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Results 41 - 60 of 1589.


Physics - Chemistry - 19.06.2019
A crystal with a twist
UC Berkeley and Berkeley Lab researchers created a new crystal built of a spiraling stack of atomically thin germanium sulfide sheets. (UC Berkeley image by Yin Liu) With a simple twist of the fingers, one can create a beautiful spiral from a deck of cards. In the same way, scientists at the University of California, Berkeley, and Lawrence Berkeley National Laboratory (Berkeley Lab) have created new inorganic crystals made of stacks of atomically thin sheets that unexpectedly spiral like a nanoscale card deck.

Astronomy / Space Science - Chemistry - 19.06.2019
Abundance of gases in Enceladus's ocean are a potential fuel - if life is there to consume it
Abundance of gases in Enceladus’s ocean are a potential fuel - if life is there to consume it
The subsurface ocean of Saturn's moon Enceladus probably has higher than previously known concentrations of carbon dioxide and hydrogen and a more Earthlike pH level, possibly providing conditions favorable to life, according to new research from planetary scientists at the University of Washington.

Health - 19.06.2019
How an emerging tick-borne pathogen evades detection
Human babesiosis is an emerging infectious disease transmitted to humans by ticks. A team of Yale researchers has discovered how Babesia microti, one of the two Babesia parasite species that transmit the disease in the United States, communicates with its host. Parasites and other pathogens usually secrete proteins to evade the immune system or change the structure of the host's cells to adapt and survive.

Environment - Life Sciences - 19.06.2019
Deep submersible dives shed light on rarely explored coral reefs
Deep submersible dives shed light on rarely explored coral reefs
Just beyond where conventional scuba divers can go is an area of the ocean that still is largely unexplored. In waters this deep - about 100 to at least 500 feet below the surface - little to no light breaks through. Researchers must rely on submersible watercraft or sophisticated diving equipment to be able to study ocean life at these depths, known as the mesophotic zone.

Astronomy / Space Science - Physics - 19.06.2019
Scientists use X-rays from faraway galaxy cluster to reveal secrets of plasma
Most visible matter in the universe doesn't look like our textbook picture of a nucleus surrounded by tethered electrons. Out beyond our borders, inside massive clusters, galaxies swim in a sea of plasma-a form of matter in which electrons and nuclei wander unmoored. Though it makes up the majority of the visible matter in the universe, this plasma remains poorly understood; scientists do not have a theory that fully describes its behavior, especially at small scales.

Physics - Earth Sciences - 19.06.2019
Mineral Discovery Made Easier: X-Ray Technique Shines a New Light on Tiny, Rare Crystals
Mineral Discovery Made Easier: X-Ray Technique Shines a New Light on Tiny, Rare Crystals
Berkeley Lab scientists participate in the discovery of ognitite; other candidate new-mineral studies in progress Like a tiny needle in a sprawling hayfield, a single crystal grain measuring just tens of millionths of a meter - found in a borehole sample drilled in Central Siberia - had an unexpected chemical makeup.

Computer Science / Telecom - 19.06.2019
Around Corners To Detect Object Shapes
Computer vision researchers have demonstrated they can use special light sources and sensors to see around corners or through gauzy filters, enabling them to reconstruct the shapes of unseen objects. The researchers from Carnegie Mellon University , the University of Toronto and University College London said this technique enables them to reconstruct images in great detail, including the relief of George Washington's profile on a U.S. quarter.

Health - Pharmacology - 19.06.2019
Federal guidelines may restrict women’s access to effective HIV protection
Restrictive recommendations for pre-exposure prophylaxis (or PrEP) issued by the Centers for Disease Control and Prevention (CDC) systematically disqualified nearly all women at risk for HIV and/or motivated to use the medication, researchers at the Yale School of Public Health and George Washington University have found.

Health - Computer Science / Telecom - 19.06.2019
'Alexa, monitor my heart': Researchers develop first contactless cardiac arrest AI system for smart speakers
’Alexa, monitor my heart’: Researchers develop first contactless cardiac arrest AI system for smart speakers
Almost 500,000 Americans die each year from cardiac arrest , when the heart suddenly stops beating. People experiencing cardiac arrest will suddenly become unresponsive and either stop breathing or gasp for air, a sign known as agonal breathing. Immediate CPR can double or triple someone's chance of survival, but that requires a bystander to be present.

