Polska pieśń religijna w XV wieku

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A carbocationic route to 3-substituted 1,4-cycloheptadienes

The Lewis acid catalysed reaction of 5-chloro-1, 3-cycloheptadiene 4 with silyl enol ethers yields -cycloheptadienyl substituted carbonyl compounds in high yield. Since 4 is easily prepared from cycloheptatriene, and the cycloheptadienyl cation 3 is preferably attacked at 3-position, this reaction opens an efficient access to 3-substituted 1,4-cycloheptadienes

WYNIKI UŻYTKOWANIA ROZPŁODOWEGO KONIKA POLSKIEGO Z WYBRANEJ Z STADNINY KONI W POLSCE

The analysis of Polish Primitive Horse reproduction, in the stable breeding in Dobrzyniewo, was carried out in the period 1993/1994 – 2003/2004. On the basis of the carried out analysis it is evident systematic increase (positive trend) of basic coefficients of reproduction (foaling, fertility, fecundity, birth) and a decrease of coefficients of infertility and abortions. On the other hand leading sires were stallions: Mikrus and Jehol, which were utilised in reproduction for the period of 11 years while mares covered by these stallions had relatively high coefficients of reproduction.Analizę rozrodu konika polskiego z hodowli stajennej w Dobrzyniewie przeprowadzono za okres 1993/1994 – 2003/2004. Z przeprowadzonej analizy wynika systematyczny wzrost (trend dodatni) podstawowych wskaźników rozrodu (źrebności, płodności, plenności i wyźrebień), a spadek wskaźnika jałowienia i poronień. Z kolei czołowymi reproduktorami okazały się ogiery: Mikrus i Jehol, które były użytkowane rozpłodowo przez okres 11 lat, natomiast klacze kryte tymi ogierami charakteryzowały się stosunkowo wysokimi wskaźnikami rozrodu

THE ISSUE OF NETWORK INTERACTION IN THE EDUCATIONAL PROCESS

Purpose. The article discusses the issues related to the organization of network interaction in the educational process. The purpose of the work is to study the concepts of “interaction” and “network interaction” provided by scientists who have studied this topic, as well as to determine authors’ definition. Methods. The authors conduct a review of the literature sources on the issue under study as well as use methods of comparative analysis. