289 research outputs found
Immunohistochemical and Ultrastructural Analyses of Cytoplasmic Blood Plasma Inclusions of Rat Hepatocytes
In the present study, we investigated the histological, immunohistochemical and
ultrastructural characteristics of cytoplasmic blood plasma inclusions that spontaneously
occurred in a rat liver. Histologically, a number of cytoplasmic inclusions were observed
in the liver of an 8-week-old female SD rat. These inclusions were strongly positive for
PAS staining and resistant to diastase digestion. Immunohistochemical analyses revealed
that these inclusions were positive for albumin and IgG; however, most of them were
negative for LAMP-1 and LAMP-2. Ultrastructurally, the inclusions were surrounded by
limiting membranes and composed of moderately electron dense, homogenous materials. These
characteristics described here represent valuable information for pathological examination
in toxicity studies
Information metric, Berry connection, and Berezin-Toeplitz quantization for matrix geometry
We consider the information metric and Berry connection in the context of noncommutative matrix geometry. We propose that these objects give a new method of characterizing the fuzzy geometry of matrices. We first give formal definitions of these geometric objects and then explicitly calculate them for the well-known matrix configurations of fuzzy S2 and fuzzy S4. We find that the information metrics are given by the usual round metrics for both examples, while the Berry connections coincide with the configurations of the Wu-Yang monopole and the Yang monopole for fuzzy S2 and fuzzy S4, respectively. Then, we demonstrate that the matrix configurations of fuzzy Sn (n=2, 4) can be understood as images of the embedding functions Sn→Rn+1 under the Berezin-Toeplitz quantization map. Based on this result, we also obtain a mapping rule for the Laplacian on fuzzy S4
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