60 research outputs found
Scientific School Image Development of a University Based on the System of Public Relations
The article considers the problem of educational institution promotion in the external socio-cultural environment via innovative management, in particular, the Public relations system. The solution to this problem is important in terms of fierce competition in the educational services market. The authors draw attention to the fact that scientific schools as unique associations of university science representatives can be considered as one of the effective elements of the university image policy development. They outlined the primary tasks of the university scientific school positive image development in the public relations system, PR tools are highlighted in the internal university environment and in the external sphere of the university, where the following segments are considered as the target audience: the scientific community outside the university, potential employers of university graduates, and the population represented by potential applicants and their parents
Possible Procedure Modification and a System Likeness for Object Identifying on Remote Sensing Images
ABSTRACT Modified grey-scale image objects classification on the basis of variance analysis of their vectorial models is suggested. After calculating the generalized, the intergroup and the average of particular dispersions the variance ratio of vectorial models of analyzing objects is computed and classification on the basis of threshold values of their similarity is made. Experimental classification data are cited
History of the Hall Thrusters Development in USSR
Abstract: As it is well known two types of the so-called "Hall Thrusters" had been developed in USSR, namely: the stationary plasma thrusters (SPT) and thrusters with anode layer (TAL). In the SPT and TAL the ions acceleration by an electric field within the gas were designed, created and tested. They were able to operate with gaseous propellants (Xe, Kr, Ar) within the discharge voltage range of (100-600) V and discharge powers (1-5) kW with thrust efficiency till 40% and specific impulses (1000-1800) s. Obtained performance level was estimated as prospective enough because it was higher than that one of the other EP types within the mentioned range of specific impulses. Therefore at level of the State Committee of Atomic Energy (SCAE) of USSR it was decided to realize the first SPT flight test and in 1972 SPT was successfully * Chief scientist, professor, department of the stationary plasma thrusters, [email protected]. † Chief designer on EP direction, Dr, EPS design development department. ‡ General designer of EDB "Fakel", Dr. § Head of EP laboratory, Dr
Patient routing and process approach implementation for regional oncology service
Background. Cancer care involves a multidisciplinary approach to diagnosis and treatment of patients. A complex interaction of actors in the deployment of oncology services dictates usage of modern management technologies for improving the quality and efficiency of patient care through processes optimisation.Objectives. Provision of recommendations for patient routing based on research into the oncology service inter-level information exchange, integration of the process approach and electronic services. The lack of a unified information space with a regional oncology service has been explained. Measures are proposed for the patient routing optimisation as part of establishing a unified digital oncology service circuit.Methods. The oncology service was effectively remodelled through functional and information engineering of electronic services and the process management integration to establish a horizontal decision flow between facilities and employees on a process level bypassing the supervisor coordination. Statistical approaches were used to analyse the oncological patient population.Results. The following electronic services have been implemented: specialised patient referral routing, telemedicine and teleradiology. A comprehensive information framework has been created comprising medical, laboratory and