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Frequency Deviations and Generation Scheduling in the Nordic System

Abstract in UndeterminedHigh penetration of variable generation such as wind power increases the demands on frequency control. The same applies to island operation and in particular if this involves variable generation, which is planned at the Danish island Bornholm. While it is obvious that the frequency control need to be considered, the disturbances caused to this control by the hourly dispatch

The pragmatics of imperative and declarative pointing

Bates (1976) is the starting-point for an analysis of pointing that does not involve explicit higher-order intentions. It is claimed that declarative pointing is essentially intersubjective, while imperative pointing is based on behaviourally motivated regularities. Declarative pointing has an indicating function. Other behaviours associated with it pertain either to its preparatory and enabling c

Oral tetrahydroaminoacridine treatment of Alzheimer's disease evaluated clinically and by regional cerebral blood flow and EEG

Neurochemical evidence indicates that cognitive impairment in dementia of Alzheimer type (DAT) is related to degeneration of cholinergic neurons in the brain. A pharmacological approach is treatment with a cholinesterase inhibitor such as tetrahydroaminoacridine (THA). THA treatment of 17 patients with DAT was studied with a double-blind crossover design with three types of treatment, THA + lecith