The use of subband coding on image data is discussed. An overviev~ of siibbai~d coding is given. Advantages of subbanding for browsing and progressive resol~itiori ar-e presented. Implementations for lossless and lossy coding are discussed. Algorithn~ considerations and simple implementations of subband systems are given.

The utilization of sub-lethal decontamination treatments gains more and more interest due to the increased consumers' demand for fresh, minimally processed and convenient food products. These products rely on cold chain and hurdle (combination) technology to provide microbiological safety and quality during their shelf life. To investigate the ability of surviving cells to resuscitate and grow ...

The isolation of carbohydrate variants from cultures of HeLa and conjunctival cells was described. Factors inherent in the cell culture system, such as parent populations and dialyzed serums, have been shown to influence the outcome of variant isolations. Established stable variants incorporated significantly more pentoses or lactate into various cell fractions than the parent cultures. Besides...

From plants to animals, the helium ion microscope (HIM) facilitates ultrastructural investigations of biological systems at both high contrast and resolution without the need for heavy metal coatings [1]. In this study, we describe not only the advantages of HIM over the low-voltage scanning electron microscopy (LV-SEM) of plant tissues, but will also demonstrate advances in preserving sub-nano...

The financial system of the United States contains two large subsystems. The function of the first, generally referred to as monetary policy, is to control the total volume of credit for the purpose of aggregate economic stabilization. The second sub-system, which has no name, consists of a maze of regulations, institutions and tax practices designed to influence the allocation of credit, and h...

Undifferentiated, highly chlorophyllous cell cultures; undifferentiated white cell cultures; green, shoot-forming cultures; and white, shoot-forming cultures of Digitalis parpurea L. were established and subcultured every 3 weeks in liquid media in the light or in the dark. The digitoxin content, the chlorophyll content, and the ribulose bisphosphate carboxylase activity of these cultures were ...