Synchronization Methods
Mostrando 25-36 de 37 artigos, teses e dissertações.
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25. HIDING THE LATENCY OF PAGING AND INPUT/OUTPUT OPERATIONS ON MASSIVELY PARALLEL SYSTEMS
In this thesis, we studied the behavior of parallel programs to understand how to automate the task of hiding latency of paging, input/output, and communication operations on massively parallel processing systems. We designed a parallel performance monitoring environment, the Musketeers, and investigated its use to improve the performance of parallel program
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 199608
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26. SYNCHRONIZATION IN COMMUNICATION SYSTEMS / SINCRONIZAÇÃO EM SISTEMAS DE TELECOMUNICAÇÕES
This text deals with aspects of synchronization in telecommunication systems, with emphasis on the operational functions of synchronous demodulation, signal regeneration, multiplexing/demultiplexing (TDM) and digital switching. The methods of carrier recovery, clock recovery, phase locked loop and elastic store are presented. The final goal consists on the d
Publicado em: 1990
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27. Analysis of cell-cycle gene expression in Saccharomyces cerevisiae using microarrays and multiple synchronization methods
Microarray analysis of gene expression during the yeast division cycle has led to the proposal that a significant number of genes in Saccharomyces cerevisiae are expressed in a cell-cycle-specific manner. Four different methods of synchronization were used for cell-cycle analysis. Randomized data exhibit periodic patterns of lesser strength than the experime
Oxford University Press.
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28. Microarray analysis of gene expression during the cell cycle
Microarrays have been applied to the determination of genome-wide expression patterns during the cell cycle of a number of different cells. Both eukaryotic and prokaryotic cells have been studied using whole-culture and selective synchronization methods. The published microarray data on yeast, mammalian, and bacterial cells have been uniformly interpreted as
BioMed Central.
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29. Regulation of replication timing in fission yeast
Here we report the first characterization of replication timing and its regulation in the fission yeast Schizosaccharomyces pombe. We used three different synchronization methods: centrifugal elutriation, cdc10 temperature-shift and release, and starvation for deoxyribonucleoside triphosphates (dNTPs) by treatment with hydroxyurea (HU) followed by removal of
Oxford University Press.
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30. A UV-responsive G2 checkpoint in rodent cells.
We have studied the effect of UV irradiation on the cell cycle progression of synchronized Chinese hamster ovary cells. Synchronization of cells in S or G2 phase was accomplished by the development of a novel protocol using mimosine, which blocks cell cycle progression at the G1/S boundary. After removal of mimosine, cells proceed synchronously through the S
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31. Magnetic resonance imaging and measurement of blood flow.
Blood flow can be shown as a negative image with magnetic resonance spin-echo techniques or as a positive image with gradient-echo techniques. Phase contrast refers to techniques where structures can be seen because of flow-induced phase shifts. These techniques can show the presence (slow flow) and also the direction of flow. Gradient-echo techniques--inclu
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32. Simultaneous visualization of chromosome bands and hybridization signal using colloidal-gold labeling in electron microscopy.
Electron microscopy (EM) is seldom used with in situ hybridization to localize DNA sequences because banding methods for chromosome identification could not be coupled to EM techniques. We have applied an immunochemical replication-banding method specific for EM to solve this problem. A thymidine synchronization/BrdUrd release protocol allows BrdUrd incorpor
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33. Loss of Protooncogene c-Myc Function Impedes G1 Phase Progression Both before and after the Restriction Point
c-myc is an important protooncogene whose misregulation is believed to causally affect the development of numerous human cancers. c-myc null rat fibroblasts are viable but display a severe (two- to threefold) retardation of proliferation. The rates of RNA and protein synthesis are reduced by approximately the same factor, whereas cell size remains unaffected
The American Society for Cell Biology.
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34. Statistical resynchronization and Bayesian detection of periodically expressed genes
We propose a periodic–normal mixture (PNM) model to fit transcription profiles of periodically expressed (PE) genes in cell cycle microarray experiments. The model leads to a principled statistical estimation procedure that produces more accurate estimates of the mean cell cycle length and the gene expression periodicity than existing heuristic approaches.
Oxford University Press.
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35. Rate and topography of peptidoglycan synthesis during cell division in Escherichia coli: concept of a leading edge.
The rate at which the peptidoglycan of Escherichia coli is synthesized during the division cycle was studied with two methods. One method involved synchronization of E. coli MC4100 lysA cultures by centrifugal elutriation and subsequent pulse-labeling of the synchronously growing cultures with [meso-3H]diaminopimelic acid ([3H]Dap). The second method was aut
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36. Halogenated Peptides as Internal Standards (H-PINS): INTRODUCTION OF AN MS-BASED INTERNAL STANDARD SET FOR LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY*
As the application for quantitative proteomics in the life sciences has grown in recent years, so has the need for more robust and generally applicable methods for quality control and calibration. The reliability of quantitative proteomics is tightly linked to the reproducibility and stability of the analytical platforms, which are typically multicomponent (
The American Society for Biochemistry and Molecular Biology.