Browsing by Author "Neumann, K."

The objective of this investigation was to assess the suitability of some standard time-series models to perform a specific task in the context of recent change in banking regulations in Germany. The task is to estimate the value at risk (VaR) associated with financial assets on a daily basis. The procedure employed by the supervisory authorities to monitor whether a model used for this purpose adequately performs this task is outlined. Nine time-series models were investigated using share prices from the Frankfurt Stock exchange. The models were compared in terms of criteria that are derived from the new regulations. The results are reported. Copyright (C) 2001 John Wiley & Sons, Ltd.

BackgroundThe Healthy Hearing (HH) programme at the Special Olympics (SO) revealed hearing disorders in between 16 and 40% of athletes. However, it is not clear whether these prevalence represents the entire population with intellectual disability. Therefore, this study compares the hearing status of SO athletes with an intellectual disability (ID) to students with ID at a special needs school. Materials and MethodsThe HH screening was performed in 637 athletes (mean age 27.1years, range 9.7-70.6years) during the 2008 German SO Summer Games - and in 198 special needs students (mean age 12.7years, range 6.7-20.0years). ResultsTwenty-two per cent of athletes and 18% of students failed the HH screening. Approximately 60% of the total participants received recommendations for further follow-up and treatment without between-group differences. ConclusionsThe results of the HH screening at SO events are assumed to be representative of children and adolescents with ID in special needs schools.

Background: Since autumn 1998 the multicenter interdisciplinary study group "Test Materials for CI Children" has been compiling a uniform examination tool for evaluation of speech and hearing development after cochlear implantation in childhood. Methods used: After studying the relevant literature, suitable materials were checked for practical applicability, modified and provided with criteria for execution and break-off. For data acquisition, observation forms for preparation of a PC-version were developed. Results: The evaluation set contains forms for master data with supplements relating to postoperative processes. The hearing tests check supra-threshold hearing With loudness scaling for children, speech comprehension in silence (Mainz and Gottingen Test for Speech Comprehension in Childhood) and phonemic differentiation (Oldenburg Rhyme Test for Children), the central auditory processes of detection, discrimination, identification and recognition (modification of the "Frankfurt Functional Hearing Test for Children") and audiovisual speech perception (Open Paragraph Tracking, Kiel Speech Track Program). The materials for speech and language development comprise phonetics-phonology, lexicon and semantics (LOGO Pronunciation Test), syntax and morphology (analysis of spontaneous speech), language comprehension (Reynell Scales), communication and pragmatics (observation forms). The MAIS and MUSS modified questionnaires are integrated. Conclusions: The evaluation set serves quality assurance and permits factor analysis as well as controls for regularity through the multicenter comparison of long-term developmental trends after cochlear implantation.