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The tectonosphere and formation conditions of the Mozambique Ridge are considered. The Mozambique Ridge is located in the southwestern part of the Indian Ocean between the Natal and the Mozambique Mesozoic Basins. The way how the ridge formed remains debatable. The anomalous structure of the crust of the Mozambique Ridge can be explained either by underplaying - thickening of the oceanic crust from below due to magmatism, or by stretching and thinning of the continental crust. Based on gravitational and magnetic field anomalies, seismotomography and other geological and geophysical information, density modeling was carried out along four profiles. Physical modeling determined the conditions of formation of the Mozambique Ridge. It formed due to the splitting of the African-Antarctic continent, the presence of structural heterogeneities in the lithosphere of the African continent and the influence of the Karoo plume.

Tubular Electron String Ion Source (TESIS) – improved version of Electron String Ion Source (ESIS) aiming for nearly 200-fold increase in ion yield – is under development at JINR. TESIS advantages over ESIS are discussed and their characteristics are compared. Basic scheme of TESIS operation is presented. One of the crucial processes in TESIS – off-axis ion extraction – requires special confilguration of output electrodes providing steep potential gradient. Numerical simulations of ion extraction trajectories for two different electrode confilgurations are compared and the optimal one is discussed. The obtained results will be useful for TESIS design and construction.

The tectonic zoning of the African-Antarctic sector of the Southern Ocean was carried out on the basis of cluster analysis of a large volume of heterogeneous geophysical and geological data. It is known that the degree of geological and geophysical exploration of this part of the ocean by marine surveys and drilling remains extremely low. The results of such an analysis make it possible in areas with weak geophysical knowledge to quickly draw up tectonic zoning schemes based on regional geophysical data that are freely available throughout the entire territory of the world ocean and use them as a basis for further interpretation. The following materials were used as input data or classification features: ocean floor topography, gravity anomalies in free air and in the Bouger reduction, ∆Ta anomalous magnetic field model, ocean floor age, geoid height data, and the SL2013sv seismotomography model. «K-means» algorithms and the «Gaussian mixtures» method used for clustering. Based on the results of the application of these algorithms, cluster models of the study region were obtained, in which the selected classes fully reflect the main tectonic elements.

Understanding of particle dynamics is crucial in construction of electron guns, ion sources and other types of nonrelativistic beam devices. Apart from external guiding and focusing systems, a prominent role in evolution of such low-energy beams is played by particle-particle interaction. Numerical simulations taking into account these effects are typically accomplished by a well-known particle-in-cell method. In practice, for convenient work a simulation program should not only implement this method, but also support parallelization, provide integration with CAD systems and allow access to details of the simulation algorithm. To address the formulated requirements, development of a new open source code - Ef - has been started. It's current features and main functionality are presented. Comparison with several analytical models demonstrates good agreement between the numerical results and the theory. Further development plans are discussed.

The problem of intelligence has a wide research potential and attracts more and more attention of scientists and specialists in various fields. Today, the fundamental ideas about the structure and functions of intelligence in its natural (human) and artificial dimensions, the relationship of artificial intelligence with the natural in their unity and difference, are debatable. The purpose of the article is to study intelligence as a paradoxical (largely contradictory) phenomenon, the task is to search for the essential foundations of intelligence, to strengthen the arguments in favor of the existence of two relatively independent types of intelligence, each of which has specific functions. The main method of research is dialectics in relation to the format of logical algorithms inherent in intelligence. The main results of the article are the recognition of the paradoxical nature of human intelligence, due to the complex interaction of its positive and negative types (sides). In the process of historical evolution, the prevalence of one of the types of intellectuality is determined by the progressive or, on the contrary, counter-progressive course of social development. Now in one group of countries there is an average increase in the power of the positive functions of the intellect, in the other group, on the contrary, an increase in its negative components is clearly noted. The novelty lies in the formulation and substantiation of the thesis that in the conditions of progressive social development, positive intelligence strengthens its position in comparison with negative intelligence. On the contrary, in conditions of stagnation and especially regression, the position of negative intelligence strengthens, which is expressed in the growth of schizophrenic deviations, various phobias, etc. Directions for further research based on this work may include more thorough and differentiated studies of positive and negative intelligence, their unity and differences, and the dialectics of relationships in structural and functional terms in various historical eras, including the modern one. Along with this, questions of the essence, paradoxicality and inconsistency of intelligence can be useful to the developers of its artificial invariant.

The African-Antarctic sector of the Southern Ocean is the least studied part of the World Ocean, the structure and evolution of the tectonosphere of which remains debatable. The complex history of the development of the region under study, accompanied by manifestations of intense magmatic and tectonic activity, has contributed to the formation of a number of large underwater ridges and rises. Identifying the features of the deep structure of the tectonosphere on the basis of the analysis of geophysical information and understanding the geodynamic nature of the morphostructures of the studied region is an urgent problem of marine geophysics and geodynamics. Structural analysis of the anomalous gravitational and magnetic fields of the studied region was carried out. Zoning scheme by the anomalous fields as well as a generalized scheme are constructed. The results of the sestudiesmadeit possible to identify heterogeneous blocks of the lithosphere, which for medon different spreading ridges and are separated by submarine rises.