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Affine Deligne-Lusztig varieties are analogs of Deligne-Lusztig varieties in the context of an affine root system. We prove a conjecture stated in the paper [5] by Haines, Kottwitz, Reuman, and the first named author, about the question which affine Deligne-Lusztig varieties (for a split group and a basic σ-conjugacy class) in the Iwahori case are non-empty. If the underlying algebraic group is a classical group and the chosen basic σ-conjugacy class is the class of b = 1, we also prove the dimension formula predicted in op. cit. in almost all cases.

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Attention-deficit/hyperactivity disorder may have substantial impact on family life, peer interactions, and quality of life. Stimulants are recommended as first-line pharmacotherapy for ADHD. OROS(®) MPH (Concerta(®)) is a long-acting preparation with duration of effect for up to 12 h. In this 8-week, prospective, open-label, non-interventional trial the impact of therapy with OROS(®) MPH on functioning in four different areas of life (school, recreation, family life, and peer interaction), severity of disease, and quality of life (QoL) as well as tolerability were investigated under daily routine care. 306 patients, aged 10.2±2.3 years, were either transitioned to OROS(®) MPH from short-acting, immediate-release MPH (-IR) preparations (n=231; 75%), or treatment was initiated with OROS(®) MPH in MPH-naïve patients (n =75; 25%). In both groups, therapy with OROS(®) MPH was associated with significant improvements in daily functioning, severity of disease, and QoL. Adverse events (AE) were documented in 160 patients (52.3%). In 95 patients (31.0%) a causal relationship was assessed as at least possible. Four serious AEs were reported in 2 patients and rated as doubtfully related to study medication. Most frequent AEs (≥5% of patients) were insomnia, anorexia, ineffectiveness of medication, and headache. In 12.1% of patients AE led to discontinuation of study participation. Considering the limitations of this non-interventional study, the results refer to the importance of a therapy that covers not only school-time, but also takes other areas of life into account. Initiating treatment with long-acting preparations, such as OROS(®) MPH in MPH-naïve patients might be a feasible option.

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