The submicroscopic organization of the retinal rods of the rabbit has been studied with high resolution electron microscopy in thin longitudinal and cross-sections. The outer rod segment consists of a stack of flattened sacs or cisternae each of them limited by a thin homogeneous membrane of about 30 A. The membrane of the rod sacs is attached to the surface membrane and is also in continuity w...

We used the NADPH-diaphorase histochemical method as a potential marker for nitric oxide synthase (NOS)-containing nerve fibers innervating the pineal gland of the sheep. Nerve fibers containing NADPH-diaphorase activity provide dense innervation of the sheep pineal gland. The nerve fibers were located in the pineal capsule, in the connective tissue septae separating the lobull of the gland, an...

Studies of Thalamocortical and Commissural the Rat Somatic Sensory Cortex S. P. WISE AND E. G. JONES Department ofAnatomy and Neurobiology, Washington University School of Medicine, St. Louis, Missouri 631 I0 Autoradiographic, axonal degeneration, and horseradish peroxidase fiber tracing methods were employed to investigate the organization, development and potential plasticity of the thalamoco...

The hollow, cylindrical shape of many soft-bodied animals results in nonuniform circumferential strain across the muscular body wall as the body diameter changes. This could complicate reinforcement with connective tissue because fibers in one region of the body wall must accommodate greater strain than those in other regions. We investigated this issue in the mantle of the squid Doryteuthis pe...

Abstract There are plant cuticle and complex cell walls on the outer surface of cotton stalk bark (CSB), which reduce efficiency liquid penetration CSB. To increase permeability liquids, these barriers need to be broken. Cellulase can selectively hydrolyze cellulose into glucose, its action conditions mild. Therefore, cellulase treatment is one excellent ways break CSB permeation barrier. This ...

background: the differences between marginal gingiva and interdental papilla may be due to variation in the molecular composition of these two different anatomical structures. the aim of this study was to evaluate the staining intensity of fibronectin in human marginal gingiva and interdental papilla. materials and methods: in a prospective analytical study, 16 healthy subjects needing crown le...

The product of the spermatid-specific rat SPAG4 gene interacts specifically with the major 27-kDa outer dense fiber protein ODF27 in elongating spermatids. In this study we isolated the human homolog of the spermatid-specific rat SPAG4 gene and mapped it by fluorescence in situ hybridization to chromosome 20q11.2.

Localization of substance P (SP)-like immunoreactivity in the anterior eye segment of the squirrel was examined immunohistochemically. The present study demonstrates a dense network of SP-positive fibers in the ciliary body, particularly in the muscle layers, and several SP-positive fibers in the iris, in addition to scattered SP-positive fibers in the cornea. These facts strongly suggest that ...

An approach for preserving the mode field diameter (MFD) in fiber tapers is demonstrated. The approach utilizes concentric dual-core fibers, which couple light from an inner core to an outer core through a taper. Fibers with a 6 μm MFD feedthrough and a 15 μm polarization maintaining feedthrough are demonstrated experimentally. Simulations of the MFD in the tapered dual-core fibers are also pre...