منابع مشابه
Flotillas of lipid rafts fore and aft.
T effectively combat invading pathogens, immune cells must rapidly switch from roughly spherical resting cells to polarized migratory ones, which then move in a directed fashion to the site of infection. The dramatic metamorphosis of leukocytes into polarized cells and their subsequent migration are two of the most fascinating phenomena in cell biology. Polarization and migration require the sp...
متن کاملSedimentation and Sedimentary Rocks
Sedimentary rocks are one component of the modern threefold classification of rocks. They derive from the lithification of sediments, which are produced in basically two ways: by the mechanical deposition of grains derived from the alteration of other rocks (detrital or clastic rocks), or as chemical precipitates or grains formed organically or inorganically from an aqueous solution. The whole ...
متن کاملElastic Properties of Sedimentary Anisotropic Rocks
In multidisciplinary studies carried out in the Budare Oil Field of the Great Oficina Oil Field, there was difficulty matching well log synthetic seismograms with 2D and 3D seismic data. In addition, the seismically determined depths of reservoir horizons are greater than the well sonic log depths. To examine this discrepancy we conducted an experimental study of dynamic elastic parameters of t...
متن کاملInvestigation of the transmission of fore and aft vibration through the human body.
Understanding the behavior of human body under the influence of vibration is of great importance for the optimal motor vehicle system design. Therefore, great efforts are being done in order to discover as many information about the influence of vibration on human body as possible. So far the references show that the major scientific attention has been paid to vertical vibration, although inten...
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ژورنال
عنوان ژورنال: Nature
سال: 1964
ISSN: 0028-0836,1476-4687
DOI: 10.1038/204212a0