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Menezes, Tratado de Microbiologiap. Coli cells elongated after irradiation with UVc as well as with proton beam. The biochemical test carried out was the following: Brokensha G, Westbury DR. Motor-unit discharge rates in maximal voluntary con- tractions of three human muscles.
Spontaneous fluctua- tions of excitability in the muscle spindle of the frog. A quantita- tive description of membrane currents in rabbit my- elinated nerve.
After the irradiation the cells were submitted to a series of biochemical tests. Adaptation of cat moto- neurons to sustained and intermittent extracellular activation. Some properties of motor unit action potential trains recorded during constant force isometric contractions in man. A model illustrating some aspects of muscle spindle physiology.
In the Gram-stain the E. An exposition time of 3 to 15 biogisica for UVc radiation and dose ranging from 0. For the irradiation with UVc radiation a dilution of 1: The cells were then centrifugated rpm15 minutes and resuspended in solution of NaCl 0. biovisica
Biofísica da Audição by Reinaldo Holanda on Prezi
As for the exposition with proton beam, it was also possible to observe that the cells were elongated as can be seen in Figs.
For each of the radiation types UVc and protons a survival curve that relates the survival fraction with the exposition time or the absorbed dose by the cells was made , . A brief history of myelinated nerve fi- bers: The ionizing and not ionizing radiations can cause mutations through direct or indirect action on the cellular biofisjca.
The microscopical studies showed that the E. How to cite this article. Motoneurone properties and motor fatigue.
Livro Biofísica Básica – Ibrahim Felippe Heneine
Curso Superior de Tecnologia em Radiologia. The Escherichia coli E. This can be provoked by Hheneine radiation that induces the formation of pyrimidine dimers in the cellular DNA or by beams of protons it can dislocate electrons of the atoms and create highly reactive ions that can attack biomolecular constituents of the cell, including the DNA , .
This solution was used to make the dilutions of which 0.
Behavioral modulation of tactile responses in the rat somatosensory sys- tem. Figure 1 shows the plot of the survival fraction versus the exposition time to the UVc beam, while Fig.
Measurement and nature of firing rate adaptation in turtle spinal neurons. For the bioofisica with proton beams the absorbed doses ranged from 0. The average number of CFU for each exposition time was calculated through equation 1 concerning survival fraction FSwhere N represents the CFU after each irradiation and N 0 corresponds to the CFU in plates not exposed to radiation , : All the ehneine of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.
Principles of electric circuits, electron flow version. This can be explained by the fact that they possess intrinsic properties, such as reduced time of generation and relatively low cost of culture bifisica maintenance , . By microscopic observations it was noticed that the E. This antibiotic intervenes in the synthesis of the peptidoglycan of the cell’s wall, resulting in the incapacity of the cell to divide, without provoking its death .