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Tracking Down Genetic Influences on Brain Disorders

28-Nov-2017

New findings will help to identify the genetic causes of brain disorders: researchers at the Universities of Basel, Bonn and Cologne have presented a systematic catalog of specific variable locations in the genome that influence gene activity in the human hippocampus. Individual differences in ...

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The stacked colour sensor

True colours meet minimization

17-Nov-2017

Red-sensitive, blue-sensitive and green-sensitive colour sensors stacked on top of each other instead of being lined up in a mosaic pattern - this principle could allow image sensors with unprecedented resolution and sensitivity to light to be created. However, up to now, the reality hasn't quite ...

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The world's shortest laser pulse

Observe the movement of electrons during chemical reactions in slow motion

02-Nov-2017

ETH researchers succeeded in shortening the pulse duration of an X‑ray laser to only 43 attoseconds. With a time resolution in the range of a few quintillionths of a second, they are now able for the first time to observe the movement of electrons during chemical reactions in slow motion. In ...

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How much does life weigh?

New cell scale with high resolution

27-Oct-2017

ETH researchers have developed a scale for measuring cells. It allows the weight of individual living cells, and any changes in this weight, to be determined quickly and accurately for the first time. The invention has also aroused significant interest both in and outside the field of ...

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Holograms for molecules

27-Sep-2017

Much can be detected in blood or urine: viral illnesses, metabolic disorders or autoimmune diseases can be diagnosed with laboratory tests, for instance. But such examinations often take a few hours and are quite complex, which is why doctors hand the samples over to specialist ...

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Rapid imaging of granular matter

22-Sep-2017

Even in our modern world full of highly technological machines and devices it is still impossible to predict when rockslides, such as the recent one in Graubünden, or earthquakes will occur and how exactly they evolve. This is partly due to the fact that despite many years of research, scientists ...

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Quick and reliable 3-D imaging of curvilinear nanostructures

08-Sep-2017

Physical and biological sciences increasingly require the ability to observe nano-sized objects. This can be accomplished with transmission electron microscopy (TEM), which is generally limited to 2D images. Using TEM to reconstruct 3D images instead usually requires tilting the sample through an ...

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More inflexible than imagined

29-Aug-2017

Oligosaccharides – chains of sugar building blocks – are essential for biological cells. Scientists had thought that these molecules were freely mobile, but an international research team has now shown that such sugar molecules can form rigid structures, previously found only in DNA and ...

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Cell senescence is regulated by innate DNA sensing

02-Aug-2017

Cells in the body or in cultures eventually stop replicating. This phenomenon is called "senescence" and is triggered by shortening of telomeres, oxidative stress or genetic damage to the cells, either acute or simply due to the cell growing "old". Understanding the causes and impact of ...

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3-D imaging of surface chemistry in confinement

24-Jul-2017

EPFL researchers have developed an optical imaging tool to visualize surface chemistry in real time. They imaged the interfacial chemistry in the microscopically confined geometry of a simple glass micro-capillary. The glass is covered with hydroxyl (-OH) groups that can lose a proton - a ...

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