Node region

I Involvement of a single lymph node region of lymphoid... 

III Involvement of lymph node regions or structure on both... 

Lymph node—Region of lymphoid tissue along lymph vessels that filters harmful antigens from the blood and some tissues. 

Lymph nodes, neck - enlarged Lymph nodes, regional - enlarged Mentation - confusion Mentation - weakness (malaise)... 

Stage I Involvement of a single lymph node region or structure (I) or of a single extralymphatic organ or site (U)... 

Stage II Involvement of two or more lymph node regions on the... 

Figure 11.13 An analogy between light waves and atomic wave functions. When light waves undergo interference, their amplitudes either add together or subtract. A, When the ampiitudes of atomic wave functions [dashed lines) are added, a bonding moieoular orbitai (MO) results, and electron density [red line] increases between the nuclei. B, Conversely, when the amplitudes of the wave functions are subtracted, an antibonding MO results, which has a node (region of zero electron density) between the nuclei.

Fig. 23-7. A femoral bubo (a), the most common site of an erythematous, tender, swollen, lymph node in patients with plague. This painful lesion may be aspirated in a sterile fashion to relieve pain and pressure it should not be incised and drained. The next most common lymph node regions involved are the inguinal, axillary (b), and cervical areas. Bubo location is a function of the region of the body in which an infected flea inoculates the plague bacilli. Photographs Courtesy of Ken Gage, Ph.D., Centers for Disease Control and Prevention, Fort Collins, Colo.

Modise, T., et al. Experimental measurement of the saddle node region in a distillation column profile map by using a batch apparatus. Chemical Engineering Research and Design, 2007, 85(1) 24 30. 

The region of the primitive streak embryo (stages 3-4) that contributes to the somites lies in the most anterior (cranial) two thirds or so of the primitive streak and in the ectoderm to either side of this. By stage 4 -5, some of the somite progenitors have already left the streak and lie in the middle layer next to the anterior streak and gradually migrate cranially as more cells are added from the streak and node regions. 

A number of ionic currents have been described in single pacemaker cells from the sinus node region (15). In contrast to atrial and ventricular cells. 

This model assumes that the electron behaves as a standing wave (wave-particle duality) and is subject to boundary conditions similar to those applied to the tension waves of a violin string fixed at both ends. The standing waves have nodes (regions of no vibration or zero electron density) and antinodes (regions of maximum vibration and maximum electron density). 

In Chap. 12 we will study the global bifurcations of the disappearance of saddle-node equilibrium states and periodic orbits. First, we present a multidimensional analogue of a theorem by Andronov and Leontovich on the birth of a stable limit cycle from the separatrix loop of a saddle-node on the plane. Compared with the original proof in [130], our proof is drastically simplified due to the use of the invariant foliation technique. We also consider the case when a homoclinic loop to the saddle-node equilibrium enters the edge of the node region (non-transverse case). 

The general setting of the problem of global bifurcations on the disappearance of a saddle-node periodic orbit is as follows. Assume that there exists a saddle-node periodic orbit and that all trajectories which tend to this periodic orbit as i — 00 also tend to it as -f-oo along some center manifold. In other words, assume that the unstable manifold of the saddle-node returns to the saddle-node orbit from the side of the node region. In this case, either ... 

If A > 0, then there is a strongly unstable manifold which divides the neighborhood of O into a node region where all trajectories diverge from O, and a saddle region where there is a single stable separatrix entering O as t 4-00 and the other trajectories bypass O. 

We can now describe the behavior of trajectories in a small neighborhood of the periodic trajectory L to which the fixed point O of the Poincare map corresponds. In the two-dimensional case the behavior of trajectories is shown in Fig. 10.2.4, and a higher-dimensional case in Fig. 10.2.5. The invariant strongly stable manifold Wff (the imion of the trajectories which start from the points of Wq on the cross-section) partitions a neighborhood of L into a node and a saddle region. In the node region all trajectories wind towards L... 

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