The address calculation for distributed data access plays a major role for the performance of ne-grained data-parallel applications. This paper reports about the hardware centrifuge of the Cray T3E which enables the shift of the address calculation from software into hardware. This shift minimizes address calculation overhead reducing communication cost of dynamic communication patterns. The ce...

Simultaneous in-situ measurements of resistivity and capillary pressure in a centrifuge up to speeds of 10000 rpm are reported. The setup can easily be automated for routine measurements and the electrode design takes advantage of the centrifugal force to maintain good contact between the sample and the electrodes. For converting the experimentally measured average saturations and resistivities...

There is a great need for improved methods for the diagnosis of tuberculosis by techniques that are appropriate for control programs in low-income countries. Liquefaction of sputum with sodium hypochlorite followed by concentration of bacilli through overnight sedimentation significantly increases the sensitivity of direct microscopy, and this method could be an alternative for diagnostic cente...

A total of 1,047 sputum samples from pulmonary tuberculosis patients was collected in cetyl pyridinium chloride-sodium chloride solution. Each sample was divided into two parts and randomly allocated for the isolation of Mycobacterium tuberculosis, with one part to be processed by the standard method and the other by a modified method. In the standard method, the samples were processed by using...

A reversed-phase dispersive liquid-liquid microextraction (RP-DLLME) method coupled to HPLC was developed for the extraction of hydroxytyrosol (HTy) and tyrosol (Ty) from virgin olive oil. In this first application of the RP-DLLME method to non-polar samples, the phenolic compounds were directly extracted into an aqueous micro-drop, which could be injected into a chromatography column without a...