ФОРМИРОВАНИЕ ФЕНОТИПИЧЕСКОЙ СТРУКТУРЫ ПОПУЛЯЦИЙ КОЛОРАДСКОГО ЖУКА (LEPTINOTARSA DECEMLINEATA SAY) В УСЛОВИЯХ ЭКОЛОГИЧЕСКИХ СТРЕССОВ

The phenomorphic distribution of pronotum cover spot pattern of Colorado potato beetle (Lepinortarsa decemlineata Say) imago in the Republic of Belarus and the Republic of Moldova is studied. The genetic heterogeneity of the Belarusian andMoldavian phytophage populations is determined. The dominance of No.1, 3 and 6 phenomorphs in the Colorado potato beetle populations based on the imago pronotum cover spot pattern (15.4–25.3 % of all individuals) is determined, the phenomorphsNo.7, 8 and 9 are rare (the frequency of occurrence up to 3.0 %). It is determined that on the territory of Moldova in the population of Colorado potato beetle phenomorphs No. 3 and 6 dominate by imago front back figure, by frequency of occurrence 15.0–17.8 % and 38.4–40.2 % from all the individuals, respectively, the phenomorphs No.7 (1.8–2.1 %) and No.8 (1.8–2.3 %) are rare. It is determined that the Belarusian population belongs to the northern and central ecotypes, the Moldavian one – to the southeast ecotype. The phenotypic structure diversity under the ecological stress conditions is shown. The populations diagnosis according to pyrethroid chemical group preparations resistance is specified by the morphotypic method. The frequency of occurrence of sensitive, tolerant, resistant and highly resistant pest populations in different geographical regions of the phytophage habitat is revealed. In Belarus the sensitive populations were present in 17.1 %, in Moldova – in 47.8 %, the resistant populations – 43.9 and 21.7 %, respectively. Highly resistant populations were discovered in insignificant number and were met at the same level: in Belarus – 4.9 %, in Moldova – 4.3 %. The results obtained will allow to substantiate the development of ecologized potato protection system from the Colorado potato beetle using entomopathogenic microorganisms and biologically active substances of plant origin, that would prevent resistance of the Colorado potato beetle to chemical insecticides. Acknowledgments. The study is performed with financial support of the Belarusian Republican Foundation of Fundamental Researches within the frameworks of project No. Б13МЛД-008.Изучено распределение феноморф рисунка центральной части переднеспинки у имаго колорадского жука (Leptinotarsa decemlineata Say), обитающего в Республике Беларусь и Республике Молдова. Установлена генотипическая разнокачественность белорусской и молдавской популяций фитофага. В популяциях колорадского жукав Беларуси доминировали феноморфы № 1, 3 и 6 по рисунку переднеспинки имаго (15,4–25,3 % всех особей), редкими являлись феноморфы № 7, 8 и 9 (частота встречаемости до 3,0 %). В популяции колорадского жука в Молдове доминировали феноморфы № 3 и 6 по рисунку переднеспинки имаго с частотой встречаемости 15,0–17,8 и 38,4–40,2 % от всех особей соответственно, редкими являлись феноморфы № 7 (1,8–2,1 %) и № 8 (1,8–2,3 %). Выявлена принадлежность белорусской популяции к северному и центральному экотипам, молдавской популяции – к юго-восточному экотипу. Показана изменчивость фенотипической структуры под влиянием экологических стрессов. Проведено диагностирование популяций по резистентности к инсектицидным препаратам из класса пиретроидов с помощью морфотипического метода. Выявлена частота встречаемости чувствительных, толерантных, резистентных и высокорезистентных популяций вредителя в различных географических регионах обитания фитофага. В Беларуси чувствительные популяции встречались в 17,1 % случаев, в Молдове – в 47,8 %, резистентные популяции – 43,9 и 21,7 % случаев соответственно. Высокорезистентные популяции были обнаружены в незначительном количестве и встречались на одинаковом уровне: в Беларуси – 4,9 %, Молдове – 4,3 %. Полученные результаты позволят обосновать разработку экологизированной системы защиты картофеля от колорадского жука с использованием энтомопатогенных микроорганизмов и биологически активных веществ растительного происхождения, что будет препятствовать формированию резистентности колорадского жука к химических инсектицидам. Благодарности. Работа выполнена при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований в рамках проекта № Б13МЛД-008

