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158,187 articles from ScienceDaily

Spinning food processing waste into 'gold'

Scientists have taken the first step at estimating the best large-scale uses for food processing waste, first analyzing its contents and, based on those findings, proposing production opportunities ranging from sustainable fuels, biogas and electricity to useful chemicals and organic fertilizer.

Artificial photosynthesis uses sunlight to make biodegradable plastic

Scientists have succeeded in synthesizing fumaric acid, a raw material for plastics, from CO2 powered by solar energy. Typically, fumaric acid is synthesized from petroleum as a raw material to make polybutylene succinate, a biodegradable plastic, but this research shows that it can be synthesized from CO2 and biomass-derived compounds using renewable energy.

Helpful disturbance: How non-linear dynamics can augment edge sensor time series

Engineers have demonstrated a simple computational approach for supporting the classification performance of neural networks operating on sensor time series. The proposed technique involves feeding the recorded signal as an external forcing into an elementary non-linear dynamical system, and providing its temporal responses to this disturbance to the neural network alongside the original data.

Plasma thrusters used on satellites could be much more powerful

It was believed that Hall thrusters, an efficient kind of electric propulsion widely used in orbit, need to be large to produce a lot of thrust. Now, a new study suggests that smaller Hall thrusters can generate much more thrust -- potentially making them candidates for interplanetary missions.

Pop-up electrode device could help with 3D mapping of the brain

Understanding the neural interface within the brain is critical to understanding aging, learning, disease progression and more. A newly developed, pop-up electrode device could gather more in-depth information about individual neurons and their interactions with each other while limiting the potential for brain tissue damage.

Were galaxies much different in the early universe?

The most sensitive telescope now searching for radio signals from cosmic dawn, an era around 200 million years after the Big Bang when stars ignited, has doubled its sensitivity, a new paper reports. While not yet detecting this radiation -- the redshifted 21-centimeter line -- they have put new limits on the elemental composition of galaxies during the Epoch of Reionization. Early galaxies seem...

It isn't what you know, it's what you think you know

A new study finds that people with strong attitudes tend to believe they understand science, while neutrals are less confident. Overall, the study revealed that that people with strong negative attitudes to science tend to be overconfident about their level of understanding.

How regulatory T cells halt aberrant, self-reactive T cells

New research findings show in detail how self-reactive T cells -- white blood cells dubbed Teffs that mistakenly attack healthy instead of infected cells, thereby causing an autoimmune or an inflammatory response -- are held in check by regulatory T cells, or Tregs. Tregs quickly deploy molecular measures to control rapid proliferation of Teffs, to make sure inflammation is kept in check during an...


Color images from the shadow of a sample

A research team has developed a new method to produce X-ray images in color. In the past, the only way to determine the chemical composition of a sample and the position of its components using X-ray fluorescence analysis was to focus the X-rays and scan the whole sample. This is time-consuming and expensive. Scientists have now developed an approach that allows an image of a large area to be...