نتایج جستجو برای: culture disintegration
تعداد نتایج: 289678 فیلتر نتایج به سال:
N a table showing the existing atomic nuclei it is observed that many groups of isobars occur, the term isobar referring to nuclei of the same atomic weight but different atomic number. It is unreasonable to assume that all isobars have exactly the same energy; one of them therefore will have the lowest energy, the others are unstable. The question arises why the unstable nuclei are in reality ...
The disintegration of mesotrons at the end of their range was investigated by means of an improved arrangenxent of the type already described by the author. The absorption of a mesotron by a block of aluminum or iron is recorded by a system of coincidence and anticoincidence counters. Another system of counters and circuits registers the delayed emission of a particle, which is interpreted as t...
Sequential alterations in the ultrastructure of blood platelets observed during the clotting of human platelet-rich plasma are described, with emphasis on disintegration of the platelet. As the clotting reaction proceeds, aliquots of citrated and recalcified citrated plasma are fixed by adding buffered OsO(4). After recalcification a lag period of about 10 minutes is followed by an interval of ...
We recently demonstrated that addition of the divalent cation Mg++ to demembranated cilia causes the dynein arms to attach uniformly to the B subfibers. We have now studied the dose-dependent relationship between Mg++ or Ca++ and dynein bridging frequencies and microtubule sliding in cilia isolated from Tetrahymena. Both cations promote efficient dynein bridging. Mg++-induced bridges become sat...
Many kinds of rapidly disintegrating or oral disintegrating tablets (RDT) have been developed to improve the ease of tablet administration, especially for elderly and pediatric patients. In these cases, knowledge regarding disintegration behavior appears important with respect to the development of such a novel tablet. Ordinary disintegration testing, such as the Japanese Pharmacopoeia (JP) met...
BACKGROUND AND PURPOSE Chronic cerebral hypoperfusion can lead to ischemic white matter injury resulting in vascular dementia. To characterize white matter injury in vascular dementia, we investigated disintegration of diverse white matter components using a rat model of chronic cerebral hypoperfusion. METHODS Chronic cerebral hypoperfusion was modeled in Wistar rats by permanent occlusion of...
Rationale: Table compression process has a profound effect on different quality attributes of table manufacturing process such as appearance, content uniformity, hardness, thickness, friability, Disintegration time and Dissolution time. Among all the table compression parameters, feeder speed, precompression, main compression forces and Turret speed have a substantial effect on tablet propertie...
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