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ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


Does deep brain stimulation for Parkinson's increase risk of dementia?

Posted: 01 Jul 2020 01:29 PM PDT

There's good news for people with Parkinson's disease. A new study shows that deep brain stimulation may not increase the risk of developing dementia.

Fever-associated seizures after vaccination do not affect development, behavior

Posted: 01 Jul 2020 01:29 PM PDT

Now a new study has found there is no difference in developmental and behavioral outcomes for children who have febrile seizures after vaccination, children who have febrile seizures not associated with vaccination and children who have never had a seizure.

Beacon from the early universe

Posted: 01 Jul 2020 01:01 PM PDT

Often described as cosmic lighthouses, quasars are luminous beacons that can be observed at the outskirts of the Universe, providing a rich topic of study for astronomers and cosmologists. Now scientists have announced the discovery of the second-most distant quasar ever found, at more than 13 billion lightyears from Earth.

Higher concentration of metal in Moon's craters provides new insights to its origin

Posted: 01 Jul 2020 12:17 PM PDT

Life on Earth would likely not be possible without the Moon; it keeps our planet's axis of rotation stable, which controls seasons and regulates our climate. However, there has been considerable debate over how the Moon was formed. The popular hypothesis contends that the Moon was formed by a Mars-sized body colliding with Earth's upper crust which is poor in metals. But new research suggests the Moon's subsurface is more metal-rich than previously thought, providing new insights that could challenge our understanding of that process.

First confirmed underwater Aboriginal archaeological sites found off Australian coast

Posted: 01 Jul 2020 12:17 PM PDT

Ancient submerged Aboriginal archaeological sites await underwater rediscovery off the coast of Australia, according to a study.

Jellyfish-inspired soft robots can outswim their natural counterparts

Posted: 01 Jul 2020 12:17 PM PDT

Engineering researchers have developed soft robots inspired by jellyfish that can outswim their real-life counterparts. More practically, the new jellyfish-bots highlight a technique that uses pre-stressed polymers to make soft robots more powerful.

Influence of insect and microalgae feeds on meat quality

Posted: 01 Jul 2020 10:42 AM PDT

Worldwide there is growing demand for animal products for human nutrition, despite the popularity of plant-based diets. This means more feed is needed for animals. Future feedstuffs will need to be produced without exacerbating deforestation. Insects and microalgae are up-and-coming sectors to meet protein demands for humans and animals. Therefore, researchers nvestigated whether these alternative protein sources alter meat quality.

A simpler way to make sensory hearing cells

Posted: 01 Jul 2020 10:42 AM PDT

Scientists are whispering the secrets of a simpler way to generate the sensory cells of the inner ear. Their approach uses direct reprogramming to produce sensory cells known as 'hair cells,' due to their hair-like protrusions that sense sound waves.

Study: 35 percent of excess deaths in pandemic's early months tied to causes other than COVID-19

Posted: 01 Jul 2020 09:55 AM PDT

Since COVID-19's spread to the United States earlier this year, death rates in the U.S. have risen significantly. But deaths attributed to COVID-19 only account for about two-thirds of the increase in March and April, according to a new study.

Different tracks, same dinosaurs: Researchers dig deeper into dinosaur movements

Posted: 01 Jul 2020 09:55 AM PDT

Using X-ray-based technology, researchers uncover shared subsurface movement patterns between birds and dinosaurs, adding a new dimension of fossil track diversity.

Alarming long-term effects of insecticides weaken ant colonies

Posted: 01 Jul 2020 09:55 AM PDT

Scientists have shown how even low doses of neonicotinoid insecticides, as they may realistically occur in contaminated soils, adversely affect the development of black garden ants (Lasius niger). This study highlights the need to overthink current deployment and management of chemical pest control for more sustainable agriculture.

Elucidating how asymmetry confers chemical properties

Posted: 01 Jul 2020 09:54 AM PDT

New research categorizes the causes of structural asymmetry, some surprising, which underpin useful properties of crystals, including ferroelectricity, photoluminescence, and photovoltaic ability.

Coordinating complex behaviors between hundreds of robots

Posted: 01 Jul 2020 09:54 AM PDT

Researchers propose a new approach to finding an optimal solution for controlling large numbers of robots collaboratively completing a set of complex linear temporal logic commands called STyLuS*, for large-Scale optimal Temporal Logic Synthesis, that can solve problems massively larger than what current algorithms can handle, with hundreds of robots, tens of thousands of rooms and highly complex tasks, in a small fraction of the time.

