Science News

Subscribe to Science News feed Science News
Updated: 42 min 22 sec ago

Early life trauma in men associated with reduced levels of sperm microRNAs

Tue, 05/22/2018 - 10:56pm
Exposure to early life trauma can elevate risk for poor physical and mental health in individuals and their children. A new epigenetics study in both men and mice posits that some of the vulnerability in children may derive from stress-associated reductions in microRNAs in their father's sperm.
Categories: Science News

New treatment for severe asthma

Tue, 05/22/2018 - 5:00pm
Researchers have developed a new method to treat severe asthma. In a study of over 200 participants with severe asthma, the new treatment was shown to have improved asthma symptoms and lung function, while reducing the need for corticosteroids by up to 70%.
Categories: Science News

Putting the optical microscope under the microscope to achieve atomic accuracy

Tue, 05/22/2018 - 5:00pm
New work enables optical microscopes to measure these nanometer-scale details with a new level of accuracy.
Categories: Science News

Amazonian 'lookout' birds help other species live in dangerous neighborhoods

Tue, 05/22/2018 - 5:00pm
Usually, birds of a feather flock together -- but in the Amazon, some flocks feature dozens of species of all shapes and colors. A new study singles out one reason why these unusually diverse flocks exist: lookout species that call in alarm when they spot dangerous predators.
Categories: Science News

How order first appears in liquid crystals

Tue, 05/22/2018 - 4:01pm
Chemists have shown a technique that can identify regions in a liquid crystal system where molecular order begins to emerge just before the system fully transitions from disordered to ordered states.
Categories: Science News

Posttraumatic stress affects academics

Tue, 05/22/2018 - 3:44pm
Posttraumatic stress disorder (PTSD) caused by traumatic military experiences is associated with feelings of anxiety, anger, sadness and/or guilt. New research is evaluating how PTSD symptoms increase risks for academic difficulties as well.
Categories: Science News

Guns in Chicago just '2.5 handshakes' away, study finds

Tue, 05/22/2018 - 3:44pm
In one of the first studies to try to map a gun market using network science, researchers used the novel scientific approach to understand how close offenders are to guns in the city of Chicago. Recreating Chicago's co-offending network of approximately 188,000 people, the researchers used data on firearms recovered by the Chicago Police Department to locate who in the network possessed those guns.
Categories: Science News

Fluid dynamics may play key role in evolution of cooperation

Tue, 05/22/2018 - 3:21pm
In a new study, physicists examined how the mechanical properties of an environment may shape the social evolution of microbial populations.
Categories: Science News

Science in the palm of your hand: How citizen science transforms passive learners

Tue, 05/22/2018 - 3:21pm
Citizen science projects can engage even children who previously were not interested in science. This article provides guidance on building these lessons.
Categories: Science News

Malaria-causing parasite manipulates liver cells to survive

Tue, 05/22/2018 - 3:21pm
Before invading the bloodstream, the malaria-causing Plasmodium parasite rapidly reproduces inside its host's liver cells. Researchers show that liver-stage Plasmodium relies on a host protein called aquaporin-3 to survive and copy itself. Inhibiting the function of aquaporin-3 may provide a new way to keep Plasmodium from proliferating and prevent malaria before symptoms start.
Categories: Science News

Using 3-D X-rays to measure particle movement inside lithium ion batteries

Tue, 05/22/2018 - 3:21pm
Lithium ion battery performance can decay over time, may not fully charge after many charge/discharge cycles, and may discharge quickly even when idle. Researchers have applied a technique using 3D X-ray tomography of an electrode to better understand what is happening on the inside of a lithium ion battery and ultimately build batteries with more storage capacity and longer life.
Categories: Science News

New tech may make prosthetic hands easier for patients to use

Tue, 05/22/2018 - 1:27pm
Researchers have developed new technology for decoding neuromuscular signals to control powered, prosthetic wrists and hands. The work relies on computer models that closely mimic the behavior of the natural structures in the forearm, wrist and hand. The technology could also be used to develop new computer interface devices for applications such as gaming and computer-aided design.
Categories: Science News

Invasive seaweed makes fish change their behavior

Tue, 05/22/2018 - 1:26pm
Researchers have found that changes in the seascape may impact the behavior of fish and could be leaving them less options for refuge and more vulnerable to predators.
Categories: Science News

Technique doubles conversion of CO2 to plastic component

Tue, 05/22/2018 - 1:26pm
Fossil fuels have long been the precursor to plastic, but new research has detailed a technique for doubling the amount of carbon dioxide that gets converted to ethylene -- an essential component of the world's most common plastic.
Categories: Science News

Two-and-a-half-year expedition ends in world's most biodiverse protected area

Tue, 05/22/2018 - 1:26pm
After a two-and-a-half-year expedition through the world's most biodiverse protected area, the Identidad Madidi explorers have concluded their epic quest of completing a massive biological survey of Madidi National Park, uncovering more than 120 potentially new species of plants, butterflies and vertebrates in the process.
Categories: Science News

Decoding digital ownership: Why your e-book might not feel like 'yours'

Tue, 05/22/2018 - 1:23pm
People feel very differently about owning physical books versus e-books, a recent study shows. While stereotypes suggest that younger consumers prefer digital books, that is not actually the case, researchers found.
Categories: Science News

New brain development disorder identified by scientists

Tue, 05/22/2018 - 1:22pm
Researchers have identified a new inherited neurodevelopmental disease that causes slow growth, seizures and learning difficulties in humans.
Categories: Science News

First record of large-antlered muntjac in Vietnam

Tue, 05/22/2018 - 12:33pm
In November 2017 -- under a biodiversity monitoring and assessment activity supported by the US Agency for International Development -- scientists and conservationists captured photographs of one of the rarest and most threatened mammal species of Southeast Asia, the large-antlered muntjac, in Quang Nam province, central Vietnam.
Categories: Science News

Married couples share risk of developing diabetes

Tue, 05/22/2018 - 12:33pm
Researchers have discovered a connection between the BMI of one spouse and the other spouse's risk of developing type 2 diabetes. The researchers therefore believe that efforts to detect undiagnosed diabetes and so-called prediabetes should not focus exclusively on the individual, but also on couples and households.
Categories: Science News

Embryonic mammary gland stem cells identified

Tue, 05/22/2018 - 12:33pm
Scientists have identified the mechanisms that regulate mammary gland development. Using a combination of lineage tracing, molecular profiling, single cell sequencing and functional experiments, they have demonstrated that mammary gland initially develops from multipotent progenitors during the early steps of embryonic mammary gland morphogenesis whereas postnatal mammary gland development is mediated by lineage-restricted stem cells.
Categories: Science News

Pages