Investigation of the System Zr-Fe-Si

The isothermal section of the system Zr-Fe-Si has been investigated using X-ray diffractometry and film technique. The results were complemented with micrographic data. The existence of the compounds found previously: Zr4Fe4Si7 (V), ZrFe2Si2 (D), ZrFeSi (E), Zr2Fe3Si (Ai) was definitely confirmed. A new ternary phase of the composition Zr6Fe16Sh belonging to the Mg6Cu16Shtype was found (a= 11.53 ± 0.01 A). Zirconium stabilizes the crystal structure of Fe5Si3 which as a pure phase exists only in the interval from 1090 to 825° C. The isoconcentration tie-line at 66.7 a/o Zr indicates the existence of an unbroken series of solid solutions between Zr2Fe and Zr2Si. ZrFe2 dissolves approx. 5 p. c. of silicon. The solubility of the third component in all other binary phases was found to be very small

ДИСТАНЦИОННОЕ ОПТИЧЕСКОЕ ЗОНДИРОВАНИЕ АЭРОЗОЛЬНЫХ ЗАГРЯЗНЕНИЙ ВОЗДУХА

Сhallenges of retrieval of atmospheric fine particulate matter maps from data of the ground lidar and multispectral satellite imagery are presented. Strategies to multifrequency lidar calibration and to solution of radiative transfer and aerosol light scattering invers problems are suggested. The application of the developed strategies to the real-time monitoring of the atmospheric particulate matter pollution transport during wildfires is provided.Рассматриваются задачи оперативного получения карт загрязнений атмосферы мелкодисперсными фракциями аэрозоля по данным наземного лидарного зондирования и многоспектральной спутниковой съемки. Предложены новые методы калибровки многочастотного лидара и решения обратных задач по переносу излучения в атмосфере и аэрозольному светорассеянию. Показана возможность использования разработанных методов для оперативного слежения за переносом аэрозольных загрязнений в атмосфере во время природных пожаров

SURGERY IMPACT ON LIFE QUALITY DATA IN CHILDREN WITH DETACHED RETINA

Background. Assessment of life quality while carrying out a vitrectomy in children with detached retina. Material and Methods. Twenty three patients (23 eyes) aged from 10 up to 17 years from with detached retina were examined. Surgery included carrying out a standard three-port vitrectomy and laser endocoagulation of retina vessels. All patients have been divided by method of casual selection into 3 groups. In the I group (n = 8) during the surgery the balanced salt solutions (Balansed Salt Solution – BSS) without antioxidants were used and additional purpose of the antioxidant medicines per os was not carried out; in the II group (n = 8) at performing surgery BSS with antioxidants (glutathione) – BSS plus were used; in the III group (n = 7) in the postoperative period in addition per os antioxidant medicines were administered for 3 months. In all patients the research of life quality on the basis of the reduced Russified version of the questionnaire VFQ-25 was conducted. The control group consisted of 10 children of the corresponding age and sex, the welfare and national identity, without contraindications to surgery in the area of a vitrealny cavity. Statistical processing of the received findings has been executed by means of a package of application programs of the statistical analysis AnalystSoft, BioStat 2007. Results. In a week after surgery increase in visual acuity was not observed. Six months later reliable increase in visual acuity was noted. The highest final rates of a vasometry were observed in the II group, patients of the I group had minimum values. The minimal progressing of a cataract was observed in patients of the II group.Conclusion. Surgery for detached retina positively influenced rates of life quality in children in the early and long-term postoperative period

МЕТОДЫ И ПРОГРАММНО-АППАРАТНЫЕ СРЕДСТВА ИССЛЕДОВАНИЯ КРОВЕНОСНЫХ СОСУДОВ И ТКАНЕЙ ГЛАЗА ЧЕЛОВЕКА

The article provides the reader with a number of strategies to the research of blood vessels and tissues of human eye by contactless optical methods. Techniques and apparatus for measuring of geometric parameters of the blood vessels, blood flow velocity and concentrations of ocular tissues chromophores are described. The research is aimed to reveal the most effective diagnostic criteria of vascular abnormalities by means of affordable to measure indicators.Предлагается ряд подходов к исследованию кровеносных сосудов и тканей глаза человека in vivo бесконтактными оптическими методами. Описаны методики и средства измерения геометрических параметров сосудов, скорости кровотока и концентраций хромофоров в тканях глаза. Исследования направлены на поиск новых эффективных технологий получения in vivo диагностических признаков сосудистых патологий

