Biology in Physics. Is Life Matter by Konstantin Bogdanov

By Konstantin Bogdanov

Biology in Physics is an intensive new publication which bridges the space among biology and physics. the purpose is to advertise an interdisciplinary trade of medical details and ideas, so one can stimulate cooperation in examine. The scope of this quantity explores either the thoughts and strategies of biophysics and illustrates the newest advances in our figuring out of some of the particular mechanisms which are utilized by dwelling organisms. This quantity represents a unique attempt to compile the data that will enable a nonbiologically orientated physicist to understand the real position that physics performs in existence sciences.

  • An advent to biophysics for non-specialist
  • Covers the entire vital topices in glossy biophysics
  • Takes account of the newest info rising from biophysical projects
  • Reports on novel healing strategies
  • Presents an advanced-level assessment of mechanisms that keep an eye on a number of procedures in organisms starting from bacterial to whales

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Velocity of Pulse Wave The blood motion across the vessels is a rather complicated process. The wall of the aorta, as well as the walls of all other arteries, is highly elastic: its Young's modulus is 105times smaller than that of metals. Therefore, when blood enters the aorta, the latter starts expanding until the blood inflow stops. After this, the elasticity of the expanded aorta wall, seeking to bring the aorta back to its initial dimensions, squeezes the blood out into the artery section, more distant from the heart (the reverse flow is hindered by the aortic valve of the heart).

During his entire life he combined two professions, that of a practicing physician and of a physicist. Reflection of Pulse Waves Like any waves, the pulse waves in arteries are capable of reflecting from the sites where the conditions of their propagation change. 4(a)). 4(b)). It is possible to estimate the distance between the point of the recorded pressure and the site of branching by measuring the interval between two maxima on the pressure curve and the given velocity of propagation of a pulse wave.

Measuring the strength of the field, the shark can obviously evaluate its speed with respect to the earth. Cartilaginous fish (like a shark) are very sensitive to electric fields, and their reaction is demonstrated in the relation to the gradients of the potential below 5 nV/cm in the frequency range from 0 to 8 Hz. A number of special experiments were carried out where nocturnal ocean predators were led to an electrical model of a prey which established an electric field with the gradient of 5 nV/cm.

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