Proteins are constantly performing a kind of dance. They move and contort their bodies to fulfill specific functions inside our bodies. The NMDAR protein executes an especially hard dance routine in our brains.
Molecular & Computational biology
Jul 31, 2024
0
62
Rishi Sunak, the British prime minister, recently spoke of feeling hurt and angry at racist comments made about him during the UK election campaign. Anyone who's experienced racist or other discriminatory language is likely ...
Social Sciences
Jul 4, 2024
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1
A team of researchers led by the University of California San Diego has developed a soft, stretchy electronic device capable of simulating the feeling of pressure or vibration when worn on the skin. This device, reported ...
Nanomaterials
Jun 28, 2024
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59
Work is underway on a wiring diagram of the motor circuits in the central nervous system that control muscles in fruit flies. This connectome, as the wiring diagram is called, is already providing detailed information on ...
Molecular & Computational biology
Jun 26, 2024
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85
A question left unanswered in a biologist's lab notebook for 40 years has finally been explained, thanks to a little fish that couldn't wriggle its tail.
Cell & Microbiology
Jun 26, 2024
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1
Using a special wafer-thin gold membrane, ETH researchers have made it significantly easier to study surfaces. The membrane makes it possible to measure properties of surfaces that are inaccessible to conventional methods.
Nanophysics
Jun 25, 2024
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76
Flexible piezoelectric sensors are essential to monitor the motions of both humans and humanoid robots. However, existing designs are either costly or have limited sensitivity.
Nanomaterials
Jun 12, 2024
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8
Goldenrod can perceive other plants nearby without ever touching them, by sensing far-red light ratios reflected off leaves. When goldenrod is eaten by herbivores, it adapts its response based on whether or not another plant ...
Plants & Animals
Jun 11, 2024
0
232
Researchers have created a unique wristwatch that contains multiple modules, including a sensor array, a microfluidic chip, signal processing, and a data display system to monitor chemicals in human sweat. Their study is ...
Nanomaterials
May 24, 2024
0
52
Scientists at Bath, have introduced a breakthrough carbon-based sensor for detecting lactic acid levels in saliva—avoiding the need for an electrical power source.
Nanomaterials
May 22, 2024
0
1
In the fields of communications, signal processing, and in electrical engineering more generally, a signal is any time-varying or spatial-varying quantity.
In the physical world, any quantity measurable through time or over space can be taken as a signal. Within a complex society, any set of human information or machine data can also be taken as a signal. Such information or machine data (for example, the dots on a screen, the ink making up text on a paper page, or the words now flowing into the reader's mind) must all be part of systems existing in the physical world – either living or non-living.
Despite the complexity of such systems, their outputs and inputs can often be represented as simple quantities measurable through time or across space. In the latter half of the 20th century, electrical engineering itself separated into several disciplines, specializing in the design and analysis of physical signals and systems, on the one hand, and in the functional behavior and conceptual structure of the complex human and machine systems, on the other. These engineering disciplines have led the way in the design, study, and implementation of systems that take advantage of signals as simple measurable quantities in order to facilitate the transmission, storage, and manipulation of information.
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