... Gradient of Molecules in Avian Retina with Dorsoventral Polarity ... Gradient of Molecules in Avian Retina with Dorsoventral Polarity Marshall Nirenberg pursued many lines of research in ...

... rapid Rheotome, or current interrupter; a Commutator, or polarity changer; Scales, by which the primary and secondary ... for 40 cells (electing sing- ly without shock), Polarity Changer, Automatic Interrupter, Cut Out, Gal- vanoscope, necessary ...

... under the influence of the same kind of polarity pre- viously induced. This forced condition never reaches ... exactly equal in amount in contrary directions. " The polarity of the arrangement, when in a state of ...

... more being relied upon. Should the stricture bear evidence of being due to a malignant groAA'th, the fact that the author's electrode bulbs are of zinc comes in play, since Avhen Avell amalgamated the polarity of the instrument may be changed to positive ...

... but of a more complicated, higher order of polarity. The knowledge of polar motion is only commencing. ... of common vision—the cause of the deviation, polarity, demonstrably operative, at least to some extent, in ...

... in so many cases ; for, besides the negative evidence of the usefulness of this practice, there is this objection to it—that opium given in large doses tends to call forth that very exaltation of the polarity of the nervous system which Ave desire to ...

... exerting enough pressure to change the external shell. Evidences of this vibration are the conductance of heat and sound through solids, electrical charge, and if it is a magnetic substance, the ability to maintain its magnetic polarity during division. Let us now suppose this solid ...

... as their breadth, and there is a decided polarity exhibited in their arrangement: that is, their longer ... that have been broken off, and exhibits decided polarity ; so as to form very fine specimens of ...

... investing the earth, and to the ponderefacient impulses. ... reach, we find abundant evidence to warrant the belief, that they too, though ...

... of fact, that, There is exactly the same evidence that sensa- tion or perception and volition are properties of the nervous apparatus of the human system, that there is of contractility being a properly of mus- cular fibre, or polarity the property of a particle of pyrites or ...