radiological information subsystems integrated through regional electronic services of the unified state healthcare information platform. The goals, objectives, general principles, architecture and expected social economic impact on healthcare of Krasnodar Krai have been defined.Conclusion. Use of electronic services ensures an improved quality of specialised care and effective routing of patients. We perceive prospects of the integrated information platform in the extension and improvement of its subsystems’ functionality and content, sourcing more data providers and the circuit expansion to the federal and regional levels
Ellinaite, CaCr2O4, a New Natural Post-Spinel Oxide from Hatrurim Basin, Israel, and Juína Kimberlite Field, Brazil
Ellinaite, a natural analog of the post-spinel phase β-CaCr2O4, was discovered at the Hatrurim Basin, Hatrurim pyrometamorphic formation (the Mottled Zone), Israel, and in an inclusion within the super-deep diamond collected at the placer of the Sorriso River, Juína kimberlite field, Brazil. Ellinaite at the Hatrurim Basin is confined to a reduced rankinite-gehlenite paralava, where it occurs as subhedral grains up to 30μm in association with gehlenite, rankinite and pyrrhotite or forms the rims overgrowing zoned chromite-magnesiochromite. The empirical formula of the Hatrurim sample is (Ca0.960Fe0.0162+Na0.012Mg0.003)0.992(Cr1.731V0.1833+Ti0.0683+Al0.023Ti0.0034+)2.008O4. The mineral crystallizes in the orthorhombic system, space group Pnma, unit-cell parameters refined from X-ray single-crystal data: A 8.868(9), b 2.885(3), c 10.355(11)Å, V 264.9(5)Å3 and ZCombining double low line4. The crystal structure of ellinaite from the Hatrurim Basin has been solved and refined to R1Combining double low line0.0588 based on 388 independent observed reflections. Ellinaite in the Juína diamond occurs within the micron-sized polyphase inclusion in association with ferropericlase, magnesioferrite, orthorhombic MgCr2O4, unidentified iron carbide and graphite. Its empirical formula is Ca1.07(Cr1.71Fe0.063+V0.06Ti0.03Al0.03Mg0.02Mn0.02)ς1.93O4. The unit-cell parameters obtained from HRTEM data are as follows: Space group Pnma, a 9.017, b 2.874Å, c 10.170Å, V 263.55Å3, ZCombining double low line4. Ellinaite belongs to a group of natural tunnel-structured oxides of the general formula AB2O4, the so-called post-spinel minerals: Marokite CaMn2O4, xieite FeCr2O4, harmunite CaFe2O4, wernerkrauseite CaFe23+Mn4+O6, chenmingite FeCr2O4, maohokite MgFe2O4 and tschaunerite Fe(FeTi)O4. The mineral from both occurrences seems to be crystallized under highly reduced conditions at high temperatures (>1000°C), but under different pressure: Near-surface (Hatrurim Basin) and lower mantle (Juína diamond). © 2021 Victor V. Sharygin et al.Raman spectroscopy and EBSD investigations for the Hatrurim ellinaite were done on state assignment of IGM SB RAS (IX.125.2) and the Initiative Project of Ministry of Science and Higher Education of the Russian Federation (Act 211 of the Government of the Russian Federation (grant agreement no. 02.A03.21.0006)). SEM and microprobe studies for the Hatrurim ellinaite were supported by the Russian Science Foundation (grant no. 17-17-01056p). Crystallographic studies of the Hatrurim ellinaite were provided by the Russian Science Foundation (grant no. 18-17-00079)
Advances in and Issues With Minimally Invasive Surgery for Rectal Cancer in Elderly Patients
Colorectal cancer ranks third after breast cancer in terms of incidence and second after lung cancer in terms of mortality.Management of rectal cancer requires a multidisciplinary approach, with the surgical management playing the main role. There are currently three resective techniques that complement the traditional open surgery: laparoscopic surgery, robotic surgery, and transanal total mesorectal excision.Rectal cancer in elderly patients is particularly hard to diagnose and treat surgically due to multiple comorbidities and limited functional reserve. Treatment of such patients may be associated with poorer outcomes after both open and minimally invasive surgery.This article reviews the current state of advances in minimally invasive surgery for rectal cancer in general and in elderly patients in particular
