Spatial Data Analysis Based on the Results of a Set of Observations of Deformation Processes Performed Using Strain Gauges

Данная статья посвящена вопросам наблюдения за деформациями конструкций уникальных объектов. В статье рассматривается анализ пространственных данных, полученных с использованием тензометрических датчиков, приведен расчет нагрузок, воспринимаемых конструкцией. Кроме того, приводится сопоставление тензометрических данных с величинами деформаций, полученными посредством геодезических методов.This article is devoted to the issues of observation and analysis of deformations of structures of unique objects. The article discusses the analysis of spatial data obtained using strain gauges, the calculation of loads perceived by the structure. In addition, the article presents a comparison of strain gauge data with the values of deformations obtained by geodetic methods

Technical Monitoring of Coating Structures of High-Critical Structures During Operation

Для обеспечения безопасности, эксплуатационной надежности уникальных и технически сложных объектов строительства необходимо производство систематических наблюдений контролируемых параметров для выявления отклонений и выполнение анализа степени опасности — все это производится в рамках технического мониторинга. В данной статье описывается производство систематических наблюдений контролируемых параметров, в которые входят наблюдения прогиба ферм в период эксплуатации, а также анализ мониторинга покрытия кровли аэровокзального комплекса.To ensure the safety, operational reliability of unique and technically complex construction projects, it is necessary to make systematic observations of controlled parameters to identify deviations and an analysis of the degree of danger — all this is done as part of technical monitoring. This article describes the production of systematic observations of controlled parameters, which include observations of trusses deflection during operation, as well as an analysis of the monitoring of the roofing of the air terminal complex

Лейкоэнцефалопатия с поздним началом с преимущественным поражением ствола головного мозга, спинного мозга и повышением лактата (клинические наблюдения)

Leukoencephalopathy with brain stem and spinal cord involvement and elevated lactate on magnetic resonance spectroscopy is a progressive hereditary disease of the nervous system clinically characterized by pyramidal and cerebellar dysfunction, dorsal column signs and sometimes axonal neuropathy with specific neuroimaging signs of damage to the nervous system, detected by magnetic resonance imaging. This disease is caused by mutations in the DARS2 gene. The article presents an analysis of three clinical cases with the manifestation of neurological symptoms in adolescence. Clinical features and magnetic resonance imaging findings are discussed, difficulties of differential diagnosis with multiple sclerosis are presented. Genetic screening algorithms are proposed.Лейкоэнцефалопатия с преимущественным поражением ствола головного мозга, спинного мозга и повышением лактата при магнитно-резонансной спектроскопии — наследственное заболевание нервной системы с прогрессирующим течением, проявляющееся пирамидными и мозжечковыми нарушениями в сочетании с признаками поражения задних столбов спинного мозга и в некоторых случаях с аксональной нейропатией, со специфическими нейровизуализационными признаками поражения нервной системы, выявляемыми при магнитно-резонансной томографии. Развитие данного заболевания связано с мутациями в гене DARS2. В статье представлен анализ 3 клинических случаев с манифестацией неврологических симптомов в подростковом возрасте. Рассмотрены особенности клинических проявлений и магнитно-резонансной картины, сложности дифференциальной диагностики с рассеянным склерозом, алгоритмы генетического обследования

Ontogenetic changes in stable isotope (δ¹³C and δ¹⁵N) values in squid Gonatus fabricii (Cephalopoda) reveal its important ecological role in the Arctic

© Inter-Research 2018. Gonatus fabricii is the most abundant cephalopod species in Arctic waters, and the only squid that completes its entire life cycle there. In order to understand its ecological role in the Arctic, we conducted stable isotope analyses of beaks from all ontogenetic groups from west and east Greenland waters and the Barents Sea, complemented with morphological data. The values of both δ13C and δ15N of G. fabricii were not related to sex. Values of δ13C showed a small ontoge-netic increase, and these values were geographically distinct, with highest levels found in the western part of the study area. Values of δ15N showed a dramatic ontogenetic increase (i.e. 10.0‰ δ15N; 2.6 trophic levels), from epipelagic juvenile forms to large bathypelagic adults, without significant geographical variation. The observed maximum value of δ15N (14.9‰) is the highest ever recorded in cephalopod beaks. The estimated trophic level (up to 5.1) compares only to top vertebrate predators in the Arctic: large piscivorous fishes, seals and toothed whales or large benthic scavenging fishes. Thus, G. fabricii is a top invertebrate predator in the Arctic, with the widest iso-topic niche observed to date for any species there. Among cephalopods its trophic level is only exceeded by its Antarctic congener, G. antarcticus, and by the Antarctic colossal squid Mesony-choteuthis hamiltoni. Thus, polar squids occupy higher trophic positions than do squids living in warmer regions. Finally, our study shows that G. fabricii descends to bathypelagic layers during ontogenesis, continuously increasing its trophic level by changing prey types and sizes, and avoiding predation pressure

Ontogenetic changes in stable isotope (δ¹³C and δ¹⁵N) values in squid Gonatus fabricii (Cephalopoda) reveal its important ecological role in the Arctic

© Inter-Research 2018. Gonatus fabricii is the most abundant cephalopod species in Arctic waters, and the only squid that completes its entire life cycle there. In order to understand its ecological role in the Arctic, we conducted stable isotope analyses of beaks from all ontogenetic groups from west and east Greenland waters and the Barents Sea, complemented with morphological data. The values of both δ13C and δ15N of G. fabricii were not related to sex. Values of δ13C showed a small ontoge-netic increase, and these values were geographically distinct, with highest levels found in the western part of the study area. Values of δ15N showed a dramatic ontogenetic increase (i.e. 10.0‰ δ15N; 2.6 trophic levels), from epipelagic juvenile forms to large bathypelagic adults, without significant geographical variation. The observed maximum value of δ15N (14.9‰) is the highest ever recorded in cephalopod beaks. The estimated trophic level (up to 5.1) compares only to top vertebrate predators in the Arctic: large piscivorous fishes, seals and toothed whales or large benthic scavenging fishes. Thus, G. fabricii is a top invertebrate predator in the Arctic, with the widest iso-topic niche observed to date for any species there. Among cephalopods its trophic level is only exceeded by its Antarctic congener, G. antarcticus, and by the Antarctic colossal squid Mesony-choteuthis hamiltoni. Thus, polar squids occupy higher trophic positions than do squids living in warmer regions. Finally, our study shows that G. fabricii descends to bathypelagic layers during ontogenesis, continuously increasing its trophic level by changing prey types and sizes, and avoiding predation pressure

Late-onset leukoencephalopathy with predominant damage to the brain stem, spinal cord and increased lactate (clinical observations)

Leukoencephalopathy with brain stem and spinal cord involvement and elevated lactate on magnetic resonance spectroscopy is a progressive hereditary disease of the nervous system clinically characterized by pyramidal and cerebellar dysfunction, dorsal column signs and sometimes axonal neuropathy with specific neuroimaging signs of damage to the nervous system, detected by magnetic resonance imaging. This disease is caused by mutations in the DARS2 gene. The article presents an analysis of three clinical cases with the manifestation of neurological symptoms in adolescence. Clinical features and magnetic resonance imaging findings are discussed, difficulties of differential diagnosis with multiple sclerosis are presented. Genetic screening algorithms are proposed