Behind the layers of cell researchColin Nickerson
The conventional flat plate model used to relate diffusion resistance to the thickness of the unstirred layer was shown to be inappropriate for microorganisms. Alternate models were developed, and they predict that diffusion resistance decreases as cell size decreases and that it depends on the shape...
Emiliania huxleyi is a marine unicellular alga that is covered by one or several layers of coccoliths (discs of crystalline calcium carbonate) or of organic scales. Immediately proximal to these layers are several membranous layers that surround the protoplast. In this study an ultrastructural analysis...
XXXV. — On the Primitive Cell-layers of the Embryo as the Basis of Genealoyical Classification of Animals^ and on the Origin of Vascular and Lymph Systems'^ . By E. Ray Lankester, M.A., Fellow and Lecturer of Exeter College, Oxford. A "natural" classification in modern zoology — ...
The propylene polymer of the base layer has been peroxidically degraded, its degradation factor A being in the range of about 3 to about 10. The heat-sealable olefin polymer of the outer layers is an ethylene-propylene copolymer having an ethylene content in the range of about 2 to about ...
Neuropathic pain induces changes in neuronal excitability and synaptic connectivity in deep layers of the anterior cingulate cortex (ACC) that play a central role in the sensory, emotional and affective consequences of the disease. However, how this impa
Catalyst layers in proton exchange membrane fuel cells consist of platinum-group-metal nanocatalysts supported on carbon aggregates, forming a porous structure through which an ionomer network percolates. The local structural character of these heterogen
Here we addressed this conundrum by using a sensitive cell enrichment method to show that polyclonal CD4+ T cells responded to food peptides, including a natural one from gliadin, by proliferating weakly in secondary lymphoid organs of the gut–liver axis owing to the action of regulatory T ...
The culture system, in which a marrow-derived adherent cell population, established in vitro, exerts a long-term promoting influence on proliferation of haemopoietic cells, is reproduced. Essential parameters of the system are investigated; it is confirmed that the system is critically dependent on ...
Mammalian neocortex is a highly layered structure. Each layer is populated by distinct subtypes of principal cells that are born at different times during development. While the differences between principal cells across layers have been extensively stud