Перспективные коридоры на направлении Китай – Россия – Европа

Russia turns its gaze increasingly towards Asia and, in particular, aims to find new opportunities in China, which concordant foreign policy is aimed at coupling of potential of Eurasian Economic Union and ambitious project «Silk Road Economic Belt». It is not just a revival of traditional trade routes, but a real infrastructure revolution. Ways of implementing promising potential include also creation of railway lines and trans-shipment centers on the route Shanghai–Sabetta–Kyzyl–Shanghai using the Northern Sea Route and the multimodal port Sabetta in Yamal.Россия все активнее обращает свой взор в сторону Азии и, в частности, стремится найти как можно больше новых возможностей в Китае, созвучная внешняя политика которого направлена на сопряжение потенциалов Евразийского экономического союза и амбициозного проекта «Экономический пояс Шёлкового пути». Это не просто возрождение традиционных торговых маршрутов, а настоящая инфраструктурная революция. Способы реализации многообещающего потенциала в том числе включают создание железнодорожных линий и центров перевалки грузов на маршруте Шанхай–Сабетта–Кызыл–Шанхай с использованием Северного морского пути и мультимодального порта Сабетта на Ямале

Результаты использования миопластики для закрытия дефекта тазового дна после экстралеваторной брюшно-промежностной экстирпации прямой кишки

Background. Extralevator abdominoperineal excision is associated with a high incidence of perineal wound complications. There is no uniform standard for choosing the method for pelvic floor reconstruction after extralevator abdominoperineal excision.The purpose of the study was to compare the results of extralevator abdominoperineal excisions of the rectum using various methods of perineal wound closure.Materials and Methods. Between 2014 and 2018, 120 patients underwent extralevator abdominoperineal excisions of the rectum using various options for closure of the pelvic floor. The patients were divided into 3 groups. Group I patients (n=64) underwent simple plasty of the peritoneal wound. Group II patients (n=43) underwent myoplasty using the gluteus maximus muscle. Group III patients (n=13) underwent myoplasty using the rectus abdominis muscle. The incidence of perineal wound complications in the early postoperative period was assessed.Results. The total number of perineal wound complications in Group I, II and III was 33 (51.5 %), 13 (30.2 %), and 6 (46.1 %), respectively. Grade IIIA-IIIB complications according to the Clavien-Dindo classification were observed in 25 % of Group I patients, in 18.6 % of Group II patients and in 7.7 % of Group II patients. Postoperative perineal wound complications occurred more often in Group I patients after simple plasty than in Group II and III patients after myoplasty (51.5 % versus 30.2 %). However, perineal wound complications were observed more often in Group III than in Group II (46.1 % versus 30.2 %, respectively). No significant differences in the frequency of complications between 3 groups were found.Conclusion. Using various options for closure of the pelvic floor after extralevator abdominoperineal excisions of the rectum, there was a tendency to reduction in the incidence of grade IIIA-IIIB perineal wound complications.Введение. Экстралеваторная брюшно-промежностная экстирпация связана с большой частотой послеоперационных осложнений со стороны промежностной раны. В литературе нет единых стандартных рекомендаций по выбору метода пластики дефекта тазового дна.Целью исследования является сравнение результатов использования простой пластики, пластики лоскутом ягодичной мышцы и лоскутом прямой мышцы живота при закрытии промежностной раны после экстралеваторной брюшнопромежностной экстирпации прямой кишки.Материал и методы. Проведен анализ результатов лечения 120 больных, которым в период с 2014 по 2018 г. выполнена экстралеваторная брюшнопромежностная экстирпация с использованием различных методов закрытия дефекта тазового дна. В зависимости от способа промежностной пластики больные были разделены на три группы. В I группе (n=64) пациентам выполнена простая пластика промежностной раны, во II группе (n=43) - миопластика с использованием большой ягодичной мышцы, в III группе (n=13) - миопластика с использованием прямой мышцы живота. Оценивались частота и характер осложнений со стороны промежностной раны в раннем послеоперационном периоде.Результаты. Общее количество осложнений со стороны промежности в первой группе составило 33 (51,5 %), во второй - 13 (30,2 %), в третьей группе - 6 (46,1 %) случаев. «Большие» осложнения (NIA-ШВ степени по классификации Clavien-Dindo) в I группе возникли у 25 %, во II группе - у 18,6 %, в III группе - у 7,7 % больных. Независимо от методики миопластики (II и III группы) при этих операциях послеоперационные осложнения промежностной раны наблюдались реже - 30,2 %, чем после простой пластики (I группа), - 51,5 % случаев. Однако в третьей группе осложнения встречались чаще, чем во второй, - 46,1 и 30,2 % соответственно. Значимых различий в частоте осложнений во всех трех группах не выявлено.Заключение. При использовании различных вариантов миопластики после экстралеваторной брюшно-промежностной экстирпации прямой кишки наблюдается тенденция к уменьшению частоты «больших» осложнений со стороны промежностной раны

