Stress mirror polishing for future large lightweight mirrors: design using shape optimization.

This study proposes a new way to manufacture large lightweight aspherics for space telescopes using stress mirror polishing (SMP). This technique is well known to allow reaching high quality optical surfaces in a minimum time period, thanks to a spherical full-size polishing tool. To obtain the correct surface's aspheric shape, it is necessary to define precisely the thickness distribution of the mirror to be deformed, according to the manufacturing parameters.

[Projections about the future number of dementia sufferers: increasing life expectancy not sufficiently considered?].

Background: Several authors pointed out that in the next decades dementia will affect a considerably increasing number of the elderly. The question was raised if life-expectancy was projected to conservative, resulting in revisions with higher life-expectancy and larger numbers of the oldest population. The present paper analyses the influence of such revisions on the future numbers of dementia sufferers in Austria.

Using Rasch-models to compare the 30-, 20-, and 12-items version of the general health questionnaire taking four recoding schemes into account.

Background: The present study compares the 30-, 20-, and 12-items versions of the General Health Questionnaire (GHQ) in the original coding and four different recoding schemes (Bimodal, Chronic, Modified Likert and a newly proposed Modified Chronic) with respect to their psychometric qualities.

Methods: The dichotomized versions (i.e.

[Depression Symptoms of Mothers and Fathers of Persons with Schizophrenia].

Objective: The purpose of the present study was to investigate if depression symptomatology of patients' parents is predicted by the symptoms of schizophrenia.

Methods: 101 mothers and 101 fathers of the same patients suffering from schizophrenia were included into this study. Parents filled in the "Beck Depression Inventory".

[Prevalence and recognition of depression among inpatients of non-psychiatric hospital departments].

Purpose: The purpose of this study is to compare the prevalence of depression among different types of hospital departments. Furthermore, it compares different methods for assessment of its recognition by non-psychiatric physicians.

Methods: 993 inpatients of internal, surgical, gynecological and physical rehabilitation wards of community hospitals were interviewed by research psychiatrists using the Clinical Interview Schedule.