タイショウ キュウネン タイワン チホウ セイド ノ セイリツ カテイ 1 タイワン ソウトクフ 二 オケル チホウ セイド カイカク ジギョウ ヲ チュウシンニ

論

Синтез сегнетокерамических материалов на основе композиций системы BaO – SrO – TiO₂

В статье приведены результаты синтеза сегнетокерамических материалов на основе соединений и твердых растворов системы BaO – SrO – TiO₂. Полученные твердофазным спеканием сегнетокерамики отличаются стабильностью нелинейных свойств и повышенными эксплуатационными характеристиками.The results of the segnetoceramic synthesis on the base of compounds and solid solutions of the BaO – SrO – TiO₂ system are presented. Received with help of solid-phase sintering segnetoceramics differ by nonlinear properties’ stability and high field-performance data

Dilatometric research into the sintering processes of lithium ferrite with addition of ZrO2

By means of dilatometry method, mechanisms of the sintering of lithium ferrite LiFe5O8 with theaddition of ZrO2 (1 and 2 wt%) have been examined. The samples were prepared by standard ceramictechnology. The zirconium dioxide was added to synthesized powder by mixing in planetary ball mill, and thenthe composite powders were sintered at temperatures of 1100°C. It was found that the addition of zirconium dioxide affect on sintering rate and density of the samples

Whole pelvic helical tomotherapy for locally advanced cervical cancer: technical implementation of IMRT with helical tomothearapy

[[abstract]]Background: To review the experience and to evaluate the treatment plan of using helical tomotherapy (HT) for the treatment of cervical cancer. Methods: Between November 1st, 2006 and May 31, 2009, 10 cervical cancer patients histologically confirmed were enrolled. All of the patients received definitive concurrent chemoradiation (CCRT) with whole pelvic HT (WPHT) followed by brachytherapy. During WPHT, all patients were treated with cisplatin, 40 mg/m(2) intravenously weekly. Toxicity of treatment was scored according to the Common Terminology Criteria for Adverse Events v3.0 (CTCAE v3.0). Results: The mean survival was 25 months (range, 3 to 27 months). The actuarial overall survival, diseasefree survival, locoregional control and distant metastasis-free rates at 2 years were 67%, 77%, 90% and 88%, respectively. The average of uniformity index and conformal index was 1.06 and 1.19, respectively. One grade 3 of acute toxicity for diarrhea, thrombocytopenia and three grade 3 leucopenia were noted during CCRT. Only one grade 3 of subacute toxicity for thrombocytopenia was noted. There were no grade 3 or 4 subacute toxicities of anemia, leucopenia, genitourinary or gastrointestinal effects. Compared with conventional whole pelvic radiation therapy (WPRT), WPHT decreases the mean dose to rectum, bladder and intestines successfully. Conclusion: HT provides feasible clinical outcomes in locally advanced cervical cancer patients. Longterm follow-up and enroll more locally advanced cervical carcinoma patients by limiting bone marrow radiation dose with WPHT technique is warranted

Перспективні види та різновидності роду Juniperus L. для інтродукції у Лісостепу України

The growth conditions of plants of the genus Juniperus L. in the areas of natural distribution are analyzed. The list of potentially promising species for the introduction trial in Forest-Steppe Ukraine is outlined (21 taxa). 75% of perspective species that have not found in the collections of botanical gardens and arboretum come from the Irano-Turanian floristic region.Проаналізовано умови зростання представників роду Juniperus L. у місцях природного поширення. Наведено перелік видів та різновидностей, потенційно перспективних для інтродукційного випробування в умовах Лісостепу України (21 таксон). 75% перспективних для інтродукції видів та різновидностей, які відсутні в колекціях ботанічних садів та дендропарків цього регіону, походять з Ірано-Туранської флористичної області