Affective disturbances are a common consequence of organic brain lesions of varying aetiology, and it is to be expected that the differentiation between affective symptoms of “functional” origin and those resulting from organic lesions would become an increasingly difficult problem in an age-range which is particularly susceptible to pathological cerebral changes. In fact the classical accounts of mental disorder in old age convey the impression, by their emphasis on the depressive form of senile psychosis, that an affective disorder appearing in senescence is commonly the manifestation of some cerebral degenerative process. This is one of the sources of the widely prevalent view in contemporary clinical practice that there is a large group of cases in which dementia and a depressive (and less often a manic) symptom-complex are associated. The overlap being large, an ill-defined line of demarcation is held to exist in old age between the organic degenerative diseases and the affective illnesses of a “functional” kind.
Proxy-based transcoding adapts Web content to be a better match for client capabilities (such as screen size and color depth) and last-hop bandwidths. Traditional transcoding breaks the end-toend model of the Web, because the proxy does not know the semantics of the content. Server-directed transcoding preserves end-to-end semantics while supporting aggressive content transformations.We show how server-directed transcoding can be integrated into the HTTP protocol and into the implementation of a proxy. We discuss several useful transformations for image content, and present measurements of the performance impacts. Our results demonstrate that server-directed transcoding is a natural extension to HTTP, can be implemented without great complexity, and can provide good performance when carefully implemented. • 393 • B. Knutsson et al.
The previous paper of this series (Roth and Hopkins, 1953) described test performance in senile and affective psychosis. The same tests have been administered to patients in three other diagnostic groups: paraphrenia, arteriosclerotic psychosis, and acute confusional states. These five clinical categories account for the majority of mental hospital admissions in patients over the age of 60.
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