Possible signs and symptoms in anyone older than the age of 2 include: 1  Sudden high fever. 2  Stiff neck. 3  Severe headache that seems different than normal.  Headache with nausea or 1  vomiting. Confusion or difficulty concentrating. 2  Seizures. Sleepiness or difficulty waking.  Sensitivity to 1  light. No appetite or  thirst.
Lexis (linguistics) In generative linguistics, a lexis or lexicon is the complete set of all possible words in a language. In this sense, child, children, child's and children's are four different words in the English lexicon. In systemic-functional linguistics, a lexis or lexical item is the way one calls a particular thing or a type of phenomenon.
the lexile framework for reading is an educational tool that links text complexity and readers ability on a common metric known as the lexile scale a student receives a lexile reader measure as a score from a reading test the lexile measure describes the student s reading ability lexile measure can be interpreted as the level of book that a student can read with 75 % comprehension experts have identified a 75 % comprehension level as offering the reader a certain amount of comfort and yet still offering a challenge