Some Modifications of Holmes ' s Silver Method for Insect Central Nervous Systems

P 47: Occupational Toxins and Neuroinflammation

There were many occupational toxins for central nervous system and peripheral nervous system such as toxic and heavy metals. The aim of this study was introduction of occupational toxins with neurological effects and inflammatory effects specially. It is a review article. Researcher found the important data about the occupational toxins for nervous systems. Author searched in related journals, ...

A study of silver degeneration methods in the central nervous system.

A number of reduced silver methods have been used for the demonstration of degenerating axons and their terminations within the central nervous system. The present study is an attempt to evaluate the relative potentialities of the two methods which the authors have found most useful, namely the Gless and Nauta techniques. Much of the literature dealing with silver impregnation methods, as appli...

The penetration of acetylcholine into the central nervous tissues of an insect (Periplaneta americana L.).

The precise physiological role of acetylcholine in synaptic transmission in the insect central nervous system has been a subject of some speculation and controversy. One of the main difficulties involved in postulating the existence of a conventional cholinergic system in the insect central nervous system has been the relative insensitivity of intact ganglia to applied acetylcholine solutions (...

The staining of synaptic terminals within the central nervous system by Rio-Hortega's double impregnation silver method.

Some Modifications to Calculate Regression Coefficients in Multiple Linear Regression

In a multiple linear regression model, there are instances where one has to update the regression parameters. In such models as new data become available, by adding one row to the design matrix, the least-squares estimates for the parameters must be updated to reflect the impact of the new data. We will modify two existing methods of calculating regression coefficients in multiple linear regres...