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Fine structure and distribution of lymphatic vessels in the human dental pulp: a study using an enzyme-histochemical method (1997)

Matsumoto, Yuushi ; Kato, Seiji ; Miura, Masahiro ; [et al.]

Springer

Cell & tissue research 288 (1997), S. 79-85

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ISSN: 1432-0878

Keywords: Key words: Lymphatic vessels ; Blood vessels ; Dental pulp ; 5′-nucleotidase ; Alkaline phosphatase ; Enzyme histochemistry ; Human

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Abstract. The existence of lymphatic vessels in the human dental pulp and their distribution were established by light and electron microscopy using an enzyme-histochemical method. The distinction between lymphatic and blood vessels was made by light microscopy on cryostat sections of undecalcified and decalcified teeth using 5′-nucleotidase(5′-Nase)-alkaline phosphatase double staining. On the tissue surface, 5′-Nase-positive lymphatic vessels were highlighted with good contrast and resolution by backscattered electron imaging using scanning electron microscopy. By transmission electron microscopy, dense granular precipitations resulting from the 5′-Nase reaction were seen on the luminal surface of the lymphatic endothelial cells as well as in the area at the basal side, but were absent in the blood vessels. These lymphatic vessels were more numerous in the central part than in the peripheral odontoblastic layer.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s004410050794

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A transient finite element analysis of natural convection around a horizontal hot cylinder (1983)

Miyauchi, Yasuyuki ; Masuda, Michio ; Shimizu, Masatsugu

Chichester : Wiley-Blackwell

International Journal for Numerical Methods in Fluids 3 (1983), S. 429-443

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ISSN: 0271-2091

Keywords: Natural Convection ; Finite Element Method ; Upwind Finite Element ; Cylinder ; Engineering ; Engineering General

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: This paper presents an advanced method for a 2-dimensional analysis of transient natural convection by finite element method. The present method, based on stream function - vorticity formulation, could get rid of numerical errors and constraint of perpendicular mesh subdivision, since we excluded a finite difference approximation of vorticity on no-slip boundaries. A considerable effect of upwind weighting function was examined. The method was successfully applied to a problem of natural convection around a horizontal hot cylinder.

Additional Material: 8 Ill.