Cellular subdivision

For the cellular subdivision in Figure 3.2 the following incidence matrices are obtained ... 

Figure 5.2 A cellular subdivision based on the local convexity shape domains of the MIDCO surface of Figure 5.1 is shown.

Part III lays the groundwork for understanding the brain as the physical basis of consciousness. It describes the regional, cellular, and molecular mechanisms that may contribute to alterations of conscious states. Chapter 6 begins to tease apart the major subdivisions of the brain-mind and to describe their interaction in normal conscious state alteration. In chapter 7, we meet the neuromodulatory chemical systems that appear to be causative of those alterations. 

A bioreactor is a vessel in which biochemical transformation of reactants occurs by the action of biological agents such as organisms or in vitro cellular components such as enzymes. This type of reactor is widely used in food and fermentation industries, in waste treatment, and in many biomedical facilities. There are two broad categories of bioreactors fermentation and enzyme (cell-free) reactors. Depending on the process requirements (aerobic, anaerobic, solid state, immobilized), numerous subdivisions of this classification are possible (Moo-Young, 1986). 

Intense investigations on the cellular and molecular chemical neuroanatomy of the NAc, as well as on its connections, neuropharmacology and electrophysiology, have identified two main sub territories, namely the shell and the core (initially identified by Herkenham et al., 1984 Zaborsky, 1985) a third subdivision, represented by the rostral pole, has also been recognized (see for review Kelly, 1999 Meredith, 1999 Zham, 1999, 2000). The organization in subregions has led to theories on a modular function of the NAc as a complex of neuronal ensembles (Pennartz et al., 1994). The shell and the core of the NAc have been demarcated also in primates, and calbindin is the most consistent marker for the shell across species (Haber, 1999). 

This cellular structure, closely related to the nucleus, consists of two components a membrane and small granula. With the electron microscope a three-dimensional network of tubules and globules with a diameter of 100-150 m/i can be distinguished. The interior (cisternae of the ergastoplasm) of these structures is encased in a membrane, on the outside of which are attached small granula with a diameter of 15 m/j. The granula are the ribosomes, a subdivision of the microsomes (cf. Fig. 47 and 48). The interior appears to be connected with the perinuclear space, and sometimes also with the extracellular space (through pores in the cell surface). The endoplasmic reticulum is very well developed in tissues with active protein synthesis, e.g. in exocrine cells of the pancreas. 

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