Оценка эффективности локальной стероидной терапии у детей с олигоартикулярным вариантом ювенильного артрита: результаты ретроспективного исследования
Background. Despite the progress in diagnosis and treatment of chronic rheumatic diseases in children, the choice of anti-inflammatory drugs in case of the onset of oligoarticular juvenile idiopathic arthritis (JIA) still remains relevant. Till present, pediatric rheumatologists have not reached a consensus on this issue yet.The aim of this study was to search for predictors of early failure of local steroid therapy and assessment of its feasibility in patients with oligoarticular JIA.Materials and methods. In a retrospective study, 92 children aged 11 months – 9 years with chronic oligoarticular JIA without extra-articular manifestations were monitored. The features of the clinical, instrumental and laboratory diagnosis during the disease onset were studied, along with the dynamics of the articular syndrome and the effectiveness of intra-articular administration of corticosteroid drugs.Results and discussion. The data on 92 children with 164 active joints who received 218 local intra-articular injections of triamcinolone acetonide at the onset of the disease were analyzed. Intra-articular injections of triamcinolone acetonide at a dose of 20–40 mg were performed with an interval of 3, 6, and 12 months, depending on the intensity of the disease. In about one third of children with oligoarticular JIA, arthritis became inactive on average after two intra-articular injections of triamcinolone acetonide. The study did not reveal the predictors of early ineffective topical corticosteroid monotherapy in children. No clinical, instrumental, and laboratory signs were identified that would directly indicate the need for early therapy with methotrexate.Conclusion. Triamcinolone acetonide is an effective and safe drug for children with oligoarticular JIA. Despite the widespread use of biological, gene, and other innovative therapies, application of local corticosteroids as the firstline therapy in children with oligoarticular JIA should not be neglected. Актуальность. Несмотря на большой прогресс в диагностике и лечении ревматических заболеваний у детей, все еще остается актуальным вопрос выбора противовоспалительной терапии в случае дебюта хронического олигоартрита. Единого мнения на этот счет у детских ревматологов нет и по настоящий день. Цель. Поиск предикторов ранней неэффективности и оценка целесообразности локальной стероидной монотерапии у пациентов с дебютом олигоартикулярного варианта ювенильного артрита. Материалы и методы. Основу ретроспективного исследования составили 92 ребенка в возрасте от 11 мес до 9 лет с хроническим олигоартритом без экстраартикулярных проявлений (олиго-ЮА). Были изучены особенности клинико-инструментальной и лабораторной диагностики в дебюте заболевания, динамика суставного синдрома и эффективность внутрисуставного введения глюкокортикостероидного препарата.Результаты. Проанализированы данные 92 детей со 164 «активными» суставами, которые получили 218 изолированных внутрисуставных манипуляций по введению стероидного препарата (триамцинолон ацетонид). Триамцинолон ацетонид вводился внутрисуставно в дозе 20–40 мг с интервалом 3, 6, 12 мес в зависимости от активности заболевания. Около одной трети детей с олиго-ЮА достигли неактивной стадии болезни в среднем после двукратного введения данного препарата. Исследование не позволило выявить предикторов ранней неэффективности монотерапии локальными стероидными препаратами у детей. Не выявлено достоверных клинико-инструментальных и лабораторных признаков, которые напрямую указывали бы на необходимость начала ранней терапии препаратом «Метотрексат».Заключение. Триамцинолон ацетонид является эффективным и безопасным препаратом у детей с олигоартикулярным вариантом ювенильного артрита. Несмотря на популяризацию генно-инженерной биологической терапии, не следует пренебрегать лечением локальными стероидными препаратами как первой линией противоревматической терапии у детей.
