Electromagnetic dissociation of relativistic 8^8B nuclei in nuclear track emulsion

Experimental data on fragmentation channels in peripheral interactions of $^8$B nuclei in nuclear track emulsions are presented. A detailed analysis made it possible to justify selections of events of the electromagnetic-dissociation process $^8$B $\to^7$Be + \emph{p} and to estimate its cross section. Events of $^{10}$C peripheral dissociation that were observed in the same exposure are described.Comment: 12 pages, 10 figures, 4 tables, Published in Phys.Atom.Nucl.72:690-701,200

Oil-crop biomass conversion using polymerstabilized catalysts

Palladium-based catalysts supported on hypercrosslinked polystyrene were studied in the hydroconversion processes of oilseed biomass: (I) deoxygenation in a conventional solvent; (II) deoxygenation in supercritical hexane; (III) hydrogenation in toluene. It was shown that the highest selectivity towards the formation of target product, as well as the highest rate of stearic acid conversion in all the investigated processes, was observed using a 1% -Pd/HPS catalyst

Apical hypertrophic cardiomyopathy as a mask of acute coronary syndrome: a case series

Apical hypertrophic cardiomyopathy (HCM) or Yamaguchi syndrome is a relatively rare subtype of HCM characterized by a left ventricular apex localization of the hypertrophy. In this case, chest pain can be erroneously interpreted as a manifestation of coronary artery disease. This article presents two cases of apical HCM in patients admitted with a diagnosis of acute coronary syndrome. Electrocardiogram revealed repolarization disorder and giant T wave inversion (up to 10 mm) in the precordial leads. Transthoracic echocardiography revealed local symmetric hypertrophy of the left ventricular apex, which made it possible to diagnose apical HCM. The coronary arteries in both patients were intact. The presented cases demonstrate a variant of apical HCM with chest pain as the leading clinical syndrome, which can often be the cause of overdiagnosis of acute coronary syndrome

Fragmentation of relativistic nuclei in peripheral interactions in nuclear track emulsion

The technique of nuclear track emulsions is used to explore the fragmentation of light relativistic nuclei down to the most peripheral interactions - nuclear "white" stars. A complete pattern of therelativistic dissociation of a $^8$B nucleus with target fragment accompaniment is presented. Relativistic dissociation $^{9}$Be$\to2\alpha$ is explored using significant statistics and a relative contribution of $^{8}$Be decays from 0$^+$ and 2$^+$ states is established. Target fragment accompaniments are shown for relativistic fragmentation $^{14}$N$\to$3He+H and $^{22}$Ne$\to$5He. The leading role of the electromagnetic dissociation on heavy nuclei with respect to break-ups on target protons is demonstrated in all these cases. It is possible to conclude that the peripheral dissociation of relativistic nuclei in nuclear track emulsion is a unique tool to study many-body systems composed of lightest nuclei and nucleons in the energy scale relevant for nuclear astrophysics.Comment: 15 pages, 4 figures, 4 tables, conference: Relativistic nuclear physics: from Nuclotron to LHC energies, Kiev, June 18-22, 200

Legal Regulation of Crowdfunding in Russia and Foreign Countries

The article discusses the legal regulation of crowdfunding in Russia and some foreign countries. Crowdfunding is analyzed as a category that is an integral part of e-commerce law. The analysis of the formation of this institution in foreign countries, such as the USA, Italy, Belgium. Conclusions have been formulated regarding risks that should be considered before investing in crowdfunding. The prospects of the development of crowdfunding in Russia are also considere

Destination development in Western Siberia:Tourism governance and evolutionary economic geography

Tourism development has often been identified as a tool for balancing negative effects of economic restructuring, especially in peripheral regions. Tourism-based activities often utilize the availability of abundant nature, but although most English language studies of destination development are presented from western contexts, examples from post-Soviet Russia are rare. Western Siberia is a periphery with access to natural resources and heavy industrialization but remotely located from domestic (Russian) and international markets, where tourism is often considered a saviour, especially for the regional economies. Stakeholders in this Russian resource periphery face challenges in managing governance and cooperation in destinations development due to frequent institutional, economic and social changes. Using evolutionary economic geography and based on primary sources and interview data, tourism development and stakeholder relations are assessed in three Western Siberia regions: Tomsk, Kemerovo and Altai Krai. Findings show that for tourism to make a significant contribution, it must be more central to the economic development agenda in all three regions. However, it is currently only achieving a permanent high-profile in one of them, being crowded out by other (mostly primary) industries in the other two. Although the specific tourism governance set-up varies between the three regions, it is clear that public tourism governance still sits somewhat uneasily between state control and the market economy. Tourism receives substantial public subsidies, especially in large-scale investment projects, which depend on federal support within a governance system where decentralization seems to be somewhat limited and unstable. As a result, the tourism path development in the Siberian periphery is highly dependent on state intervention and success in other sectors.</p