Environment - 19.06.2019
What role can households play in the energy transition?
What role can households play in the energy transition?
Researchers set up the ENERGISE project designed to help households reduce their energy consumption without compromising their levels of comfort. What role can households play in the energy transition? Can changes to everyday practices make a difference? The European ENERGISE project, led by the University of Geneva (UNIGE), in Switzerland, carried out an experiment to reduce energy consumption in 300 households in eight countries.

Life Sciences - Health - 19.06.2019
Cell Division at High Speed
Cell Division at High Speed
06/19/2019 When two proteins work together, this worsens the prognosis for lung cancer patients: their chances of survival are particularly poor in this case. In malignant tumours, the cells usually proliferate quickly and uncontrollably. A research team from the Biocenter of Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany, has discovered that two important regulators of cell division can interact in this process.

Computer Science / Telecom - 18.06.2019
Researchers use facial quirks to unmask ’deepfakes’
After watching hours of video footage of former President Barack Obama delivering his weekly address, Shruti Agarwal began to notice a few quirks about the way Obama speaks. "Every time he says 'Hi, everybody,' he moves his head up to the left or the right, and then he purses his lips," said Agarwal, a computer science graduate student at UC Berkeley.

Physics - Astronomy / Space Science - 18.06.2019
Scientists use atoms to simulate quantum physics in curved spacetimes
Black holes fascinate the public and scientists alike because they are where it all breaks down: matter, unlucky stars and space flotsam, and our understanding of physics. And while scientists have chipped away at their mysteries-from capturing the first image of one , to detecting the ripples in space-time they create when colliding-key parts of understanding black holes have escaped them.

Health - Life Sciences - 18.06.2019
Biology of leptin, the hunger hormone
In a new study, Yale researchers offer insight into leptin, a hormone that plays a key role in appetite, overeating, and obesity. Their findings advance knowledge about leptin and weight gain, and also suggest a potential strategy for developing future weight-loss treatments, they said. The study, led by investigators at Yale and Harvard, was published the week of June 17, 2019, in the journal PNAS.

Health - Life Sciences - 18.06.2019
How common gut bacteria trigger a lethal autoimmune disease
What causes the immune system, designed to protect us, to turn on the body and attack healthy cells' Common bacteria that reside in the human gut may be partly to blame, say Yale researchers, who studied the origins of a serious autoimmune disease that frequently affects young women. For their study, the research team focused on cells from patients with antiphospholipid syndrome, an immune system disorder that raises the risk of blood clots.

Social Sciences - Life Sciences - 18.06.2019
Guns are often obtained just days before a crime
Guns recovered from crimes are often a decade old, but knowing when a gun was manufactured doesn't reveal how many times it may have changed hands. A new study co-authored by University of Chicago scholar Harold Pollack examines the time elapsed between the acquisition of a gun and when it was used in a crime.

Health - Life Sciences - 18.06.2019
Antidepressants can reduce the empathic empathy
Antidepressants can reduce the empathic empathy
Antidepressant treatment, not only depression per se, can lead to reductions in behavioral and neural responses to pain empathy Depression is a disorder that often comes along with strong impairments of social functioning. Until recently, researchers assumed that acute episodes of depression also impair empathy, an essential skill for successful social interactions and understanding others.

Health - 18.06.2019
GPs should not use inflammatory marker tests to rule out serious conditions
Blood tests that detect inflammation, known as inflammatory marker tests, are not sensitive enough to rule out serious underlying conditions and GPs should not use them for this purpose, according to researchers from the University of Bristol's Centre for Academic Primary Care, University of Exeter and the National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care West (NIHR CLAHRC West).

Life Sciences - 18.06.2019
Researcher carving a new path for skier safety
Researcher carving a new path for skier safety
A spectacular stack on a ski slope in Canada has led to a University of Queensland researcher determining a simple modification that could improve skier safety on the snow. UQ's Queensland Brain Institute researcher Dr Will Harrison studied visual perception under different lighting conditions to identify a better method for grooming ski runs.

Environment - Chemistry - 17.06.2019
Wheat myth comes a cropper
The myth that modern wheat varieties are more heavily reliant on pesticides and fertilisers than older varieties has been debunked by new research. The University of Queensland 's Dr Kai Voss-Fels said modern wheat varieties have out-performed older varieties in side-by-side field trials under both optimum and harsh growing conditions.