Science and Technology

The eyes offer a window into Alzheimer's disease

Science Daily - 14/05/2021
While it has been said that the eyes are a window to the soul, a new study shows they could be a means for understanding diseases of the brain. According to new research, retinal scans can detect key changes in blood vessels that may provide an early sign of Alzheimer's, while offering important insights into how one of the most common Alzheimer's risk genes contributes to the disease.

Which animals will survive climate change?

Science Daily - 14/05/2021
Climate change is exacerbating problems like habitat loss and temperatures swings that have already pushed many animal species to the brink. But can scientists predict which animals will be able to adapt and survive? Using genome sequencing, researchers show that some fish, like the threespine stickleback, can adapt very rapidly to extreme seasonal changes. Their findings could help scientists forecast the evolutionary future of these populations.

New complexity of traveling brain waves in memory circuits

Science Daily - 14/05/2021
Researchers have observed a new feature of neural activity in the hippocampus - the brain's memory hub - that may explain how this vital brain region combines a diverse range of inputs into a multi-layered memories that can later be recalled.

Where on Earth is all the water?

Science Daily - 14/05/2021
High-temperature and high-pressure experiments involving a diamond anvil and chemicals to simulate the core of the young Earth demonstrate for the first time that hydrogen can bond strongly with iron in extreme conditions. This explains the presence of significant amounts of hydrogen in the Earth's core that arrived as water from bombardments billions of years ago.

The chemistry of magnesium turned on its head

Science Daily - 14/05/2021
New findings are set to revolutionize the entire chemistry of magnesium. The research team have discovered magnesium, which usually has a double positive charge in chemical compounds, in the elemental zero-oxidation state.

New inhibitor against key leukemia protein

Science Daily - 14/05/2021
Researchers have develop first-in-class inhibitors against ASH1L, a key protein in the development and progression of leukemia.

Few realistic scenarios left to limit global warming to 1.5°C

Science Daily - 14/05/2021
Of the over 400 climate scenarios assessed in the 1.5°C report by the Intergovernmental Panel on Climate Change (IPCC), only around 50 scenarios avoid significantly overshooting 1.5°C. Of those only around 20 make realistic assumptions on mitigation options, for instance the rate and scale of carbon removal from the atmosphere or extent of tree planting, a new study shows. All 20 scenarios need to pull at least one mitigation lever at 'challenging' rather than 'reasonable' levels.

Improving safety and quality of Heparin

Science Daily - 14/05/2021
A new method to analyse the blood thinning drug Heparin has been developed that can pinpoint contaminants more accurately and quickly, providing greater quality control and safety.

Solar wind from the center of the Earth

Science Daily - 14/05/2021
High-precision noble gas analyses indicate that solar wind particles from our primordial Sun were encased in the Earth's core over 4.5 billion years ago. Researchers have concluded that the particles made their way into the overlying rock mantle over millions of years. The scientists found solar noble gases in an iron meteorite they studied. Because of their chemical composition, such meteorites are often used as natural models for the Earth's metallic core.

Charting the expansion history of the universe with supernovae

Science Daily - 14/05/2021
An international research team analyzed a database of more than 1000 supernova explosions and found that models for the expansion of the Universe best match the data when a new time dependent variation is introduced. If proven correct with future, higher-quality data from the Subaru Telescope and other observatories, these results could indicate still unknown physics working on the cosmic scale.

Paleoart that makes fossils come alive

The Hindu:Science - 14/05/2021
Not only do they give arms and legs to prehistoric findings, paleoartists help research to reach larger audiences

Screening for ovarian cancer did not reduce early deaths

Science Daily - 14/05/2021
The latest analysis looked at data from more than 200,000 women aged 50-74 at recruitment who were followed up for an average of 16 years. The women were randomly allocated to one of three groups: no screening, annual screening using an ultrasound scan, and annual multimodal screening involving a blood test followed by an ultrasound scan as a second line test.

Epigenetic changes drive the fate of a B cell

Science Daily - 14/05/2021
B cells are the immune cells responsible for creating antibodies, and most produce antibodies in response to a pathogen or a vaccine. A small subset of B cells instead spontaneously make antibodies that perform vital housekeeping functions. Understanding how epigenetics spur these differences in such similar cells is an important fundamental question in immunology.

Politically polarized brains share an intolerance of uncertainty

Science Daily - 14/05/2021
A new study on political polarization showed how an aversion to uncertainty is often associated with black-and-white political views.

Two-in-one: Wide-angle monitoring meets high-resolution capture in new camera platform

Science Daily - 14/05/2021
In most cameras, there is a trade-off between the field-of-view and resolution. Omnidirectional cameras offer a 360-degree field of view but poor resolution. In a new study, researchers design a dual camera-based platform employing an omnidirectional camera for target detection and a separate camera for its high-resolution capture and report an overall improved performance, opening doors to potential applications in security systems.

Force-sensing PIEZO proteins are at work in plants, too

Science Daily - 14/05/2021
A family of proteins that sense mechanical force--and enable our sense of touch and many other important bodily functions--also are essential for proper root growth in some plants, according to a study led by scientists at Scripps Research and Howard Hughes Medical Institute.

The first frost is the deepest

Science Daily - 14/05/2021
The first frost of autumn may be grim for gardeners but the latest evidence reveals it is a profound event in the life of plants.

Study of 70,000 individuals links dementia to smoking and cardiovascular disease

Science Daily - 14/05/2021
In the largest study of the associations between smoking and cardiovascular disease on cognitive function, researchers found both impair the ability to learn and memorize; and that the effects of smoking are more pronounced among females, while males are more impaired by cardiovascular disease.

Jab-free dengue immunity could be just a click away

Science Daily - 13/05/2021
A dengue virus vaccine candidate has passed an important milestone, with promising results in animal model testing providing hope to the 390 million people infected every year.

Domino-like crystallization of glass

Science Daily - 13/05/2021
Researchers have revealed the thermodynamics and kinetics that facilitate crystal growth in deeply supercooled liquids and glasses. Their insights will help people exploit this atypical crystal growth behavior to enhance glass stability and crystal quality for applications.

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