Excitation of solitons in hexagonal lattices and ways of controlling electron transport

This is a post-peer-review, pre-copyedit version of an article published in Philosophical Transactions A: Mathematical, Physical and Engineering Sciences. The final authenticated version is available online at: http://dx.doi.org/10.1007/s40435-017-0383-x.We construct metastable long-living hexagonal lattices with appropriately modified Morse interactions and show that highly-energetic solitons may be excited moving along crystallographic axes. Studying the propagation, their dynamic changes and the relaxation processes it appears that lump solitons create in the lattice running local compressions. Based on the tight-binding model we investigate the possibility that electrons are trapped and guided by the electric polarization field of the compression field of one soliton or two solitons with crossing pathways. We show that electrons may jump from a bound state with the first soliton to a bound state with a second soliton and changing accordingly the direction of their path. We discuss the possibility to control by this method the path of an excess electron from a source at a boundary to a selected drain at another chosen boundary by following straight pathways on crystallographic axes.DFG, 163436311, SFB 910: Kontrolle selbstorganisierender nichtlinearer Systeme: Theoretische Methoden und Anwendungskonzept

International Law and Political Journalism in the Fight Against the Information Space Radicalization. Review of the Monograph «Global Extremism Index»

The idea of the global extremism index reflects the need for international cooperation in combating dangerous manifestations of the ideology of political violence and hate speech. In conditions when the norms of national and international law guarantee the mass media access to a global audience, the ability to exercise freedom of speech in the interests of cultural exchange and sustainable development becomes of fundamental importance. The monograph, prepared by a team of specialists in the field of law and mass communications, examines the political and legal aspects of assessing the public danger of various manifestations of violent extremism

Дифференцированный выбор малоинвазивного хирургического доступа в хирургическом лечении желчнокаменной болезни

In 2009 at the University Clinic of the Odessa National Medical University with minilaparoscopic and single-port technology we have operated 47 patients with cholelithiasis. 26 patients were performed minilaparoscopic cholecystectomy, 21 — laparoscopic cholecystectomy using a single laparoscopic access. All surgical interventions had no intraoperative complications. In 5 patients because of anatomic difficulties in removing the gallbladder, we were used to installing an additional trocar in the epigastric region. Time used for interventions ranged from 30 to 130 minutes. Patients were hospitalized after the surgery from 1 to 4 days. Technically, the performance of single-port laparoscopic cholecystectomy was more difficult than the traditional laparoscopic or minilaparoscopic operations due to lack of conditions for the quality triangulation, visualization of anatomical structures in the area of operation and the small angle between the operating instruments. Particular attention was devoted to adequate closure of the abdominal wall defect after installing the port. Pain after use minilaparoscopic surgery was significantly less than with traditional laparoscopic approach. The intensity of pain after single-port operations, was comparable with that of conventional traditional laparoscopy. At follow-up of patients during the first months after surgery separated complications were not observed, marked by a beautiful cosmetic effect. 8 months after surgery 1 patient was diagnosed trocar-site hernia after a single port laparoscopic cholecystectomy.С 2009 г. в клинике Одесского национального медицинского университета прооперировано 47 больных с желчнокаменной болезнью. У 26 больных выполнена минилапароскопическая холецистэктомия, у 21 – однопортовая. Все оперативные вмешательства прошли без интраоперационных осложнений. У 5 пациентов из-за анатомических сложностей мы вынуждены были прибегнуть к установке дополнительного троакара в эпигастральной области. Время, использованное для проведения вмешательств, варьировалось от 30 до 130 мин. Больные находились в стационаре от 1 до 4 сут. При наблюдении за пациентами в течение первых месяцев после операции отдаленных осложнений не наблюдалось, отмечен хороший косметический эффект. Спустя 8 месяцев после операции у 1 пациента после однопортовой лапароскопической холецистэктомии диагностирована троакарная грыжа в месте установки порта

Biodegradation of Perfluorooctanoic Acid by Pseudomonas Plecoglossicida Strain DD4

Organofluorines, as a pollutant, belongs to a group of substances which are very difficult to neutralize. They are part of many products of everyday use and for this reason they pollute the environment in large quantities. Perfluorinated carboxylic acids are entered into the list of the “Stockholm Convention on Persistent Organic Pollutants” in order to minimize the load on the environment by significantly reducing their use, up to their complete rejection. The DD4 strain was isolated from the soil by the enrichment method and identified using 16S rRNA method as Pseudomonas plecoglossicida. It is able to metabolize perfluorooctanoic acid (PFOA) as the only carbon source in Raymond nutrient medium with a concentration of 1000 mg/l with the release of 132 mg/l fluorine ions. In tests conducted on the biological decomposition of perfluorooctanoic acid, it was possible to quantify its residues using tandem LCMS-IT-TOF. The presented results characterize the Pseudomonas plecoglossicida DD4 strain actively utilized PFOA as the sole carbon source, which characterizes it as a candidate for the creation of biological products aimed at the utilization of organofluorine pollutants

Integrated project management system of scientific and technical centre in oil company "Rosneft"

Concept and structure of three level integrated project management system of in project-oriented organization have been suggested and described. Synergetic effect at such system introduction is achieved due to systemic actions in such directions as: increasing organization controllability and transparence of decision making; flow of documentation regulation; formalization and optimization of project activity; development of irredundant and consistent system of normative documents in all directions of organization activit