Examples of methylene

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Using cresyl violet and methylene blue staining, a prominent central area was observed in the ventral temporal retina.
Frozen sections (40 mm) were cut tangential to the medial sur face of the lateral gyrus and stained with methylene blue-azure.
The coupling is short range and only occurs between isotopically identical methylene groups.
Fallopian tube patency is diagnosed by laparoscopy and hydrotubation with methylene blue dye.
The active compounds share a common structural motif : a protonatable amine moiety separated from an ionized sulfonate moiety by 2 or 3 methylene groups.
Thus, simple methylene tethers were designed that would link these groups together and maintain the proper distance between the two fragments.
Sediment was extracted initially using methylene chloride to dissolve elemental sulphur, which was then precipitated as copper sulphide on activated copper granules.
Heavy fractions were separated by methylene iodide, mounted on glass slides using epoxy resin, and diamond polished.
The scissoring # band order parameters agreed extremely well with those derived from the methylene stretching bands, but the wagging band progression order parameters, when observable, were slightly lower.
Dark shading indicates the area of allowed positions for the third atom if the methylene protons are stereospecifically assigned.
The affinity of the interaction, as determined by the zero-voltage dissociation constant of the reaction, increases in proportion with the number of methyl or methylene groups in the blocking cation.
The methylene chloride was evaporated to dryness in a stream of nitrogen, and the residue was taken up in a small volume of hexane for chromatography.
Unstacked base pairs are represented in green, while the bases and the sugars presenting stacking interactions in the 3k-direction, via a sugar methylene group, are represented in red.
It is initiated by free-radical attack upon a lipid, resulting in the removal of a hydrogen atom from a methylene group adjacent to a double bond.

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