However, studies suggest that these assays may be useful for HIV incidence determination when used in combination along with non-serologic biomarkers, such as HIV viral load or CD4 cell count [6].
The quality of the segmentation directly impacted the ability to produce reliable culture characteristics measurements, as highlighted by a 2.5-fold improvement in the precision of image confluency determination when using a post hoc halo correction.
The Arthritis Index provided enhanced quantitative sensitivity in assessing the level of joint degeneration compared to either histologic scoring or cartilage area determination alone; when using the Index, between 29% and 43% fewer samples are needed to establish statistical significance in studies of murine arthritis.
The present method when used for determination of Se (IV) in aqueous samples gave the following results (Table 2).
Future hardware should aim at a higher frame rate of at least 60 frames per second in order to avoid aliasing effects in the determination of microcirculatory flow velocity when used in combination with stimulation tests such as the topical application of vasodilators.
When used for structure determination the eluted proteins were loaded on a HiTrapS FF column from GE Healthcare (Piscataway, NJ) and eluted with a linear NaCl gradient.
It has been stated that GC-based techniques in particular (such as GC-ECD, GC flame ionization detection, or GC-MS), when used for trichothecene determination, are prone to signal enhancement even when clean-up is performed [ 20, 21].
In our experience, some commercially available forms of APRIL, when used as reference standards, yield inaccurate (high) or imprecise determinations of native APRIL levels in sera (unpublished observations).
Thus, accurate determination of the location of lesions and efficacy of evaluation are impaired when using US only.
Hence, we suggest that TLC is not to be used as complementary to HPLC but as alternative method for free 68Ga determination, even though when using 1M sodium acetate/methanol (50/50) the results of free 68Ga were consistent with HPLC.
