now for the first time, a research team has succeeded in rejuvenating blood stem cells with established reduced function in aging mice.

02/23/2017 02:24 PM
Warming temperatures could trigger starvation, extinctions in deep oceans
Researchers from 20 of the world's leading oceanographic research centers today warned that the world's largest habitat -- the deep ocean floor -- may face starvation and sweeping ecological change by the year 2100.

02/23/2017 02:24 PM
Study targets warm water rings that fuel hurricane intensification in the Caribbean Sea
A new study deployed 55 aircraft ocean instruments from the National Oceanographic Atmospheric Administration's WP-3D aircraft. The purpose of the scientific mission was to measure ocean temperature, salinity, and currents to understand the structure of these warm-water eddies.

02/23/2017 02:24 PM
Sorting out risk genes for brain development disorders
Gene discovery research is uncovering similarities and differences underlying a variety of disorders affecting the developing brain, including autism, attention deficits, tics, intellectual impairments, developmental delays and language difficulties. Researchers found some genes are more closely associated with autism and others with intellectual impairments, but many times there is overlap, indicating some genes pose broader risks. Certain genes were detected only in males with high-functioning autism.

02/23/2017 02:23 PM
Long-term stress linked to higher levels of obesity, hair samples show
People who suffer long-term stress may also be more prone to obesity, according to research that involved examining hair samples for levels of cortisol, a hormone which regulates the body's response to stress.

02/23/2017 02:23 PM
Scientists close in on cracking 'Enigma Code' of common cold
Scientists say they are a step closer to cracking, what researchers have dubbed, the 'enigma code' of the common cold virus.

02/23/2017 02:22 PM
The role of weight in postmenopausal women's longevity
In a large multiethnic study, being underweight was linked with an increased risk of early death among postmenopausal women, report researchers.

02/23/2017 02:22 PM
PI3K/mTOR inhibitors may be effective against some uterine sarcomas
The protein P-S6S240 may serve as an indicator of poor prognosis for patients with a hard-to-treat type of uterine sarcoma called leiomyosarcoma, and preclinical data suggest that patients whose tumors have this protein may respond to PI3K/mTOR inhibitors.

02/23/2017 02:22 PM
Nursing home residents need more activities to help them thrive
In a survey of staff from 172 Swedish nursing homes, most residents had been outside the nursing home during the previous week, but only one-fifth had been on an outing or excursion.

02/23/2017 02:21 PM
Study finds resistant infections rising, with longer hospital stays for US children
Infections caused by a type of bacteria resistant to multiple antibiotics are occurring more frequently in US children and are associated with longer hospital stays and a trend towards greater risk of death, according to a new study.

02/23/2017 02:21 PM
Researchers ponder the shape of birds' eggs
The shape of birds' eggs varies considerably, for reasons that are unclear, outlines a new report.

02/23/2017 02:21 PM
Link between aging, devastating lung disease discovered
A new study has shown evidence linking the biology of aging with idiopathic pulmonary fibrosis, a disease that impairs lung function and causes shortness of breath, fatigue, declining quality of life, and, ultimately, death. Researchers believe that these findings are the next step toward a possible therapy for individuals suffering from idiopathic pulmonary fibrosis.

02/23/2017 02:21 PM
Tired teens 4.5 times more likely to commit crimes as adults
Teenagers who experience sleep problems and exhibit anti-social behavior are more likely to commit violent crimes as adults, new research concludes.

02/23/2017 02:21 PM
Is back pain killing us?
Older people who suffer from back pain have a 13 per cent increased risk of dying from any cause, research has found. The study of 4390 Danish twins aged more than 70 years investigated whether spinal pain increased the rate of all-cause and disease-specific cardiovascular mortality.

02/23/2017 02:21 PM
A prescription with legs
Physician-delivered step count prescriptions, combined with the use of a pedometer, can lead to a 20 per cent increase in daily steps, as well as measurable health benefits, such as lower blood sugar and lower insulin resistance, for patients with hypertension and/or type 2 diabetes, report researchers.

02/23/2017 02:53 AM
Sum of their parts: Researchers use math to foster environmental restoration
Resource management boundaries seldom align with environmental systems, which can lead to scale mismatch or spatial misalignments. Researchers employ analytic modeling to counter this challenge and foster collaboration and efficient coordination of stakeholders' joint restoration efforts.

02/23/2017 02:53 AM
The value of nutrition and exercise, according to a moth
How can animals that feed mostly on sugar embark on migrations spanning continents? What looked like flawed scientific data led to an unexpected discovery, thanks to the tenacity of a group of biologists.

02/23/2017 02:53 AM
Organ-on-a-chip mimics heart's biomechanical properties
Scientists have created a three-dimensional organ-on-a-chip that can mimic the heart's amazing biomechanical properties in order to study cardiac disease, determine the effects that different drugs have on the heart and screen for new drugs to treat heart ailments.

02/23/2017 02:53 AM
OCD-like behavior linked to genetic mutation
A new study found evidence suggesting how neural dysfunction in a certain region of the brain can lead to obsessive and repetitive behaviors much like obsessive-compulsive disorder (OCD).