Search results for "Lower half"
showing 2 items of 2 documents
Lower-half facial migraine: a report of 11 cases.
2004
Purpose Vascular pain of the face constitutes a variant of pain of the head, and includes migraine, cluster headache, paroxysmal hemicrania, and a facial variant of the so-called lower-half migraine. Lower-half facial migraine is a condition difficult to classify; according to the international classifications it could not be found as an individual entity. The objective of the present study is to determine the difficulties we encountered in diagnosis, the ineffective treatments provided, and the pharmacologic treatment effect. Patients and methods A study is made of 11 cases of lower-half facial migraine, corresponding to 10 women and 1 man (mean age, 35 years), commenting on the clinical c…
Rank response functions in an online learning environment
2021
Abstract We estimate rank response functions after receiving rank-order feedback in an online learning platform. We find that the shapes of the rank response functions depend on the outcome measure under consideration. For our effort measure, i.e., whether learners continue to interact with the platform, we can reject a linear rank response function and find significant evidence of a U-shaped relationship. For our performance measure, i.e., correctly solved exercises, we find no clear pattern overall but suggestive evidence for a linearly decreasing rank response function for individuals in the lower half of the ability distribution, i.e., the lower the rank the lower the performance.