On the self-testing (m,n)-code checker design

We propose an approach to a self-testing (m, n)code checker design, based on subdividing the set of all code words into special subsets called segments. The checker circuit is constructed by using one- and two-output configurable logic blocks (CLB). Previously, in each output of a CLB, a function representing exactly one segment was implemented. In the proposed approach, at each CLBs output, it is possible to implement functions that represent several segments and to provide the self-testing property. It allows reducing the number of CLBs and simplifying the circuit of the checker

Practical Application of Constructing Professionally Specialized Competencies with the Complex of Pedagogical Technologies: Consequents of the Experiment

В данной статье предложено понятие профессионально-специализированных компетенций, формирование которых является результатом освоения студентами-бакалаврами области музыкально-компьютерных технологий. Приводятся способы формирования рассматриваемых компетенций. Раскрывается содержание комплекса педагогических, в том числе информационных компьютерных технологий, направленных на формирование профессионально-специализированных компетенций студентов на занятиях по учебной дисциплине «Музыкальная информатика». В статье предложен к рассмотрению педагогический эксперимент, целью которого является выявление эффективности представленного комплекса в формировании профессионально-специализированных компетенций студентов-бакалавров третьего курса кафедры музыкально-компьютерных технологий, кино и телевидения ФГАОУ ВПО «Российский государственный профессионально-педагогический университет» (г. Екатеринбург). Определено содержание основных этапов эксперимента, выявлены критерии, показатели и уровни сформированности профессионально-специализированных компетенций в области музыкально-компьютерных технологий. Полученные положительные результаты педагогического эксперимента имеют большое значение как для педагогической теории, так и для практики. К тому же, приводимые в статье результаты подтверждают выдвинутую гипотезу научно-исследовательской работы об оптимальном использовании рассматриваемого педагогического комплекса при формировании в процессе образовательной музыкально-компьютерной деятельности профессионально-специализированных компетенций . This article considers the notion of professionally specialized competencies, constructing of which is the result of the educational process, and gives ways to construct them, among which pedagogical technologies are highlighted. This paper describes the complex of pedagogical (including information computer), technologies, forwarded on the formation of student’s professionally specialized competencies for Music Informatics. The article describes the experiment of this complex with control and experimental groups formed from the number of third-year students of the Department of Music and Computer Technologies, Film and Television of the Russian State Vocational Pedagogical University (Yekaterinburg). The content of the main stages of the experiment is determined, the criteria, indicators and levels of constructing professionally specialized competences in the field of music and computer technologies are revealed. The positive results of the pedagogical experiment obtained are of great importance, both for pedagogical theory and practice. In addition, the results presented in the article confirm the hypothesis of the research work on the optimal use of the pedagogical complex under consideration when constructing the professionally specialized competences of bachelor students in the process of educational musical and computer activities

Coinvasion by the ladybird Harmonia axyridis (Coleoptera: Coccinellidae) and its parasites, Hesperomyces virescens (Ascomycota: Laboulbeniales) and Parasitylenchus bifurcatus (Nematoda: Tylenchida, Allantonematidae), in the Caucasus.

The study of parasites in recently established populations of invasive species can shed light on the sources of invasion and possible indirect interactions between the alien species and native ones. We studied parasites of the global invader Harmonia axyridis (Coleoptera: Coccinellidae) in the Caucasus. In 2012, the first established population of Ha. axyridis was recorded in the Caucasus in Sochi (south of European Russia, Black Sea coast). By 2018, the ladybird had spread to a vast area: Armenia, Georgia and south Russia (Adygea, the Krasnodar territory, the Stavropol territory, Dagestan, Kabardino-Balkaria and North Ossetia). The examination of 213 adults collected in Sochi in 2018 showed that 53% were infested with Hesperomyces virescens fungi (Ascomycota: Laboulbeniales) and that 8% were infested with Parasitylenchus bifurcatus nematodes (Nematoda: Tylenchida, Allantonematidae). The examined Ha. axyridis specimens were free of the parasitic mite Coccipolipus hippodamiae. An analysis of the phylogenetic relationships of P. bifurcatus based on 18S rDNA confirmed the morphological identification of this species. Hesperomyces virescens and P. bifurcatus were first recorded in the Caucasus and Russia, although they are rather widespread in Europe. This likely indicates that they appeared as a result of coinvasion with their host because the populations of Ha. axyridis, He. virescens and P. bifurcatus in the Caucasus are isolated from the main parts of the ranges of these species in Europe. The nearest localities of Ha. axyridis is on another shore of the Black Sea, and the nearest localities of He. virescens and P. bifurcatus are more than 1000 km from the Caucasus. It is impossible to determine whether the first founders of the Caucasian population were infested with the parasites or whether the parasites were introduced by specimens of Ha. axyridis that arrived later from Europe. Harmonia axyridis was released in the region for pest control, but laboratory cultures are always free of He. virescens and P. bifurcatus. Therefore, the detection of He. virescens and P. bifurcatus indicates that the population of Ha. axyridis in the Caucasus could not have derived exclusively from released specimens. We did not find He. virescens on 400 specimens of 29 other ladybird species collected from the same localities as Ha. axyridis in the Caucasus. No reliable correlation between infestation by He. virescens and that by P. bifurcatus has been found. In addition to these two parasites, an unidentified species of the order Mermithida was recorded. This is the first documented case of Ha. axyridis infestation by a parasitic nematode of this order in nature