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The mucosa of the small and large intestine of goat fetuses exhibited villi which had disappeared after the 32.5-cm curved crown rump (CVR) stage. At places, the stratified epithelial lining persisted among the normal columnar epithelium with goblet cells. The concentration of goblet cells increased with age, while the thickness of the epithelium decreased. The crypts of Lieberkühn were tortuous at the base. Brunner's glands appeared at the 14.2-cm CVR stage. Peyer's patches appeared at the 24.5-cm CVR stage in the ileum. The muscularis mucosae differentiated in the large intestine in group II (16.2- to 24.5-cm CVR length) and progressed caudocranially. The striated border of the intestinal epithelium presented with alkaline phosphatase activity; this border and the goblet cells also stained for mucin. Glycogen was demonstrable in the epithelium with greater concentrations in the duodenum and jejunum in group I (11.5- to 14.6-cm CVR length), and in the ileum and large intestine in group III (30.8- to 39.5-cm CVR length). 相似文献
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G. L. Tiwari 《Hydrobiologia》1972,40(2):177-182
Summary Morphology and reproduction of Chroococcidiopsis mysorensis sp. nov., isolated from enrichment cultures of paddy field soils of Naganahalli (India), have been described. The taxonomic status of the genus Chroococcidiopsis has been discussed suggesting it to be placed under the order Chroococcales. 相似文献
255.
Three herbicides, Benthiocarb, 2,4-D and Fluchloralin were evaluated for their effect on leaf surface microflora of potato.
In general, the application of herbicides resulted into a drop in the microbial population. Throughout the study herbicide
treated leaves harboured less population compared to the untreated ones. 相似文献
256.
Ellipticine compounds, derivatives of pyrido-(4-3b) carbazole are used in the human cancer therapy. Most of these drugs interact
directly with DNA molecule. CNDO method, alongwith second order perturbation theory and multicentered-multipole approxiation
have been used to compute intermolecular interaction energies of ellipticine with DNA ase pairs (GC and AT) in both normal
and inverted cases. An attempt has been made to correlate the drug-nucleic acid interactions for ellipticine to locate site
of drug action and binding pattern on the basis of intermolecular forces 相似文献
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Kumar Sumit Tiwari Rajeev Kozlov Sergei Rodrigues Joel J. P. C. 《Cluster computing》2022,25(1):417-431
Cluster Computing - Content-centric networking (CCN) has emerged as a promising future Internet architecture that brings effective content retrieval mechanism. In CCN, the contents are accessed... 相似文献
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Administration of IκB‐kinase inhibitor PS1145 enhances apoptosis in DMBA‐induced tumor in male Wistar rats 下载免费PDF全文