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Modern boundaries of the constellation Cancer, the Crab. The celestial equator is 0° of declination, which corresponds to celestial latitude. Right ascension corresponds to celestial longitude, with each hour of right ascension representing 15° of…

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from article Apraxia

Language skills involve comprehension, speech, reading, and writing. The motor speech area (Broca's area) in the brain initiates speech motor functions. The Wernicke area aids in the interpretation of language. The primary motor cortex is…

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from article Fire and disturbance ecology

Image taken in July 2012 showing the effects of a low-severity ground fire in a ponderosa pine (Pinus ponderosa)-dominated forest in the Sinlahekin Wildlife Area, Okanogan County, Washington. This was a prescribed fire and was applied to the…

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from article Fire and disturbance ecology

Image taken in October 2010 showing multiple fire scars in the tree rings of a cross section of a +400-year-old ponderosa pine (Pinus ponderosa) tree. The fire scars are the black curved lines near the bottom of the image. Each has been dated to the…

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from article Fire and disturbance ecology

Image showing a lake sediment core recovered from Sunrise Lake, Mount Rainier National Park, Washington, in August 2012. (Credit: Megan Walsh)

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from article Fire and disturbance ecology

Image showing a view of macroscopic charcoal under a stereomicroscope (approximately 40× magnification). Charcoal, which is created from the incomplete combustion of biomass, accumulates in lakes and wetlands following fire events and is preserved…

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from article Fire and disturbance ecology

Image showing the slow regrowth of a subalpine fir (Abies lasiocarpa)-dominated forest nearly 10 years after a high-severity, stand-replacing fire burned near Fish Lake in the Wallowa-Whitman National Forest, Oregon. (Credit: Megan Walsh)

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from article Fire and disturbance ecology

Image showing the cone of a lodgepole pine (Pinus contorta) that was heated, but not burned, during the September 2012 Table Mountain Fire near Ellensburg, Washington. Lodgepole pine cones are serotinous, meaning they are sealed with a waxy coating,…

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from article Fire and disturbance ecology

Image showing Oregon white oak (Quercus garryana) resprouting from the base of a tree burned in the August 2012 Taylor Bridge Fire near Ellensburg, Washington. This photo was taken in November 2012, only 2 months after the fire occurred, at which…

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from article Fire and disturbance ecology

Image showing the thickness of the bark on an old-growth Douglas-fir tree found in the Willamette National Forest, near Lowell, Oregon. Look near the middle of the trunk and you can see that the bark on this tree is almost 10 cm thick. (Credit:…