3,591 articles mezi dny 1.10.2019 a 31.10.2019

Developing new delivery tools for gene editing

Scientists are using simple peptides to deliver gene-editing tools into notoriously hard-to-access lung and airway cells with the goal of creating new treatments for people with diseases like cystic fibrosis, COPD, and asthma.

New technique lets researchers map strain in next-gen solar cells

Researchers have developed a way to map strain in lead halide perovskite solar cells without harming them. Their approach can image the grain structure of a perovskite solar cell, showing that misorientation between microscopic perovskite crystals is the primary contributor to the buildup of strain within the solar cell. Crystal misorientation creates small-scale defects in the grain structure,...

Are we 'brainwashed' during sleep?

A new study illustrates that the brain's cerebrospinal fluid pulses during sleep, and that these motions are closely tied with brain wave activity and blood flow. It may confirm the hypothesis that CSF flow and slow-wave activity both help flush toxic, memory-impairing proteins from the brain.

Spacewatch: Nasa tests new imaging technology in space

Operation was designed to test technology that allows multiple targets to be studied at same time Nasa launched its experimental Fortis (Far-ultraviolet Off Rowland-circle Telescope for Imaging and Spectroscopy) telescope on 28 October from the White Sands missile range in New Mexico.The flight lasted 15 minutes, reached 162 miles (260km) in altitude, and then fell back to Earth – exactly as...

A new hazelnut has cracked its competitive marketplace

Researchers from Oregon State University have completed an examination of, and have released, a new cross-bred hazelnut cultivar known as 'PollyO', and they have discovered it to be a rising star of hazelnuts grown within the United States.

Study analyzed tax treaties to assess effect of offshoring on domestic employment

The practice of offshoring—moving some of a company's manufacturing or services overseas to take advantage of lower costs—is on the rise and is a source of ongoing debate. A new study identified a way to determine how U.S. multinational firms' decisions about offshoring affect domestic employment. The study found that, on average, when U.S. multinationals increase employment in their foreign...

Ancient rhinos roamed the Yukon

In 1973, a teacher named Joan Hodgins took her students on a hike near Whitehorse in Canada's Yukon Territory. In the process, she made history for this chilly region.

Complex cellular machine visualized to yield new insights in cancer

Cellular machines that control chromosome structure, such as the RSC complex, are mutated in about one-fifth of all human cancers. Now, for the first time, scientists have developed a high-resolution visual map of this multi-protein machine, elucidating how the RSC complex works and what role it has in healthy and cancer cells.

Culturing primate embryos to learn more about human development

Little is known about the molecular and cellular events that occur during early embryonic development in primate species. Now, scientists have created a method to allow primate embryos to grow in the laboratory longer than ever before, enabling the researchers to obtain molecular details of key developmental processes for the first time. This research, while done in nonhuman primate cells, can...

Scientists may have discovered whole new class of black holes

New research shows that astronomers' search for black holes might have been missing an entire class of black holes that they didn't know existed. Astronomers offer a new way to search for black holes, and show that it is possible there is a class of black holes smaller than the smallest known black holes in the universe.

'Fungal feature tracker' could accelerate mycology research

A new software tool called Fungal Feature Tracker could accelerate understanding of fungal morphology and growth. Guillermo Vidal-Diez de Ulzurrun and colleagues in the laboratory led by Yen-Ping Hsueh at Academia Sinica, Taipei, Taiwan, present the tool in PLOS Computational Biology.

Delayed neural communication may underlie anticipatory behaviors

Computational modeling suggests that delayed communication between neurons may be an essential factor underlying anticipatory behaviors in people. Irán Román of Stanford University in Stanford, California, and colleagues present these findings in PLOS Computational Biology.