Contribution to the fauna and bionomics of entomophagous insects feeding on the small spruce bark beetle Ips amitinus (Eichh.) (Coleoptera, Curculionidae: Scolytinae) in West Siberia

A total of 29 species of entomophagous insects from 15 families of 4 orders were found for the fi rst time in the galleries of the small spruce bark beetle Ips amitinus within its invasive range in West Siberia; 26 species were predators of Ips amitinus, including 11 species of obligate and 15 species of facultative zoophages. The most abundant obligate predators were Thanasimus femoralis (Zett.) (Coleoptera, Cleridae) and Medetera fasciata Frey (Diptera, Dolichopodidae); the most abundant facultative predator was Placusa complanata Er. (Coleoptera, Staphylinidae). The larval ectoparasitoids Dinotiscus eupterus (Walk.) and Rhopalicus tutela (Walk.) (Pteromalidae) and the endoparasitoid of adults Ropalophorus clavicornis (Wesm.) (Braconidae) develop on I. amitinus both in its native range and in the secondary ranges. Widespread representatives of the local fauna that have established new trophic links with I. amitinus absolutely predominate among its entomophages in West Siberia. The European species Phloeonomus sjoebergi A. Strand (Staphylinidae) and Epuraea dolosa Kir. (Nitidulidae) were found for the fi rst time in Siberia. Ips amitinus has been included in the prey spectrum of Medetera penicillata Neg., which is an obligate predator of Polygraphus proximus Blandf., another invasive bark beetle of Far Eastern origin

The Influence of Psychological Methods and Means of Physical Culture on the Formation of the Personality of Students

The article reveals the positive influence of psychological methods and means of physical culture on the formation of the personality of students of the main and special medical departments, the similarities and differences in the process of studying the discipline "Physical culture and Sports" are given.В статье раскрывается положительное влияние психологических методов и средств физической культуры на становление личности обучающихся основного и специального медицинского отделения, приводятся сходства и различия в процессе изучения дисциплины «Физическая культура и спорт»

Research of ways to improve the security of corporate networks

Objective. The article explores a way to improve the security of a corporate network by using the technique of spoofing sender addresses when forwarding packets between computers. Method. Network traffic analysis methods, network protocol level programming and data packet processing algorithms are used. Computers on the network are connected to one server. When sending packets between computers in the network, the sender's address is replaced, and when a packet is received by another computer, the packet is disassembled, and the real sender's address is inside it. Result. The method allows for effective protection of a corporate network from attacks associated with the forgery of addresses of data packet senders. Conclusion. Using the sender address substitution technique when transmitting data in a corporate network is an effective way to increase security and protection from external threats. Further research is aimed at developing complex and reliable methods for protecting networks

La lucha por el mercado del petróleo alemán en los inicios del régimen de Hitler

On the basis of diplomatic documents, the paper reconstructs a detailed picture of the expulsion from the German market during 1933 of the Soviet firms “Derop” and “Derunaft”, suppliers of oil products. The document of Soviet intelligence shows that a big Dutch-British oil magnate, Sir H. Deterding, can be considered one of the inspirers of this process; he hoped, among other things, to seize control of the Caucasian oil fields in the course of the alleged "crusade" against the USSR.Sobre la base de documentos diplomáticos, el artículo reconstruye un cuadro detallado de la expulsión del mercado alemán durante 1933 de las empresas soviéticas "Derop" y "Derunaft", proveedoras de productos petrolíferos. Los materiales de la inteligencia soviética muestran que uno de los inspiradores de este proceso puede ser considerado el gran magnate petrolero holandés-británico Sir H. Deterding, quien, en el curso de la supuesta "cruzada" contra la URSS, esperaba, entre otras cosas, tomar el control de los campos petroleros del Cáucaso