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50 articles from ScienceDaily
Herbivores, not predators, most at risk of extinction
- ScienceDaily
- 20/8/5 22:09
One million years ago, the extinction of large-bodied plant-eaters changed the trajectory of life on Earth. The disappearance of these large herbivores reshaped plant life, altered fire regimes across Earth's landscapes, and modified biogeochemical cycling in such a way that Earth's climate became slightly colder.
Turning carbon dioxide into liquid fuel
- ScienceDaily
- 20/8/5 22:09
Chemists report a new electrocatalyst that converts carbon dioxide and water into ethanol with very high energy efficiency, high selectivity for the desired final product and low cost.
Long-term human impacts on reef fish
- ScienceDaily
- 20/8/5 22:09
In a new study investigating human impacts on resource fish biomass on the Island of Hawai'i, researchers observed an alarming 45% decrease in fish biomass over a decade of surveys. The scientists proposed actionable solutions to mitigate future losses.
An iconic Native American stone tool technology discovered in Arabia
- ScienceDaily
- 20/8/5 22:09
A new article examines fluted projectile points from southern Arabia, detailing production methods and technical aspects that indicate differences in function from the technology of the Americas, despite similarities in form. Findings from experimentation and comparative analysis suggest that highly-skilled, convergent technologies can have varying anthropological implications.
Vitamin D twice a day may keep vertigo away
- ScienceDaily
- 20/8/5 22:09
Taking vitamin D and calcium twice a day may reduce your chances of getting vertigo again, according to a new study.
Researchers use InSight for deep Mars measurements
- ScienceDaily
- 20/8/5 22:09
Using data from NASA's InSight Lander on Mars, seismologists have made the first direct measurements of three subsurface boundaries from the crust to the core of the red planet.
Drivers respond to pre-crash warnings with levels of attentive 'gaze'
- ScienceDaily
- 20/8/5 22:09
Engineers conducted open road testing of three collision avoidance systems and demonstrated that a drivers' visual behavior in response to an alert generated from a collision avoidance system can be divided into one of four different behavioral categories: active gaze, self-conscious gaze, attentive gaze and ignored gaze.
Ammonia sparks unexpected, exotic lightning on Jupiter
- ScienceDaily
- 20/8/5 22:09
NASA's Juno spacecraft -- orbiting and closely observing the planet Jupiter -- has unexpectedly discovered lightning in the planet's upper atmosphere, according to a multi-institutional study.
Warming climate may trigger more West Nile outbreaks in Southern California
- ScienceDaily
- 20/8/5 22:09
A new study of captured mosquitoes in Los Angeles finds that West Nile infection is strongly associated with average temperature, and that temperatures above 73 degrees Fahrenheit are highly favorable for West Nile transmission. As climate change brings hotter weather to the region, it is likely that cooler, coastal neighborhoods will be pushed into the 'favorable' zone, accelerating transmission...
Education may be protective for people with gene for familial early onset Alzheimer's
- ScienceDaily
- 20/8/5 22:08
Even for people who carry the gene for early onset Alzheimer's disease, more years of education may slow the development of beta-amyloid plaques in the brain that are associated with the disease, according to a new study.
Implanted neural stem cell grafts show functionality in spinal cord injuries
- ScienceDaily
- 20/8/5 20:01
Researchers report successfully implanting specialized grafts of neural stem cells directly into spinal cord injuries in mice, then documenting how the grafts grew and filled the injury sites, mimicking the animals' existing neuronal network.
New acid mine drainage treatment turns waste into valuable critical minerals
- ScienceDaily
- 20/8/5 20:01
A new way to treat acid mine drainage (AMD) could help transform the environmental pollution problem into an important domestic source of the critical rare earth elements needed to produce technology ranging from smart phones to fighter jets, according to scientists.
