Performance evaluation of a novel multi-pinhole collimator for dopamine transporter SPECT.

There is a tradeoff between spatial resolution and count sensitivity in SPECT with conventional collimators. Multi-pinhole (MPH) collimator technology has potential for concurrent improvement of resolution and sensitivity in clinical SPECT of 'small' organs. This study evaluated a novel MPH collimator specifically designed for dopamine transporter (DAT) SPECT with a triple-head SPECT camera.

The BioScope corpus: biomedical texts annotated for uncertainty, negation and their scopes.

Background: Detecting uncertain and negative assertions is essential in most BioMedical Text Mining tasks where, in general, the aim is to derive factual knowledge from textual data. This article reports on a corpus annotation project that has produced a freely available resource for research on handling negation and uncertainty in biomedical texts (we call this corpus the BioScope corpus).

Results: The corpus consists of three parts, namely medical free texts, biological full papers and biological scientific abstracts.

[The effect of chronic alcohol consumption on blood pressure].

In 1984, a hypertension screening programme was carried out on 13,772 adult subjects in conjunction with a radiological tuberculosis project in the Hungarian town of Csongrád. Among other factors, the effects of a long-lasting and heavy alcohol intake on blood pressure levels were investigated. 21.

A computer algorithm to determine the recognition site of restriction enzymes.

A new algorithm is proposed to determine the type-II restriction endonucleases' recognition site knowing the digested DNA sequence and fragment lengths in an actual case. The algorithm is implemented for the Commodore 64 microcomputer.