Economic and environmental approach to agricultural and rural development

This article discusses the choice of a model for development of agriculture and, accordingly, rural areas, taking into account the economic and environmental approach. The main producers of agricultural products and users of land resources are not only large and small agricultural organizations, but also personal subsidiary plots. The efficiency of use of land resources by households is much higher than in other agricultural organizations. Personal subsidiary plots in production of agricultural products use resource-saving technologies. Today, personal subsidiary plots remain without due attention from the state, business and the scientific community. They are also deprived of economic, financial, informational, technological, and human resources. As a practical implementation of theoretical conclusions, the article offers the implementation of the Bioekopolis project. In the territory of the Kanashsky district of the Chuvash Republic on the basis of Atalanu LLC from 2016 to 2021. experimental work was carried out to create individual elements of a small-scale rural settlement based on the principles of bioecopolis. The results of scientific and experimental design work, the experience of operating a residential building and outbuildings, the established operating mode of innovation gave the basis for development of an innovative project and the opportunity for its subsequent replication.

Mn-Doped BaTiO3Ceramics: Thermal and Electrical Properties for Multicaloric Applications

Multiferroic materials are widely used in microelectronics because they are sensitive to elastic, magnetic, and electric fields and there is an intrinsic coupling between them. In particular, transition metal-doped BaTiO₃ is considered as a viable multiferroic because of the simultaneous presence of ferroelectricity and magnetism. In this work, we study the electrical and thermal properties of Mn-doped BaTiO₃ ceramics that can be used for multicaloric applications. We found that Mn doping leads to the broadening and shifting of the phase transition accompanied with simultaneous decrease of latent heat and entropy. Mn doping causes a decrease in the bulk resistivity while contact resistance remains intact. Doped ceramics can withstand high electric fields (up to 40 kV/cm) and exhibit linear I-V characteristics followed by the Schottky limited current in contrast to earlier observations. As such, these ceramics are promising for multicaloric applications.

A game-theory based Multi-plant Collaboration Model (MCM) for cross-plant prevention in a chemical cluster

The presented Multi-plant Collaboration Model uses game theory to evaluate different strategic cross-plant precaution collaboration situations. The model first assumes prevention management's perceptions as a premise to take cross-plant prevention decisions. Second, it employs information from the different plants and aggregates the data to determine possible financial collaboration benefits within the entire industrial area. By doing so, an application of the model by a suggested independent supra-plant council may enhance and realize cross-corporation precaution in chemical clusters.

A sequential-move game for enhancing safety and security cooperation within chemical clusters

The present paper provides a game theoretic analysis of strategic cooperation on safety and security among chemical companies within a chemical industrial cluster. We suggest a two-stage sequential move game between adjacent chemical plants and the so-called Multi-Plant Council (MPC). The MPC is considered in the game as a leader player who makes the first move, and the individual chemical companies are the followers. The MPC's objective is to achieve full cooperation among players through establishing a subsidy system at minimum expense. The rest of the players rationally react to the subsidies proposed by the MPC and play Nash equilibrium. We show that such a case of conflict between safety and security, and social cooperation, belongs to the 'coordination with assurance' class of games, and we explore the role of cluster governance (fulfilled by the MPC) in achieving a full cooperative outcome in domino effects prevention negotiations. The paper proposes an algorithm that can be used by the MPC to develop the subsidy system. Furthermore, a stepwise plan to improve cross-company safety and security management in a chemical industrial cluster is suggested and an illustrative example is provided.

Developmental expression and distinctive tyrosine phosphorylation of the Eph-related receptor tyrosine kinase Cek9

Cek9 is a receptor tyrosine kinase of the Eph subfamily for which only a partial cDNA sequence was known (Sajjadi, F.G., and E.B. Pasquale. 1993. Oncogene. 8:1807-1813). We have obtained the entire cDNA sequence and identified a variant form of Cek9 that lacks a signal peptide. We subsequently examined the spatio-temporal expression and tyrosine phosphorylation of Cek9 in the chicken embryo by using specific antibodies. At embryonic day 2, Cek9 immunoreactivity is concentrated in the eye, the brain, the posterior region of the neural tube, and the most recently formed somites. Later in development, Cek9 expression is widespread but particularly prominent in neural tissues. In the developing visual system, Cek9 is highly concentrated in areas containing retinal ganglion cell axons, suggesting a role in regulating their outgrowth to the optic tectum. Unlike other Eph-related receptors, Cek9 is substantially phosphorylated on tyrosine in many tissues at various developmental stages. Since autophosphorylation of receptor protein-tyrosine kinases typically correlates with increased enzymatic activity, this suggests that Cek9 plays an active role in embryonic signal transduction pathways.