Transcranial Doppler Assessment of Cerebral Flow Velocity During Cognitive Tasks Roger E. Kelley, MD; Jen Y. Chang, MS; Nancy J. Scheinman, PhD; Bonnie E. Levin, PhD; Robert C. Duncan, PhD; and Shih-Chang Lee, PhD Background and Purpose: The purpose of this study was to assess the ability of transcranial Doppler ultrasonography to detect selective circulatory changes during cognitive activity. Methods: We measured cerebral artery flow velocity in 21 normal volunteers by transcranial Doppler ultrasonography during rest followed by cerebral activation. Mean and peak systolic
Neptune has dark storms and eight named moons, although there are more than 8 moons. Source(s): My memory http://burro.astr.cwru.edu/stu/neptune_m...
The Full Sap Moon, marked the time of tapping maple trees. To the settlers, it was also known as the Lenten Moon, and was considered to be the last full Moon of winter. April-The Wind Moon-The Pink Moon-The Sprouting Grass Moon-The Egg Moon-The Fish Moon Called the wind moon to signify the winds that carry the seeds.he Full Sap Moon, marked the time of tapping maple trees. To the settlers, it was also known as the Lenten Moon, and was considered to be the last full Moon of winter. April-The Wind Moon-The Pink Moon-The Sprouting Grass Moon-The Egg Moon-The Fish Moon Called the wind moon to signify the winds that carry the seeds.