AIMS To assess the reliability of nodal staging in colorectal carcinomas (CRCs) when only lymph nodes close to the tumour are recovered and examined histologically. METHODS Lymph nodes from CRC resection specimens were recovered into two fractions: one from around the tumour and the 3 cm sidelong bowel segment associated with it in the proximal and distal directions, and another from the rema...

The author has been using post-nodal segments of early chick blastoderms as an experimental system to study early morphogenesis and differentiation. The segment is produced by a transverse cut at about 0-4 mm from the primitive pit and is known for its very limited potencies in chorio-allantoic transplantation or in culture, in contrast to anterior parts containing Hensen's node (Hunt, 1931; Wi...

A36-year-old man was admitted to our hospital because of exertional dyspnea and syncope. The ECG showed complete A-V block (Figure 1A), and a pacemaker was implanted. Although his chest X-ray did not detect bilateral hilar lymph node enlargement, his acute clinical course with complete A-V block suggested cardiac sarcoidosis. Thus, we performed thoracic computed tomography, which revealed multi...

in this paper, the asymptotic representation of the corresponding eigenfunctions of the eigenvalues has been investigated. furthermore, we obtain the zeros of eigenfunctions.

The natural tragacanth gum, the sap of Astragalus gummifer, has been successfully used as a gelling agent in tissue culture media for in vitro shoot development and proliferation of miniature rose and carnation. Shoot development of nodal segments excised from greenhouse grown plants, was investigated on MS medium solidified with either 2.5, 3.0, 3.5 and 4.0% tragacanth or 0.8% agar as control....

Nodes of Ranvier are specialized axonal domains formed in response to a glial signal. Recent research advances have revealed that both CNS and PNS nodes form by several overlapping molecular mechanisms. However, the precise nature of these mechanisms and the hierarchy existing between them is considerably different in CNS versus PNS nodes. Namely, the Schwann cells of the PNS, which directly co...

In this study, inverse nodal problem is solved for the p-Laplacian operator with two potential functions. We present some asymptotic formulas which have been proved in [17,18] for the eigenvalues, nodal points and nodal lengths, provided that a potential function is unknown. Then, using the nodal points we reconstruct the potential function and its derivatives. We also introduce a solution of i...