Theory of temperature dependence of the Fermi surface-induced splitting of the alloy diffuse-scattering intensity peak

The explanation is presented for the temperature dependence of the fourfold intensity peak splitting found recently in diffuse scattering from the disordered Cu3Au alloy. The wavevector and temperature dependence of the self-energy is identified as the origin of the observed behaviour. Two approaches for the calculation of the self-energy, the high-temperature expansion and the alpha-expansion, are proposed. Applied to the Cu3Au alloy, both methods predict the increase of the splitting with temperature, in agreement with the experimental results.Comment: 4 pages, 3 EPS figures, RevTeX, submitted to J. Phys. Condens. Matter (Letter to the Editor

Hantavirus Associated with Hemorrhagic Fever with Renal Syndrome Outbreak in the Saratov Region in 2019

Pathogenic hantaviruses, belonging to the family Hantaviridae, genus Orthohantavirus, are widely spread in many regions of the world and cause hemorrhagic fever with renal syndrome (HFRS) in Europe and Asia. In the European Russia, the most active HFRS foci are located in the optimum habitat area of natural reservoir of the Puumala virus (PUUV), bank voles (Myodes glareolus), – in the Middle Volga and Cis-Urals. The largest number of cases of HFRS was registered in the Volga Federal District. In 2019, an outbreak of HFRS was registered among the residents of Saratov and the Saratov Region, the number of cases was 2702. Objective of the study was genetic identification of hantaviruses from HFRS patients and rodent carriers and phylogenetic analysis of full-size genomes from natural hosts during HFRS outbreak in the Saratov Region, 2019. Materials and methods. Blood samples of 8 HFRS patients from Saratov and 3 lung samples of bank voles captured in the suburb of Saratov were analyzed using reverse transcription polymerase chain reaction, followed by sequencing and phylogenetic analysis. Results and discussion. A total of 6 viral RNA isolates from HFRS patients were genetically typed, full-length RNA-isolate genomes were obtained for 3 natural carriers. Our data indicate that PUUV virus was associated with HFRS outbreak in Saratov. Genetic analysis revealed that the virus belonged to RUS lineage of PUUV, related most closely to strains from Udmurtia and Tatarstan and differed from strains circulating in the territory of Bashkortostan and Samara Region

Топографо-анатомическое и клиническое обоснование использования доступа Мерзликина-Парамоновой при операциях на печени

The purpose of the study was to assess results of Merzlikin-Paramonova's approach in liver surgeries.Material and Methods. The topographical-anatomical and spatial relationships were studied on 20 corpses, taking into account assessment criteria according to A.Yu. Sozon-Yaroshevich. In clinical settings, Merzlikin-Paramonova's approach was applied in the treatment of 81 patients with hepatic diseases (cancer, hemangioma, alveococcosis), who underwent radical and palliative surgeries. Short-and long-term treatment outcomes during a 5 year follow-up were analyzed. Merzlikin-Paramonova's approach provided a sufficient overview of the liver, easy manipulation in the area of large bile ducts and blood vessels, as well as the ability to perform lymphodissection and combined operations.Results. The Merzlikin-Paramonova's approach to liver surgeries has significant advantages over traditional surgical approaches, providing a good overview for revision of both primary and recurrent liver lesions. This surgical approach allowed the number of postoperative complications to be reduced due to less wound tension, rapid relief of pain and reduction in intra-abdominal hypertension, thus shortening the treatment time for patients. In the long-term postoperative period, the incidence of postoperative hernias decreased due to less damage to the nerve terminals of the anterior abdominal wall.Conclusion. Merzlikin-Paramonova's approach is slightly traumatic due to innervation and muscle structure of the abdominal wall, is more physiological for the patient, and has a low rate of complications. This approach provides a good access to the organ requiring surgery and is able to perform radical cytoreductive surgeries. Merzlikin-Paramonova's approach to liver surgeries can be recommended for active implementation in clinical practice.Целью исследования является изучение результатов внедрения в клиническую практику доступа Мерзликина-Парамоновой.Материал и методы. В эксперименте на 20 трупах проведено изучение топографо-анатомических, пространственных взаимоотношений в ране с учетом критериев оценки по А.Ю. Созон-Ярошевичу. В клинике доступ Мерзликина-Парамоновой применен в лечении 81 пациента с очаговой патологией печени (рак, гемангиома, альвеококкоз), которым выполнены радикальные и паллиативные оперативные вмешательства. Прослежены ближайшие и отдаленные результаты в сроки до 5 лет после лечения. При всех перечисленных вмешательствах предлагаемый доступ обеспечивал достаточный обзор печени, свободу манипуляций в области крупных желчных протоков, сосудов, в том числе и криоинструментами, возможность выполнения лимфодиссекции и комбинированных операций.Результаты. Предложенный доступ для оперативного вмешательства на печени имеет значительные преимущества перед традиционными, обеспечивает хороший обзор для ревизии оперируемого органа как при первичном, так и рецидивном поражении. Использование доступа позволило провести более раннюю активизацию больных, снизить количество послеоперационных осложнений за счет меньшего натяжения раны, скорейшего купирования болевого синдрома и снижения внутриабдоминальной гипертензии, что позволило сократить сроки лечения больных. В отдаленном послеоперационном периоде снижалась частота развития послеоперационных грыж за счет меньшего повреждения нервных окончаний передней брюшной стенки.Заключение. Доступ Мерзликина-Парамоновой малотравматичен за счет того, что учитываются иннервация и мышечное строение стенки брюшной полости, а также более физиологичен, что подтверждается низкими показателями осложнений. Хорошая доступность оперируемого органа, возможность для расширения и выполнения радикальных и циторедуктивных операций показали, что доступ создает достаточный простор для ревизии и оперативного вмешательства как в случае первичного, так и метастатического поражения органа. С учетом этого заявленный способ доступа может быть рекомендован для активного внедрения в клиническую практику

Glycosylation of immunoglobulin G is regulated by a large network of genes pleiotropic with inflammatory diseases

Effector functions of immunoglobulin G (IgG) are regulated by the composition of a glycan moiety, thus affecting activity of the immune system. Aberrant glycosylation of IgG has been observed in many diseases, but little is understood about the underlying mechanisms. We performed a genome-wide association study of IgG N-glycosylation (N = 8090) and, using a data-driven network approach, suggested how associated loci form a functional network. We confirmed in vitro that knockdown of IKZF1 decreases the expression of fucosyltransferase FUT8, resulting in increased levels of fucosylated glycans, and suggest that RUNX1 and RUNX3, together with SMARCB1, regulate expression of glycosyltransferase MGAT3. We also show that variants affecting the expression of genes involved in the regulation of glycoenzymes colocalize with variants affecting risk for inflammatory diseases. This study provides new evidence that variation in key transcription factors coupled with regulatory variation in glycogenes modifies IgG glycosylation and has influence on inflammatory diseases.Molecular Epidemiolog

Controlled variation of the chemical composition of the surface layer in plasma-arc refining remelting of creep-resisting alloys

Translated from Russian (Probl. Spetsial'noi 1999 (2) p. 54-58)Available from British Library Document Supply Centre-DSC:9023.190(VR-Trans--9077)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo