feed info

153,594 articles from EurekAlert

A combined optical transmitter and receiver

Researchers at Linköping University, together with colleagues in China, have developed a tiny unit that is both an optical transmitter and a receiver. "This is highly significant for the miniaturisation of optoelectronic systems", says LiU professor Feng Gao. The results have been published in Nature Electronics.

A direct protein-to-protein binding couples cell survival to cell proliferation

The regulators of apoptosis watch over cell replication and the decision to enter the cell cycle. Researchers now show a direct link between the protein MCL1 -- a member of the BCL2 protein family known as the gatekeepers of apoptosis -- and the cell-cycle checkpoint protein P18. Through this link, MCL1, which functions in the decision between either cell survival or programmed death, can also...

A twist connecting magnetism and electronic-band topology

Materials that combine topological electronic properties and quantum magnetism are of high current interest, for the quantum many-body physics that can unfold in them and for possible applications in electronic components. For one such material, physicists at ETH Zurich have now established the microscopic mechanism linking magnetism and electronic-band topology.

Case study: Treating COVID-19 in a patient with multiple myeloma

A case study of a patient in Wuhan, China, suggests that the immunosuppressant tocilizumab may be an effective COVID-19 treatment for very ill patients who also have multiple myeloma and other blood cancers. The report, published in Blood Advances, also suggests that blood cancer patients may have atypical COVID-19 symptoms.

Changes to drylands with future climate change

While drylands around the world will expand at an accelerated rate because of future climate change, their average productivity will likely be reduced, according to a new study. These regions, which primarily include savannas, grasslands and shrublands, are important for grazing and non-irrigated croplands. They are also a critical part of the global carbon cycle and make up 41% of Earth's land...

Coronavirus Vaccine: Where are we and what's next? (video)

You might have heard that COVID-19 vaccine trials are underway in Seattle. What exactly is being tested? How much longer will these tests take? And when can we expect a vaccine against the novel coronavirus? We chat with Benjamin Neuman, Ph.D., one of the world's experts on coronavirus, and Daniel Wrapp, one of the scientists who mapped the structure of the protein that the coronavirus uses to...

Coronavirus: Virological findings from patients treated in a Munich hospital

In early February, research teams from Charité - Universitätsmedizin Berlin, München Klinik Schwabing and the Bundeswehr Institute of Microbiology published initial findings describing the efficient transmission of SARS-CoV-2. The researchers' detailed report on the clinical course and treatment of Germany's first group of COVID-19 patients has now been published in Nature*. Criteria may...

COVID-19 pandemic may exacerbate childhood obesity

Public health scientists predict that school closures due to the COVID-19 pandemic will exacerbate the epidemic of childhood obesity in the United States. Andrew Rundle, DrPH, associate professor of epidemiology at Columbia University Mailman School of Public Health, and colleagues expect that COVID-19-related school closures will double out?of?school time this year for many children in the US and...

Do urban fish exhibit impaired sleep?

Melatonin controls the body clock -- high melatonin levels make us feel tired in the evening. However, the hormone also plays an important role in animals' biological rhythms. Artificial light at night -- light pollution -- can suppress the production of melatonin in fish, even at very low light intensities, a finding established by researchers from the Leibniz-Institute of Freshwater Ecology and...

How important is speech in transmitting coronavirus?

Normal speech by individuals who are asymptomatic but infected with coronavirus may produce enough aerosolized particles to transmit the infection, according to aerosol scientists at UC Davis. Although it's not yet known how important this is to the spread of COVID-19, it underscores the need for strict social distancing measures -- and for virologists, epidemiologists and engineers who study...

Larger thighs associated with lower risk of heart disease in obesity

A larger thigh circumference may be associated with lower blood pressure and a reduced risk of heart disease in people with obesity, according to a study published in Endocrine Connections. In overweight and obese Chinese men and women, larger thigh circumferences were associated with lower blood pressure. These findings suggest that carrying more weight on the thighs may be a marker of better...

New family of molecules to join altered receptors in neurodegenerative diseases

An article published in the Journal of Medicinal Chemistry shows a new family of molecules with high affinity to join imidazoline receptors, which are altered in the brain of those patients with neurodegenerative diseases such as Alzheimer's, Parkinson's and Huntington's. According to the preclinical study, the merge of these specific ligands to I2 receptors improves cognitive skills and some...

New laser technique will allow more powerful -- and smaller -- particle accelerators

Scientists at the University of Rochester's Laboratory for Laser Energetics outline a method to shape intense laser light in a way that accelerates electrons to record energies in very short distances. With such a technology, scientists could perform tabletop experiments to probe the Higgs boson or explore the existence of extra dimensions and the particles that make up our universe.