Transcranial Doppler (TCD), first described in 1982 [1], is a noninvasive ultrasound (US) study that involves the use of a low-frequency (â¤2 MHz) transducer probe to insonate the basal cerebral arteries through relatively thin bone windows.
Details. as.character and is.character are generic: you can write methods to handle specific classes of objects, see InternalMethods. Further, for as.character the default method calls as.vector, so dispatch is first on methods for as.character and then for methods for as.vector.
Lesson Objective. Students will be able to identify character traits of characters in a story. Lesson Plan. State Standard: . 3.LT-EF.14. Standard Name: Identify character traits in a story. Objective:Students will be able to identify character traits of characters in a story. Do-Now: Round robin activity. Create a list of a minimum of 5 characters that you have studied so far in your class. Put their names on chart paper and post in 5 areas of the room, have students count off by 5âs and circulate in groups.