نتایج جستجو برای: sensitivity index
تعداد نتایج: 711864 فیلتر نتایج به سال:
Despite the increasing number of Americans who are considered to be a part of an ethnoracial minority group, there have been few investigations of the cross-cultural validity of measures of psychopathology. The limited existing literature suggests potential differences between African American (AA) and European American (EA) individuals with respect to the utility of self-report measures, inclu...
Between-subject differences in the shape of the nasal visual field were assessed for 103 volunteers 21-85years of age and free of visual disorder. Perimetry was conducted with a stimulus for which contrast sensitivity is minimally affected by peripheral defocus and decreased retinal illumination. One eye each was tested for 103 volunteers free of eye disease in a multi-center prospective longit...
A highly sensitive refractive index sensor based on grating-assisted strip waveguide directional coupler is proposed. The sensor is designed using two coupled asymmetric strip waveguides with a top-loaded grating structure in one of the waveguides. Maximum light couples from one waveguide to the other at the resonance wavelength, and the change in resonance wavelength with the change in refract...
We developed various factor models of the Childhood Anxiety Sensitivity Index [Silverman, W. K., Fleisig, W., Rabian, B. & Peterson, R. A. (1991). Childhood anxiety sensitivity index. Journal of Clinical Child Psychology, 20, 162-168] and tested the goodness of fit of the models in an independent sample. Of primary interest was to examine the question that characterized the factor analytic stud...
The insulin sensitivity index (SI) can be used in assessing the risk of developing type 2 diabetes. An intravenous study is used to determine SI using Bergmans minimal model. However, an intravenous study is time consuming and expensive and therefore not suitable for large scale epidemiological studies. In this paper we learn the parameters and structure of several Bayesian networks relating me...
Metal films perforated by nanoholes constitute a powerful platform for surface plasmon resonance biosensing. We find that the refractive index sensitivity of nanohole arrays increases if their resonance is red-shifted by increasing the separation distance between holes. However, an additional sensitivity enhancement occurs if the nanohole sensors are manufactured on low index substrates, despit...
Among the many uses for sensitivity analysis is factor prioritization—that is, the determination of which factor, once fixed to its true value, on average leads to the greatest reduction in the variance of an output. A key assumption is that a given factor can, through further research, be fixed to some point on its domain. In general, this is an optimistic assumption, which can lead to inappro...
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