Ensemble Analysis of Angiogenic Growth in Three-Dimensional Microfluidic Cell Cultures

We demonstrate ensemble three-dimensional cell cultures and quantitative analysis of angiogenic growth from uniform endothelial monolayers. Our approach combines two key elements: a micro-fluidic assay that enables parallelized angiogenic growth instances subject to common extracellular conditions, and an automated image acquisition and processing scheme enabling high-throughput, unbiased quantification of angiogenic growth. Because of the increased throughput of the assay in comparison to existing three-dimensional morphogenic assays, statistical properties of angiogenic growth can be reliably estimated. We used the assay to evaluate the combined effects of vascular endothelial growth factor (VEGF) and the signaling lipid sphingoshine-1-phosphate (S1P). Our results show the importance of S1P in amplifying the angiogenic response in the presence of VEGF gradients. Furthermore, the application of S1P with VEGF gradients resulted in angiogenic sprouts with higher aspect ratio than S1P with background levels of VEGF, despite reduced total migratory activity. This implies a synergistic effect between the growth factors in promoting angiogenic activity. Finally, the variance in the computed angiogenic metrics (as measured by ensemble standard deviation) was found to increase linearly with the ensemble mean. This finding is consistent with stochastic agent-based mathematical models of angiogenesis that represent angiogenic growth as a series of independent stochastic cell-level decisions

The results of use of myoplasty for closure of the pelvic floor defect after extralevator abdominoperineal excision of the rectum

Background. Extralevator abdominoperineal excision is associated with a high incidence of perineal wound complications. There is no uniform standard for choosing the method for pelvic floor reconstruction after extralevator abdominoperineal excision.The purpose of the study was to compare the results of extralevator abdominoperineal excisions of the rectum using various methods of perineal wound closure.Materials and Methods. Between 2014 and 2018, 120 patients underwent extralevator abdominoperineal excisions of the rectum using various options for closure of the pelvic floor. The patients were divided into 3 groups. Group I patients (n=64) underwent simple plasty of the peritoneal wound. Group II patients (n=43) underwent myoplasty using the gluteus maximus muscle. Group III patients (n=13) underwent myoplasty using the rectus abdominis muscle. The incidence of perineal wound complications in the early postoperative period was assessed.Results. The total number of perineal wound complications in Group I, II and III was 33 (51.5 %), 13 (30.2 %), and 6 (46.1 %), respectively. Grade IIIA-IIIB complications according to the Clavien-Dindo classification were observed in 25 % of Group I patients, in 18.6 % of Group II patients and in 7.7 % of Group II patients. Postoperative perineal wound complications occurred more often in Group I patients after simple plasty than in Group II and III patients after myoplasty (51.5 % versus 30.2 %). However, perineal wound complications were observed more often in Group III than in Group II (46.1 % versus 30.2 %, respectively). No significant differences in the frequency of complications between 3 groups were found.Conclusion. Using various options for closure of the pelvic floor after extralevator abdominoperineal excisions of the rectum, there was a tendency to reduction in the incidence of grade IIIA-IIIB perineal wound complications

Development of Short/Small Crack Model for Airframe Material: 7050 Aluminum Alloys

NRC publication: Ye