Миокардиальное повреждение при некардиальной хирургии: трудности диагностики
A new concept was adopted by the Fourth Universal Definition of MI Expert Consensus Document in 2018 – periprocedural myocardial injury after cardiac- and noncardiac interventions, which is distinct from myocardial infarction.It is difficult to diagnose a heart attack and myocardial damage after noncardiac surgery.Postoperative myocardial injury increases mortality and worsens the long-term prognosis and quality of treatment.The quality of surgical care is determined by surgical techniques and the course of the postoperative period. Although complications often negate the results of brilliantly performed surgery, many of them would happen irrespective of surgeon`s actions. The development of complications determining the outcome of treatment can be associated with cardiac pathology. Cardiac complications may develop due to existing comorbidities, hemodynamic instability during surgery, cardiotoxic effect of drugs, etc. In 40% of cases, the risk of cardiac death after noncardiac surgery is associated with the development of perioperative myocardial infarction or myocardial injury. Myocardial infarction is the most demonstrative complication, although it is difficult to diagnose in the perioperative period in case of asymptomatic course. The link between postoperative myocardial infarction and lethality is beyond doubt. Adopted in 2018, the Fourth Universal Definition of MI Expert Consensus Document introduced a new concept of periprocedural myocardial injury after cardiac- and noncardiac interventions, which are distinct from myocardial infarction. Myocardial injury requires laboratory tests to be diagnosed. However, myocardial injury itself affects postoperative mortality and significantly worsens the long-term prognosis and quality of treatment. This article reports the features of the etiopathogenetic mechanisms of cardiac complications during surgical care, as well as the multifactorial genesis of myocardial injury. The analysis of modern scientific literature on the diagnosis of myocardial damage is given. The need for early diagnosis of myocardial damage to create optimal management tactics for patients undergoing noncardiac interventions is demonstrated.Перипроцедурное миокардиальное повреждение после кардио- и некардиохирургических вмешательств, отличное от инфаркта миокарда, – новое понятие, принятое в 2018 г. согласительным международным документом «Четвертое универсальное определение инфаркта миокарда».Диагностика инфаркта и повреждения миокарда после некардиальных хирургических вмешательств затруднена.Миокардиальное повреждение увеличивает послеоперационную летальность и ухудшает отдаленный прогноз и качество лечения.Качество оказания хирургической помощи определяется не только техникой, но и течением послеоперационного периода. Осложнения зачастую нивелируют результаты успешно выполненной операции, при этом необходимо понимать, что многие осложнения не зависят непосредственно от хирурга. Развитие осложнений, определяющих исход лечения, может быть связано с кардиальной патологией. Причин кардиальных осложнений много: имеющаяся сопутствующая патология, нестабильность гемодинамики во время оперативного вмешательства, кардиотоксическое действие лекарственных препаратов и другие. Риск кардиальной смерти после внесердечных хирургических вмешательств в 40% случаев связан с периоперационными инфарктом миокарда (ИМ) или миокардиальным повреждением. ИМ является наиболее демонстративным осложнением, хотя и имеющим трудности в диагностике в периоперационном периоде в связи с зачастую асимптомным течением. Связь послеоперационного ИМ с летальностью сомнений не вызывает. В опубликованных в 2018 г. международных рекомендациях «Четвертое универсальное определение инфаркта миокарда» перипроцедурное миокардиальное повреждение после кардио- и некардиохирургических вмешательств отделено от ИМ и выделено в отдельную проблему. Диагностировать миокардиальное повреждение можно только с помощью лабораторных тестов, при этом само по себе повреждение миокарда ухудшает показатели послеоперационной летальности, отдаленный прогноз и качество жизни пациентов. В данном обзоре отражены особенности этиопатогенетических механизмов кардиальных осложнений в условиях оказания хирургической помощи, многофакторный генез повреждения миокарда. Приведен анализ современной научной литературы по диагностике миокардиального повреждения. Показана необходимость ранней диагностики повреждения миокарда для создания оптимальной тактики ведения больных при некардиохирургических вмешательствах
Surgical treatment of portal hypertension complications in patients with liver cirrhosis
Objective: Improving the results of surgical treatment of portal hypertension complications in patients with liver cirrhosis.Material and methods: The results of medical care for 328 patients with liver cirrhosis, who were treated in the surgical departments of the central district and city hospitals of the Krasnodar Region, were analyzed. The effectiveness of minimally invasive surgical treatment of portal hypertension complications in 832 patients with liver cirrhosis treated at the Regional Clinical Hospital no. 2 of the Ministry of Health of the Krasnodar Region were also evaluated.Results: The mortality rate in patients with liver cirrhosis, admitted in first-level institutions of medical care due to acute bleeding from esophageal varices, reached 26.3%. In conditions of surgical treatment of complications of portal hypertension in a third-level institution of specialized care it did not exceed 4.7%.Conclusion: The optimal approach to the surgical treatment of patients with liver cirrhosis is to stop the bleeding from esophageal varices at the first stage of medical care and to treat portal hypertension complications using minimally invasive technologies in a multidisciplinary clinic involving a multidisciplinary team of doctors
- …