Hemicrania continua for the headache. When the symptoms of hemicrania continua are present, it's considered "diagnostic" if they respond completely to indomethacin. The efficacy of indomethacin may not be long term for all patients, as can eventually become ineffective. The factor that allows hemicrania continua and its exacerbations to be differentiated from migraine and cluster headache is that hemicrania continua is completely responsive to indomethacin. Triptans and other abortive medications do not affect hemicrania continua. In addition to persistent daily headache of HC, which is usually mild to moderate (and frequently severe), HC can present other symptoms. These additional symptoms of HC
Formally étale morphism topology, the notion of formally étale for schemes is analogous to formally étale for the discrete topology for rings. That is, a morphism of schemes is formally étale if for every affine "Y"-scheme "Z", every nilpotent sheaf of ideals "J" on "Z" with be the closed immersion determined by "J", and every "Y"-morphism , there exists a unique "Y"-morphism such that . It is equivalent to let "Z" be any "Y"-scheme and let "J" be a locally nilpotent sheaf of ideals on "Z". Formally étale morphism In commutative algebra and algebraic geometry, a morphism is called formally étale if it