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40 articles from ScienceDaily

Boosting treatments for metastatic melanoma

Clinician-scientists say that new findings might have identified a treatment-boosting drug to enhance effectiveness of therapies for metastatic cancer and make them less toxic, giving patients a fighting chance at survival and improved quality of life.

Blue phosphorus: How a semiconductor becomes a metal

Blue phosphorus, an atomically thin synthetic semiconductor, becomes metallic as soon as it is converted into a double layer. The scientists describe the possibility of constructing nanoscale, highly efficient transistors consisting of only one element.

New technology allows cameras to capture colors invisible to the human eye

New research will allow cameras to recognize colors that the human eye and even ordinary cameras are unable to perceive. The technology makes it possible to image gases and substances such as hydrogen, carbon and sodium, each of which has a unique color in the infrared spectrum, as well as biological compounds that are found in nature but are 'invisible' to the naked eye or ordinary cameras.

Seabirds' response to abrupt climate change transformed sub-Antarctic island ecosystems

A 14,000-year paleoecological reconstruction of the sub-Antarctic islands done by an international research team including HKU has found that seabird establishment occurred during a period of regional cooling 5,000 years ago. Their populations, in turn, shifted the Falkland Island ecosystem through the deposit of high concentrations of guano that helped nourish tussac, produce peat and increase...

When new males take over, these female primates hurry up and mature

Most mammals -- including humans and other primates -- reach sexual maturity early or late depending on lots of different factors, such as how much food there is to eat. Now, researchers studying close primate relatives of baboons known as geladas have shown for the first time that females of this species suddenly hurry up and mature when a new male enters the picture.

Population dynamics and the rise of empires in Inner Asia

Researchers sought to understand the genetic, sociopolitical and cultural changes surrounding the formation of the eastern Eurasian Steppe's historic empires. The study analyzed genome-wide data for 214 ancient individuals spanning 6,000 years and discussed the genetic and cultural changes that preceded the rise of the Xiongnu and Mongol nomadic pastoralist empires.

Human intelligence just got less mysterious

Neuroscience experts have released research that breaks with the past fifty years of neuroscientific opinion, arguing that the way we store memories is key to making human intelligence superior to that of animals.

Two motivational artificial beings are better than one for enhancing learning

Researchers have found that offline consolidation of a motor task was enhanced by praise delivered by robots, whether they were presented on a screen or were physically present. Further, simultaneous praise from two agents had a stronger effect than praise from just one, regardless of whether the agents were physically present or virtual. Such effects could be helpful for facilitating education...

Scientists develop energy-saving 'liquid window'

Scientists have developed a liquid window panel that can simultaneously block the sun to regulate solar transmission, while trapping thermal heat that can be released through the day and night, helping to reduce energy consumption in buildings.

Next-generation computer chip with two heads

Engineers have developed a computer chip that combines two functions - logic operations and data storage - into a single architecture, paving the way to more efficient devices. Their technology is particularly promising for applications relying on artificial intelligence.

Tokyo's voluntary standstill may have stopped COVID-19 in its tracks

Research shows that Japan's noncompulsory state of emergency generally succeeded in reducing human movement. A recent study used mobile phone location data for January-April 2020 to record and plot movement of people in metro Tokyo during the emergence and first wave of COVID-19. Researchers found a movement reduction of over 50 percent, which in turn limited social contact and slowed infection...

Rapid changes in biomarker of inflammation may be a key predictor of COVID-19 outcomes

Researchers analyzed patients' levels of inflammation, known to be associated with severity of illness, by looking at C-reactive protein (CRP) trends in 100 COVID-19 patients admitted to the hospital. They found that a rapid rise in CRP levels during the first 48 to 72 hours of hospitalization was predictive of subsequent respiratory deterioration and intubation, while steadier CRP levels were...

Host genetic factors shape composition of virus communities

Plants can be infected by multiple viruses at once. However, the composition of the pathogen community varies, even if individuals belong to the same species and the same population. Ecologists have now shown that these differences are primarily due to genetic variation among the hosts. The loss of genetic diversity could thus render species more vulnerable to infections and extinction.

Crown-of-thorns eat themselves out of house and home

A world-first study on the Great Barrier Reef shows crown-of-thorns starfish have the ability to find their own way home -- a behavior previously undocumented -- but only if their neighborhood is stocked with their favorite food: corals. The starfish will consume available Acropora and ultimately eat themselves out of house and home before dispersing in search of new feeding grounds.