125 research outputs found

    Investigating Reliability Models as a Threat Scanner Tool in the Context of Information Security

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    The paper considers a number of features of practical use of the Mills models of software reliability. It investigates current problems related to the detection of threats to software. The paper compares the stages of software security and reliability. It presents the results obtained with the use of the model under consideration. It reflects the dependency of software reliability indicators on the number of testing stages. Key words: number of errors, software, testing, software error, reliability model

    High-Precision U-Pb Zircon Age Calibration of the Global Carboniferous Time Scale and Milankovitch Band Cyclicity in the Donets Basin, Eastern Ukraine

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    High-precision ID-TIMS U-Pb zircon ages for 12 interstratified tuffs and tonsteins are used to radiometrically calibrate the detailed lithostratigraphic, cyclostratigraphic, and biostratigraphic framework of the Carboniferous Donets Basin of eastern Europe. Chemical abrasion of zircons, use of the internationally calibrated EARTHTIME mixed U-Pb isotope dilution tracer, and improved mass spectrometry guided by detailed error analysis have resulted in an age resolution o

    Use of Gene-Activated Demineralized Bone Allograft in the Therapy of Ulnar Pseudarthrosis. Case Report

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    © 2016, Springer Science+Business Media New York.This paper presents a clinical case of successful ulnar pseudarthrosis treatment using a gene-activated bone allograft containing VEGF (vascular endothelial growth factor) and BMP2 (bone morphogenetic protein 2) in the form of a multicystron plasmid. Demineralized bone matrix with applied recombinant plasmid DNA was grafted into the bone defect using the classical open surgical approach. Two months after the surgery, the patient noticed the disappearance of pain including pain during activity. On X-rays of ulna, signs of union in the form of callus formation were found

    The dark web trades wildlife, but mostly for use as drugs

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    First published: 03 May 20231. Contemporary wildlife trade is massively facilitated by the Internet. By design, the dark web is one layer of the Internet that is difficult to monitor and continues to lack thorough investigation. 2. Here, we accessed a comprehensive database of dark web marketplaces to search across c. 2 million dark web advertisements over 5 years using c. 7 k wildlife trade-related search terms. 3. We found 153 species traded in 3332 advertisements (c. 600 advertisements per year). We characterized a highly specialized wildlife trade market, where c. 90% of dark-web wildlife advertisements were for recreational drugs. 4. We verified that 68 species contained chemicals with drug properties. Species advertised as drugs mostly comprised of plant species, however, fungi and animals were also traded as drugs. Most species with drug properties were psychedelics (45 species), including one genera of fungi, Psilocybe, with 19 species traded on the dark web. The native distribution of plants with drug properties were clustered in Central and South America. A smaller proportion of trade was for purported medicinal properties of wildlife, clothing, decoration, and as pets. 5. Synthesis and applications. Our results greatly expand on what wildlife species are currently traded on the dark web and provide a baseline to track future changes. Given the low number of advertisements, we assume current conservation and biosecurity risks of the dark web are low. While wildlife trade is rampant on other layers of the Internet, particularly on e-commerce and social media sites, trade on the dark web may still increase if these popular platforms are rendered less accessible to traders (e.g., via an increase in enforcement). We recommend focussing on surveillance of e-commerce and social media sites, but we encourage continued monitoring of the dark web periodically to evaluate potential shifts in wildlife trade across this more occluded layer of the Internet.Oliver C. Stringham, Jacob Maher, Charlotte R. Lassaline, Lisa Wood, Stephanie Moncayo, Adam Toomes, Sarah Heinrich, Freyja Watters, Charlotte Drake, Sebastian Chekunov, Katherine G. W. Hill, David Decary-Hetu, Lewis Mitchell, Joshua V. Ross, Phillip Casse

    Some aspects of the crustal structure in the southern part of European Russia

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    Main stages in geotectonic development of Northern Black Sea region

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    Governmental Support of Implementing Land Reclamation Activities in the Russian Federation

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    The problem of encouraging land reclamation activities is topical for present-day development of national agriculture. Land reclamation is a prerequisite for the growth of agricultural production, as it provides crop yields. At the same time, the existing situation of land reclamation in the Russian Federation does not allow to fully use its achievements for the long-term development of the industry. High wear and tear of equipment and its low manufacturability, costly work and a lack of qualified personnel impede the increase the efficiency of agricultural production. The existing economic situation of Russian agricultural enterprises does not allow them to carry out land-reclamation activities on their own in the necessary volumes. In this regard, the government state has provided a mechanism of financial incentives for carrying out relevant activities. The article is devoted to the governmental support of land reclamation in the Russian Federation, its problems and prospects. It analyzes the implementation of governmental state support for land reclamation work and its main results. It offers measures for correcting the governmental support for implementing reclamation works in order to preserve soil fertility and to ensure the effectiveness of agricultural production.</jats:p
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