background: the aim of this study was to estimate the conversion rate from radiologically isolated syndrome (ris) to definite multiple sclerosis (ms). methods: during a mean (standard deviation [sd]) follow-up period of 17.4 (5.4) (range 8-29) months, 25 subjects with ris and without neurological symptom aged 22-45 year from a single-center have been examined for the occurrence of definite ms. ...

The number of the training samples per person has a significant impact on face recognition (FR) performance. For the single training sample per person (STSPP) problem, most traditional FR algorithms exhibit performance degradation owing to the limited information available to predict the variance of the query sample. This paper proposes a new method for the STSPP problem in FR, namely the Learn...

We describe a face detection algorithm, which characterizes and localizes skin regions and eyes in 2D images using color information. The method is scale-independent, works on images of either frontal, rotated or tilted faces, with a single person or group of people, and does not require any manual setting or operator intervention. The algorithm has been used successfully as first step of a per...

Referring to the European and especially German education system, this article first identifies that both forms of governance in educational systems as well pedagogical professionalization have fallen behind. We present new proposals for a substantive evidence-based reinterpretation reshaping what is can be how changed. In order address these shortcomings, we follow suggestions systemic-constru...

We evaluated the within-person variability of urinary BPA levels over two samples collected three years apart in 90 Women's Health Initiative participants. The intraclass correlation coefficient was 0.09 (95% CI 0.01-0.44), indicating high within-participant variability relative to the between-person variation. Concordance of BPA quartile over time was low (31.7%) and was unrelated to demograph...