ОСОБЕННОСТИ ЛУЧЕВОЙ КАРТИНЫ У ДЕТЕЙ С ВРОЖДЕННОЙ ДЕФОРМАЦИЕЙ ГРУДНОГО ОТДЕЛА ПОЗВОНОЧНИКА НА ФОНЕ НАРУШЕНИЯ СЕГМЕНТАЦИИ БОКОВЫХ ПОВЕРХНОСТЕЙ ТЕЛ ПОЗВОНКОВ

Purpose — to study alterations in the bony structures in cases of congenital deformity of the thoracic spine combined with malsegmentation of lateral surfaces of vertebrae due to pathological processes during growth period of childern and to find correlation with above alterations.Material and Methods. The study included 30 patients with congenital deformity of thoracic spine combined with malsegmentation of lateral surfaces of vertebrae. age of patients ranged from 3 to 10 years (mean of 7 years). gender distribution — 19 female and 11 male patients. all patients underwent imaging examination including spine roentgenography in two standard views in prone position as well as computer tomography.Results. Magnitude of deformity scoliotic curve was 67° (45–88°) and of pathological thoracic lordosis — 23° (18–27°). Mean number of block vertebral motion segments included into the main deformity curve was 6 (3–8). Mean distance between the outline of lateral vertebral surface and lateral outline of projection of curve root of apical vertebra on convex side of deformity (aB) was 6 mm (4–10 mm). correlation analysis demonstrated that aB distance mostly depended on the number of vertebral motion segments included into the block along non-segmental area: pearson coefficient 0.67. Based on cT scans the authors observed no rotation component of bodies’ deformity along the non-segmental area.Conclusion. Children with congenital thoracic spine deformity along with malsegmentation of lateral surfaces  of vertebrae feature pathological lordosis in affected zone. alterations in the bony structures result from asymmetric growth of one half of the vertebral body at the level of non-segmentation. asymmetry severity has a strong correlation dependency from the number of vertebral bodies included in the block along the non-segmental area.Цель исследования — изучение изменений костных структур при врожденной деформации грудного отдела позвоночника на фоне нарушения сегментации боковых поверхностей тел позвонков в результате патологических процессов в процессе роста ребенка и выявление корреляционной зависимости этих изменений. Материал и методы. В исследование вошло 30 пациентов с врожденной деформацией грудного отдела позвоночника на фоне нарушения сегментации боковых поверхностей тел позвонков. возраст пациентов варьировал от 3 до 10 лет (в среднем 7 лет). Распределение по полу — 19 девочек, 11 мальчиков. всем пациентам проведено лучевое обследование, включающее выполнение рентгенограмм позвоночника в двух стандартных проекциях в положении ребенка лежа, компьютерную томографию позвоночника.Результаты. Величина сколиотической дуги деформации составила 67° (45–88°), величина патологического грудного лордоза — 23° (18–27°). Количество блокированных позвоночно-двигательных сегментов, входящих в основную дугу деформации, — 6 (3–8). Расстояние между контуром боковой поверхности тела  и латеральным контуром проекционного изображения корня дуги апикального позвонка на выпуклой стороне деформации (ав) — 6 мм (4–10 мм). Результаты корреляционного анализ показали, что расстояние ав в наибольшей степени зависело от количества позвоночно-двигательных сегментов, входящих в блок на протяжении несегментированного стержня: коэффициент корреляции пирсона составил 0.67. на основании данных кТ исследования позвоночника отмечено отсутствие ротационного компонента деформации тел  позвонков на протяжении несегментированного стержня.Заключение.  У детей с врожденной деформацией грудного отдела позвоночника на фоне нарушения сегментации боковых поверхностей тел позвонков имеет место патологический лордоз в зоне порока.  Изменения костных структур обусловлены асимметричным ростом половины тела позвонка на уровне несегментированного стержня. выраженность асимметрии находится в сильной корреляционной зависимости от количества тел позвонков, входящих в блок на протяжении несегментированного стержня

Spectral and photometric characteristics of mid-latitude auroras during the magnetic storm of March 17, 2015

We study the spatiotemporal dynamics of mid-latitude aurora from observations in the south of Eastern Siberia during St. Patrick’s severe geomagnetic storm on March 17, 2015. We perform a morphological analysis of characteristics of the observed auroras. A preliminary conclusion is drawn that the analyzed event is the result of the manifestation of mid-latitude auroras of two types (type “d” and SAR arc) and ordinary aurora observed at the northern horizon. The maximum intensity of the dominant emission [OI] at 630.0 nm (~14 kR) allows this mid-latitude aurora to be attributed to the extreme auroras occurring in mid-latitudes, which is second only to the November 20, 2003 superstorm (~19 kR)

Optical effects produced by running onboard engines of low-earth-orbit spacecraft

This paper presents results of optical observations made during Radar-Progress Experiment performed on April 17, 2013 and July 30, 2014 after approach-correction engines (ACE) of Progress M-17M and Progress M-23M cargo spacecraft in the thermosphere had been started. A region of enhanced emission intensity was recorded during engine operation. This may have been related to the scatter of twilight solar emission along the cargo spacecraft exhaust and to the emergence of additional atomic oxygen [OI] emission at 630 nm. The maximum dimension of the observed emission region was ~330–350 km and ~250–270 km along and across the orbit respectively. For the first time after ACE had been started, an expansion rate of emission region was ~ 7 and ~ 3.5 km/s along and across the orbit respectively. The maximum intensity of the disturbance area for Progress M-17M is estimated as ~40–60 R at 2 nm. Progress M-23M Space Experiment recorded a minor disturbance of atmospheric [OI] 630.0 nm emissions, both in near and in far cargo spacecraft flight paths, which might have been associated with the ACE exhaust gas injection

Songs of Love and Marriage in \u22Shijing Guofeng (詩經國風)\u22 and Ancient Courtship through Song and Dance

Anaerobic enrichment from sediments of hypersaline alkaline lakes in Wadi el Natrun(Egypt) with chitin resulted in the isolation of a fermentative haloalkaliphilic bacterium,strain ACht6-1, growing exclusively with insoluble chitin as the substrate in a sodiumcarbonate-based medium at pH 8.5–10.5 and total NaC concentrations from 0.4 to1.75 M. The isolate had a Gram-negative cell wall and formed lipid cysts in old cultures.The chitinolytic activity was associated with cells. Analysis of the 4.4 Mb draft genomeidentified pathways for chitin utilization, particularly, secreted chitinases linked to the cellsurface, as well as genes for the hydrolysis of other polysaccharides and fermentationof sugars, while the genes needed for aerobic and anaerobic respiration were absent.Adaptation to a haloalkaliphilic lifestyle was reflected by the gene repertoire encodingsodium rather than proton-dependent membrane-bound ion pumps, including the Rnftypecomplex, oxaloacetate decarboxylase, V-type ATPase, and pyrophosphatase. Thephylogenetic analysis using 16S rRNA gene and ribosomal proteins indicated thatACht6-1 forms a novel deep lineage at the class level within the bacterial candidatedivision TG3. Based on phylogenetic, phenotypic and genomic analyses, the novelchitinolytic bacterium is described as Chitinispirillum alkaliphilum gen. nov., sp. nov.