Move over Akita: Introducing 'Kuma mutant' mice for islet transplantation research
- ScienceDaily
- 20/8/5 19:33
Scientists have used a gene editing technique to establish a novel mouse model of permanent neonatal diabetes -- the immune-deficient Kuma mutant mice with a specific deletion in the Insulin2 (Ins2) gene. This model is expected to be useful for studying the mechanisms governing insulin-producing cell dysfunctions in the pancreas as well as for evaluating human stem-cell derived or...
Ammonia-rich hail sheds new light on Jupiter's weather
- ScienceDaily
- 20/8/5 18:40
New Juno results suggest that the violent thunderstorms taking place in Jupiter's atmosphere may form ammonia-rich hail, or 'mushballs', that play a key role in the planet's atmospheric dynamics.
New Guinea has the world's richest island flora
- ScienceDaily
- 20/8/5 18:40
New Guinea is the most floristically diverse island in the world, an international collaboration has shown. The study presents a list of almost 14,000 plant species, compiled from online catalogues and verified by plant experts. The results are invaluable for research and conservation, and also underline the importance of expert knowledge in the digital era.
Land use changes may increase disease outbreak risks
- ScienceDaily
- 20/8/5 18:40
Global changes in land use are disrupting the balance of wild animal communities in our environment, and species that carry diseases known to infect humans appear to be benefiting, finds a new study.
The yin and yang of inflammation controlled by a single molecule
- ScienceDaily
- 20/8/5 18:40
Researchers have now identified a protein called histone deacetylase 3 (HDAC3) as the orchestrator of the immune system's inflammation response to infection. By using both specially cultured cells and small animal models, HDAC3 was found to be directly involved in the production of agents that help kill off harmful pathogens as well as the restoration of homeostasis, the body's state of...
Ocean heatwaves dramatically shift habitats
- ScienceDaily
- 20/8/5 18:40
Marine heatwaves across the world's oceans can displace habitat for sea turtles, whales, and other marine life by 10s to thousands of kilometers. They dramatically shift these animals' preferred temperatures in a fraction of the time that climate change is expected to do the same, new research shows.
Dinosaur relative's genome linked to mammals: Curious genome of ancient reptile
- ScienceDaily
- 20/8/5 18:40
Biologists have sequenced the genome of the tuatara, a lizard-like creature that lives on the islands of New Zealand.
Manifestation of quantum distance in flat band materials
- ScienceDaily
- 20/8/5 18:40
A research team found a way to measure the quantum distance of Bloch states in solids by applying magnetic field.
Gut microbes shape our antibodies before we are infected by pathogens
- ScienceDaily
- 20/8/5 18:40
Because the microbiota is so complex, containing hundreds of different bacterial species, it is not known how the presence of microbes in the intestine shaped the antibodies that are present even before we are challenged by an infection. Researchers have now shown how these beneficial microbes reprogram the repertoire of white blood B cells that produce antibodies and how this helps counter...
Sustainable chemistry at the quantum level
- ScienceDaily
- 20/8/5 18:40
Scientists are now using new quantum chemistry computing procedures to categorize hypothetical electrocatalysts that are 'too slow' or 'too expensive', far more thoroughly and quickly than was considered possible a few years ago.
Researchers capture X-ray images with unprecedented speed and resolution
- ScienceDaily
- 20/8/5 18:40
Researchers have demonstrated a new high-resolution x-ray imaging technique that can capture the motion of rapidly moving objects and quickly changing dynamics. The new method could be used for non-destructive imaging of moving mechanical components and to capture biological processes not previously available with medical x-ray imaging.
Sun’s bubble of influence may be shaped like a deflated croissant
- ScienceDaily
- 20/8/5 18:40
Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions.
May the force be with you: Detecting ultrafast light by its force
- ScienceDaily
- 20/8/5 18:40
A research team has developed a new technique to detect nano-sized imperfections in materials. They believe this discovery will lead to improvements in the optical detectors used in a wide range of technologies, from cell phones to cameras and fiber optics, as well as in solar cells.