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ELECTRON MICROSCOPY AND ELECTRON PROBE ANALYSIS OF MITOCHONDRIAL CATION ACCUMULATION IN SMOOTH MUSCLE
The contractile responses to barium and the ultrastructure and ionic composition of mitochondria were studied in vascular smooth muscle. In normal rabbit portal anterior mesenteric vein (PAMV) andExpand
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Amalgam tattoos: Light and electron microscopy and electron‐probe micro‐analysis
A common tattoo occurring in the mouth is caused by the insertion of amalgam filling material into the soft tissues. Fifteen amalgam tattoos were examined. Amalgam or its derivatives were foundExpand
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Application of scanning electron microscopy to x-ray analysis of frozen- hydrated sections. I. Specimen handling techniques
X-ray microanalysis of frozen-hydrated tissue sections permits direct quantitative analysis of diffusible elements in defined cellular compartments. Because the sections are hydrated, elementalExpand
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A chlorine-free embedding medium for use in X-ray analytical electron microscope localisation of chloride in biological tissues
SummaryA number of embedding media were checked for chlorine content by means of X-ray analytical electron microscopy (EMMA-4 electron microscope and KEVEX energy dispersive analyser). It was shownExpand
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Fine structure and x-ray microanalysis of mineralized concretions in the malpighian tubules of the housefly, Musca domestica.
The epithelium and the lumen of the Malpighian tubules of the housefly contains mineralized dense bodies called concretions. The morphological characteristics, mode of origin, nature of theExpand
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Application of scanning electron microscopy to x-ray analysis of frozen- hydrated sections. II. Analysis of standard solutions and artificial electrolyte gradients
New specimen handling and analytic techniques for the application of x- ray microanalysis to studies of cell and organ biology have been recently described (Saubermann et al., 1981, J. Cell Biol.Expand
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DYNAMICS OF THE HISPID FLAGELLUM OF OCHROMONAS DANICA
High speed cinephotographic techniques were used to determine the pattern of fluid flow about the hispid flagellum of Ochromonas danica and to investigate the behavior of this flagellum in media ofExpand
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ASSOCIATION OF CALCIUM WITH MEMBRANES OF SQUID GIANT AXON
Giant axons from the squid, Loligo pealei, were fixed in glutaraldehyde and postfixed in osmium tetroxide. Calcium chloride (5 mM/liter) was added to all aqueous solutions used for tissue processing.Expand
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Divalent cation affinity sites in Paramecium aurelia
Sites with high calcium affinity in Paramecium aurelia were identified by high calcium (5 mM) fixation and electron microscope methods. Electron-opaque deposits were observed on the cytoplasmic sideExpand
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