Using the waveforms from a digital electronic system, an offline analysis technique on pulse shape discrimination (PSD) has been developed to improve neutron-gamma separation in bar-shaped NE-213 scintillator that couples photomultiplier tube (PMT) at each end. The new improved method, called ``valued-assigned PSD'' (VPSD), assigns normalized fitting residual every waveform as PSD value. This p...

the aim of this study was to evaluate the utility of a proficiency testing program among limited number of local laboratories as an alternative to the iupac/citac guide on proficiency testing with a limited number of participants, specially where international schemes are not accessible. as a sample scheme we planned to determine aflatoxins (b1, g1, b2, g2, total) in iranian pistachio matrix. a...

BACKGROUND Errors of calibrator-assigned values lead to errors in the testing of patient samples. The ability to estimate the uncertainties of calibrator-assigned values and other variables minimizes errors in testing processes. International Organization of Standardization guidelines provide simple equations for the estimation of calibrator uncertainty with simple value-assignment processes, b...

PURPOSE First-year students negotiate new professional culture with a certain amount of excitement and anxiety. There are different approaches for offering guidance. In this study, the authors present Weill Cornell Medical College's experience with an advising program for first- and second-year students. METHODS Fifty faculty advisors were each assigned 1-3 first-year students who they would ...