Возможность оценки долговечности жаростойких покрытий

This article discusses a method for predicting the durability of heat resistant coatings based on the results of laboratory tests, taking into account the applied coating thickness and type of alloy. The dependencies between efficiency of the coatings and thickness, obtained by various methods with alloys of different chemical composition were found out.В статье рассматривается способ прогнозирования долговечности жаростойких покрытий по результатам проведенных лабораторных испытаний с учетом наносимой толщины покрытия и материала сплава. Установлены зависимости эффективности покрытий, получаемых различными способами на сплавах различного химического состава, от их толщины

ABILITY TO ASSESS THE DURABILITY OF HEAT RESISTANT COATINGS

This article discusses a method for predicting the durability of heat resistant coatings based on the results of laboratory tests, taking into account the applied coating thickness and type of alloy. The dependencies between efficiency of the coatings and thickness, obtained by various methods with alloys of different chemical composition were found out

EURObservational Research Programme: Regional differences and 1-year follow-up results of the Heart Failure Pilot Survey (ESC-HF Pilot)

AimsThe ESC-HF Pilot survey was aimed to describe clinical epidemiology and 1-year outcomes of outpatients and inpatients with heart failure (HF). The pilot phase was also specifically aimed at validating structure, performance, and quality of the data set for continuing the survey into a permanent Registry.MethodsThe ESC-HF Pilot study is a prospective, multicentre, observational survey conducted in 136 Cardiology Centres in 12 European countries selected to represent the different health systems across Europe. All outpatients with HF and patients admitted for acute HF on 1 day per week for eight consecutive months were included. From October 2009 to May 2010, 5118 patients were included: 1892 (37%) admitted for acute HF and 3226 (63%) patients with chronic HF. The all-cause mortality rate at 1 year was 17.4% in acute HF and 7.2% in chronic stable HF. One-year hospitalization rates were 43.9% and 31.9%, respectively, in hospitalized acute and chronic HF patients. Major regional differences in 1-year mortality were observed that could be explained by differences in characteristics and treatment of the patients.ConclusionThe ESC-HF Pilot survey confirmed that acute HF is still associated with a very poor medium-term prognosis, while the widespread adoption of evidence-based treatments in patients with chronic HF seems to have improved their outcome profile. Differences across countries may be due to different local medical practice as well to differences in healthcare systems. This pilot study also offered the opportunity to refine the organizational structure for a long-term extended European network. © 2013 The Author

EURObservational Research Programme: Regional differences and 1-year follow-up results of the Heart Failure Pilot Survey (ESC-HF Pilot)

AimsThe ESC-HF Pilot survey was aimed to describe clinical epidemiology and 1-year outcomes of outpatients and inpatients with heart failure (HF). The pilot phase was also specifically aimed at validating structure, performance, and quality of the data set for continuing the survey into a permanent Registry.MethodsThe ESC-HF Pilot study is a prospective, multicentre, observational survey conducted in 136 Cardiology Centres in 12 European countries selected to represent the different health systems across Europe. All outpatients with HF and patients admitted for acute HF on 1 day per week for eight consecutive months were included. From October 2009 to May 2010, 5118 patients were included: 1892 (37%) admitted for acute HF and 3226 (63%) patients with chronic HF. The all-cause mortality rate at 1 year was 17.4% in acute HF and 7.2% in chronic stable HF. One-year hospitalization rates were 43.9% and 31.9%, respectively, in hospitalized acute and chronic HF patients. Major regional differences in 1-year mortality were observed that could be explained by differences in characteristics and treatment of the patients.ConclusionThe ESC-HF Pilot survey confirmed that acute HF is still associated with a very poor medium-term prognosis, while the widespread adoption of evidence-based treatments in patients with chronic HF seems to have improved their outcome profile. Differences across countries may be due to different local medical practice as well to differences in healthcare systems. This pilot study also offered the opportunity to refine the organizational structure for a long-term extended European network