1,509 research outputs found
Sorting Integers on the AP1000
Sorting is one of the classic problems of computer science. Whilst well
understood on sequential machines, the diversity of architectures amongst
parallel systems means that algorithms do not perform uniformly on all
platforms. This document describes the implementation of a radix based
algorithm for sorting positive integers on a Fujitsu AP1000 Supercomputer,
which was constructed as an entry in the Joint Symposium on Parallel Processing
(JSPP) 1994 Parallel Software Contest (PSC94). Brief consideration is also
given to a full radix sort conducted in parallel across the machine.Comment: 1994 Project Report, 23 page
Calculation of laminar boundary layer-shock wave interaction on cooled walls by the method of integral relations
Calculation of laminar boundary layer shock wave interaction on cooled walls by method of integral relatio
ER-Mitochondria contact sites : a new regulator of cellular calcium flux comes into play
Endoplasmic reticulum (ER)-mitochondria membrane contacts are hotspots for calcium signaling. In this issue, Raturi et al. (2016. J. Cell Biol. http://dx.doi.org/10.1083/jcb.201512077) show that the thioredoxin TMX1 inhibits the calcium pump SERCA2b at ER-mitochondria contact sites, thereby affecting ER-mitochondrial calcium transfer and mitochondrial bioenergetics
To Give or Not To Give - Is that the Question?: The Changing Face of Emergency Oxygen Therapy.
Oxygen's image, together with its reputation, is changing. No longer is it regarded as a benign panacea for all clinical presentations; indeed it is now increasingly evident that oxygen has the potential to contribute to clinical deterioration and mortality. There is an emerging recognition that oxygen is a drug when administered as a therapeutic intervention and should be used with caution. Contemporary guidelines offer criteria and directives for administration and prescription of oxygen, dependant on the patient's condition, acuity and care setting, yet clinical audit and gathering evidence repeatedly demonstrates that poor practice persists. There is a need to raise awareness of the importance of maintaining normal oxygen levels and be aware of the detrimental effects of both over and under oxygenation. Clearly more research is needed but in the meantime titration to normal or near normal levels seems a pragmatic solution
Calculation of compressible turbulent boundary layers with pressure gradients and heat transfer
Calculation of compressible turbulent boundary layers with pressure gradients and heat transfe
Cytometer on a chip
An assay technique for label-free, highly parallel, qualitative and quantitative detection of specific cell populations in a sample and for assessing cell functional status, cell-cell interactions and cellular responses to drugs, environmental toxins, bacteria, viruses and other factors that may affect cell function. The technique includes a) creating a first array of binding regions in a predetermined spatial pattern on a sensor surface capable of specifically binding the cells to be assayed; b) creating a second set of binding regions in specific spatial patterns relative to the first set designed to efficiently capture potential secreted or released products from cells captured on the first set of binding regions; c) contacting the sensor surface with the sample, and d) simultaneously monitoring the optical properties of all the binding regions of the sensor surface to determine the presence and concentration of specific cell populations in the sample and their functional status by detecting released or secreted bioproducts
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