First exposed planetary core discovered allows glimpse inside other worlds

Posted: 01 Jul 2020 09:54 AM PDT

The surviving core of a gas giant has been discovered orbiting a distant star, offering an unprecedented glimpse into the interior of a planet.

Knowledge of severe storm patterns may improve tornado warnings

Posted: 01 Jul 2020 09:54 AM PDT

A radar signature may help distinguish which severe storms are likely to produce dangerous tornadoes, potentially leading to more accurate warnings, according to scientists.

Why memory-forming neurons are vulnerable to Alzheimer's

Posted: 01 Jul 2020 09:54 AM PDT

Scientists have used advanced technology to 'micro-dissect' the first brain cells to perish in Alzheimer's disease. The result is a short list of genes that could represent new drug targets.

A binary star as a cosmic particle accelerator

Posted: 01 Jul 2020 07:01 AM PDT

Scientists have identified the binary star Eta Carinae as a new kind of source for very high-energy (VHE) cosmic gamma-radiation. Eta Carinae is located 7500 lightyears away in the constellation Carina in the Southern Sky and, based on the data collected, emits gamma rays with energies up to 400 gigaelectronvolts (GeV), some 100 billion times more than the energy of visible light.

Toward principles of gene regulation in multicellular systems?

Posted: 01 Jul 2020 07:00 AM PDT

Quantitative biologists ombine precision measurements and mathematical models to uncover a common mechanism regulating gene expression during development.

Exercise can slow or prevent vision loss, study finds

Posted: 01 Jul 2020 07:00 AM PDT

Exercise can slow or prevent the development of macular degeneration and may benefit other common causes of vision loss, such as glaucoma and diabetic retinopathy, new research suggests.

Why do arteries age? Study explores link to gut bacteria, diet

Posted: 01 Jul 2020 07:00 AM PDT

Eat a slab of steak and your resident gut bacteria get to work immediately to break it down. But new research shows that a metabolic byproduct, called TMAO, produced in the process can be harmful to the lining of arteries, making them age faster.

A shake-up in cell culturing: Flame sterilization may affect the culture

Posted: 01 Jul 2020 07:00 AM PDT

Researchers have found that flame-sterilizing shake-flasks, to avoid introducing microbial contaminants, considerably increases the carbon dioxide concentration in the flasks. This enhanced carbon dioxide concentration affects the growth of some microbial species, which may affect the quantity of vaccines or other valuable substances produced by the microbes.

Scientists use a Teflon pipe to make a cheap, simple reactor for silica particle synthesis

Posted: 01 Jul 2020 07:00 AM PDT

The synthesis of silica particles, used in bioimaging and drug delivery, could become considerably cheaper and more efficient by adopting a new flow synthesis method which involves a spiral channel and simple Teflon pipe to promote the rapid mixing of precursor fluids.

Building a harder diamond

Posted: 01 Jul 2020 07:00 AM PDT

Scientists create a theoretical carbon-based material that would be even harder than diamond. This work may have industrial applications for cutting and polishing in place of current synthetic diamond.

Material research: New chemistry for ultra-thin gas sensors

Posted: 01 Jul 2020 07:00 AM PDT

The application of zinc oxide layers in industry is manifold and ranges from the protection of degradable goods to the detection of toxic nitrogen oxide gas. Such layers can be deposited by atomic layer deposition (ALD) which employs typically chemical compounds, or simply precursors, which ignite immediately upon contact with air, i.e. are highly pyrophoric.

Tabletop quantum experiment could detect gravitational waves

Posted: 01 Jul 2020 07:00 AM PDT

Tiny diamond crystals could be used as an incredibly sensitive and small gravitational detector capable of measuring gravitational waves, suggests new research.

School absenteeism has surprising consequences for adults

Posted: 01 Jul 2020 05:47 AM PDT

Kids who miss a lot of school from kindergarten to eighth grade may suffer unexpected costs as young adults, a new study finds. Researchers found that those who were more regularly absent in these early years of school were less likely to vote, reported having greater economic difficulties and had poorer educational outcomes when they were 22 to 23 years old.

Hidden sources of mysterious cosmic neutrinos seen on Earth

Posted: 01 Jul 2020 05:47 AM PDT

A new model points to the coronoe of supermassive black holes at the cores of active galaxies to help explain the excess neutrinos observed by the IceCube Neutrino Observatory.

Role models have major influence on female university choices

Posted: 01 Jul 2020 05:46 AM PDT

Women exposed to successful and charismatic role models are more likely to follow them in choosing a university major.