![]() ![]() Therefore, cells in the isochoric frozen organism do not dehydrate, and the tissue maintains its morphological integrity. An explanation for the observed survival during isochoric freezing is the thermodynamic modeling supported hypothesis that, in the isochoric frozen solution the extracellular osmolality is comparable to the cell intracellular osmolality. It is known that the mechanism of cell damage in an isobaric system is the freezing caused increase in extracellular osmolality, and, the consequent cell dehydration. We have recently shown that, a living organism, which succumbs to freezing to -4 Â☌ in an isobaric thermodynamic system (constant atmospheric pressure), can survive freezing to -4 Â☌ in an isochoric thermodynamic system (constant volume). Năstase, Gabriel Lyu, Chenang Ukpai, Gideon Åžerban, Alexandru Rubinsky, Boris Isochoric and isobaric freezing of fish muscle. Numerical estimates of the cross-section are obtained in the kinematic region, where it is possible to expect the manifestation of bound isobar-nuclear states. We consider the properties of the spectator mechanism of isobar production using the example of the reaction 16O(γ,π‑pn)14O. The two-particle transition operator for nuclei is obtained by the S-matrix approach. The reaction mechanism is studied within the framework of the ΔN-correlation model, which considers the isobar and nucleon of the ΔN-system produced in the nucleus at the virtual NN → ΔN transition to be in a dynamic relationship. We present an analysis of the spectator mechanism of Δ- isobar production in the pion photoproduction on nuclei with the emission of two nucleons. Spectator isobar production in the A(γ,Ï€NN)B reaction Furthermore, this property holds for energies above breakup and also in the presence of resonances in the sub-amplitudes. Using a Bethe-Salpeter Ansatz for the latter, we derive a relativistic three-dimensional scattering equation that manifestly fulfills three-body unitarity and two-body unitarity for the sub-amplitudes. Here, we start from the 3->3 scattering amplitude for spinless particles, which contains an isobar-spectator scattering amplitude. The particle exchange model of hadron interactions can be used to describe three-body scattering under the isobar assumption. Three-body unitarity with isobars revisited Predictions of this improved model are compared with experimental data and with the predictions of other models. The isobar model of Bergia, Bonsignori, and Stanghellini for single ceramic materia production in ceramic materia -N collisions is shown to account for the majority of the observed mass spectra and the ratio of ceramic materia / sup 0/ to ceramic materia /sup +/ production in ceramic materia /sup +/-p collisions fr3350 Mev to 1 Bev when the p-wave decay of the isobar and requirements of Bose statistics are included. ISOBAR MODEL ANALYSIS OF SINGLE PION PRODUCTION IN PION-NUCLEON COLLISIONS BELOW 1 Bev
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