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from article Ecological succession
A plant succession involves a predictable set of vegetative changes through a series of successional stages. (U.S. Environmental Protection Agency)
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from article Ecological succession
A spruce tree growing among a stand of cottonwoods. Spruce trees may eventually become the dominant species in this ecosystem. (U.S. National Park Service/Kay White)
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from article Schizophrenia risk genes
Genomic distribution of schizophrenia-associated variants. Represented by red dots, these variants signpost the genomic neighborhoods of schizophrenia risk genes on the 24 human chromosomes. Clusters of association signals (“hot spots”) are visible.…
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from article Web 2.0
Web 2.0 encourages Internet users to actively participate as contributors and to help customize the media and technology as they see fit either for their own purposes or for the benefit of the Web community in which they participate. (Credit:…
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from article Matched-field processing
Plane-wave signal incident on a linear sensor array without any reflections. (a) Signal and sensor-array geometry. (b) Typical plane-wave array-signal-processor output, A(θ), and the matched-field processing output, B(θ), versus signal incident…
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from article Matched-field processing
Plane-wave signal incident on a linear sensor array with one reflection. (a) Signal and sensor-array geometry. (b) Typical plane-wave array-signal-processor output, A(θ), and the matched-field processing output, B(θ), versus signal incident angle, θ.
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from article Matched-field processing
Signals from a remote source incident on a linear sensor array in a waveguide with two reflecting surfaces and four signal paths connecting the source and the array. (a) Signal and sensor-array geometry. (b) Typical plane-wave array-signal-processor…
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from article Moving-target indication
Diagram of radar system with moving-target indication.
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from article Amplitude-modulation radio
An example of a low-frequency broadcast antenna. This three-tower array is connected to the Beidweiler long-wave transmitter (located in Beidweiler, Luxembourg), which broadcasts at a frequency of 234 kHz. Each tower is 290 m (951 ft) tall. (Photo…
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from article Cognition
The internal structures and processes that constitute the basis for cognition emanate from the brain (shown here in a colorized magnetic resonance image). (Credit: Shutterstock)