Minimal renal toxicity after Rituximab DHAP with a modified cisplatin application scheme in patients with relapsed or refractory diffuse large B-cell lymphoma

Background: Rituximab (R) in combination with DHAP is a widely accepted salvage regimen for patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL). A common adverse effect of this protocol is renal toxicity which may result in treatment discontinuation. Assuming that a lower single dose of cisplatin over several days would reduce renal toxicity, our institution has chosen to administer cisplatin in a dosage of 25 mg/m2 per day as a 3-h infusion over 4 consecutive days. Methods: In this study, we analyzed the renal function of 122 patients with relapsed or refractory DLBCL treated with R-DHAP at our institution. Overall, 256 R-DHAP cycles were administered. 31 (25 %), 61 (50 %), 14 (12 %) and 16 (13 %) patients received one, two, three or four R-DHAP courses, respectively. Results: A glomerular filtration rate (GFR) decrease was observed after each R-DHAP cycle. However, in none of the subgroups the median GFR was lower than 60 ml/min/1.73 m2. In most patients, only renal impairment stage I and II was observed. Renal impairment stage III was seen in 10 % and stage IV only in 1 % of patients. Conclusion: We conclude that a modified R-DHAP regimen with administration of cisplatin 25 mg/m2 over 4 consecutive cycles leads only to minimal renal toxicity

Bioethical problems in lukas bärfuss's drama

The article deals with the literary work by modern Swiss dramatist Lukas Bärfuss who has reflected an important tendency of young German language drama - the development from formal experiments of postmodern theatre to actual problems of today, to important philosophical and social and psychological issues of modernity. One of the problem spheres that perturbs the playwright is bioethics and spectrum of problems and points at issue related to it. This article analyzes two plays by L. Bärfuss devoted to this range of problems - "Alisa's Trip to Switzerland" and "The Test". The first play focuses on the problem of euthanasia, here the arguments "for" and "against" are presented in a literary form. The second one concerns the DNA test and an example of its negative influence on family and interpersonal relations. The author's point of view is revealed in the analysis of the problem-thematic, narrative-compositional level of the plays and means of artistic figurativeness, to which the dramatist resorts. The authors of the article come to the conclusion that the plays by L. Bärfuss are a meaningful example of the artistic understanding of philosophical and socio-psychological problems that stir the modern society and are weighty contribution to the polemics developed around the problems of bioethics

Bioethical problems in lukas bärfuss's drama

The article deals with the literary work by modern Swiss dramatist Lukas Bärfuss who has reflected an important tendency of young German language drama - the development from formal experiments of postmodern theatre to actual problems of today, to important philosophical and social and psychological issues of modernity. One of the problem spheres that perturbs the playwright is bioethics and spectrum of problems and points at issue related to it. This article analyzes two plays by L. Bärfuss devoted to this range of problems - "Alisa's Trip to Switzerland" and "The Test". The first play focuses on the problem of euthanasia, here the arguments "for" and "against" are presented in a literary form. The second one concerns the DNA test and an example of its negative influence on family and interpersonal relations. The author's point of view is revealed in the analysis of the problem-thematic, narrative-compositional level of the plays and means of artistic figurativeness, to which the dramatist resorts. The authors of the article come to the conclusion that the plays by L. Bärfuss are a meaningful example of the artistic understanding of philosophical and socio-psychological problems that stir the modern society and are weighty contribution to the polemics developed around the problems of bioethics

Bioethical problems in lukas bärfuss's drama

The article deals with the literary work by modern Swiss dramatist Lukas Bärfuss who has reflected an important tendency of young German language drama - the development from formal experiments of postmodern theatre to actual problems of today, to important philosophical and social and psychological issues of modernity. One of the problem spheres that perturbs the playwright is bioethics and spectrum of problems and points at issue related to it. This article analyzes two plays by L. Bärfuss devoted to this range of problems - "Alisa's Trip to Switzerland" and "The Test". The first play focuses on the problem of euthanasia, here the arguments "for" and "against" are presented in a literary form. The second one concerns the DNA test and an example of its negative influence on family and interpersonal relations. The author's point of view is revealed in the analysis of the problem-thematic, narrative-compositional level of the plays and means of artistic figurativeness, to which the dramatist resorts. The authors of the article come to the conclusion that the plays by L. Bärfuss are a meaningful example of the artistic understanding of philosophical and socio-psychological problems that stir the modern society and are weighty contribution to the polemics developed around the problems of bioethics