نتایج جستجو برای: stereological method
تعداد نتایج: 1631664 فیلتر نتایج به سال:
A new form of the discrepancy principle for Poisson inverse problems with compact operators is proposed and discussed in relation to various other proposals. It shown that filter-induced spectral regularization a priori chosen smoothing parameter produces estimators are rate-minimax under source conditions on estimated function. With used posteriori choice parameter, solutions consistent (in pr...
The aim of the present study was stereological evaluation of testes of azoospermic animal model using busulfan in rat. Three groups of male adult rats were used in this study. The first group was injected by single dose of busulfan (10 mg kg-1) and their testes were removed on day 35 post injection. The second group received double doses of busulfan with 21 days interval and their te...
A quantitative analysis of the volumes, surface areas, and dimensions of the ultrastructural components in the soleus muscle fibers of the guinea pig was made by using point counting methods of stereology. Muscle fibers have structural orientation (anisotropy) and have spatial gradients of the structures within the fiber; therefore the standard stereological methods were modified where necessar...
A stereological model which provides detailed quantitative information on the structure of the fasted, nonstimulated gland has been developed for the guinea pig pancreas. The model consists of morphologically defined space and membrane compartments which were used to describe the general composition of the tissue and the specific components of exocrine cells. The results are presented, where ap...
Stereological principles provide efficient and reliable tools for the determination of quantitative parameters of tissue structure on sections. Some principles which allow the estimation of volumetric ratios, surface areas, surface-to-volume ratios, thicknesses of tissue or cell sheets, and the number of structures are reviewed and presented in general form; means for their practical applicatio...
The Saanen goat is known as the greatest milk producer among small ruminat breeds. However, its morphometric features still remain unclear. Therefore, present work aimed to investigate functional anatomy of upper and lower jaws well volumetric properties male female for clinical applications. heads 20 adult animals (10 males 10 females) were included. Totally, 22 parameters measured on three di...
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