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At least 55 records · Page 3Linked to original sources
PubMed1992

[The configuration of a video signal digitalizing system used in astronomy for radiological applications].

A digital system of video signals of astronomical use was developed to be applied in the field of radiology. The images were obtained from radiologic films by means of a standard video camera. The minimal specifications of the digital images for use in radiology are as follows: a) 2.5 lpm spatial resolution, b) a digital resolution of 8 bits (256 gray levels). Images (194 by 154 mm in size) can be obtained. The software processing was adapted for treatment of the images in radiology.

Astronomy↗
PubMed2004

"Cellular astronomy"--a foreseeable future in cytometry.

Advances in electro-optic technology within the past 2 years, notably the development of high-intensity light-emitting diodes and highly efficient charge-coupled device cameras, have made it feasible to produce small, simple, rugged, automated fluorescence image cytometers, with selling prices well below 10,000 US dollars, that can make measurements previously the exclusive domain of flow and scanning cytometers costing many times more. It should be feasible to apply the new cytometric technology in scientific and geographic areas for which a previous generation of instruments was too complex and too expensive, e.g., to problems of diagnosis and management of infectious diseases prevalent at critical levels in resource-poor areas, such as the human immunodeficiency virus, malaria, and tuberculosis.

Cell Separation↗
PubMed2001

Imaging and quantitative analysis of tritium-labelled cells in lymphocyte proliferation assays using microchannel plate detectors originally developed for X-ray astronomy.

Microchannel plate detectors have been used in many astronomical X-ray telescopes. Recently we have begun to use similar detectors to image electron emission from radiolabelled biological assays. Here we show how a microchannel plate (MCP) detector can be used to image tritium uptake in T lymphocyte proliferation assays. Quantitative analysis using the MCP detector has the same sensitivity and speed as conventional liquid scintillation counter (LSC) analysis whilst obviating the need for scintillation fluid. In addition the system permits the imaging of whole plate harvests from a range of plate sizes. Here we present data obtained with 96-well plates and Terasaki plates.

Cell Division↗