Unsere Gruppe organisiert über 3000 globale Konferenzreihen Jährliche Veranstaltungen in den USA, Europa und anderen Ländern. Asien mit Unterstützung von 1000 weiteren wissenschaftlichen Gesellschaften und veröffentlicht über 700 Open Access Zeitschriften, die über 50.000 bedeutende Persönlichkeiten und renommierte Wissenschaftler als Redaktionsmitglieder enthalten.
Open-Access-Zeitschriften gewinnen mehr Leser und Zitierungen
700 Zeitschriften und 15.000.000 Leser Jede Zeitschrift erhält mehr als 25.000 Leser
Jonah Chao, Gerald Chaban, Changming Cheng, Sanggetha Periya, C. C. Liew and Samuel Chao5
Objective: A number of studies compare the microarray normalization methods MAS5 (Microarray Suite Version 5), RMA (Robust Multi-array Average) and PLIER (Probe Logarithmic Error Intensity Estimate) with respect to the rate at which genes of interest are identified. Here we evaluate and compare the stability of the measured gene expression when identical or technical replicate arrays are analyzed in batches of differing sizes and composition. These variations in measured gene expression have implications for clinical applications, which have requirements that differ significantly from those of research applications.
Methods: We evaluated the samples from data set E-MTAB-1532, available on ArrayExpress, a public repository of microarray data using the MAS5, RMA, and PLIER methods. We then evaluated a sample run as triplicate arrays and compared results among the different normalization methods.
Results and conclusion: Our study found that for some applications MAS5 is superior to the other methods, although the MAQC (Micro Array Quality Control) project, which extensively evaluated the performance of the platforms, reached a different conclusion.