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In this review , we focus specifically on the role of the protein-membrane surface and the surface-bulk water interface in the dynamics of proton delivery to these proton-transfer pathways . These delays can be converted into integrated water vapor ( if surface pressure data or estimates are available ) and total electron content ( TEC ) , along each GPS ray path . Expecting him to rise to the surface , she leaped in when he did n't surface and pulled him to the shaded bank , resisting the strong pull of the water 's flow . The cutter 's mate should come with a set of feet that plug into the Morton surfaces and once those are removed there should be small rubber feet that will grip a workbench surface . Winter snow reflection in the boreal forest : As yet , we have little useful surface and airborne data to help us understand how the snow-covered forest intercepts and reflects / emits incoming solar and longwave radiation .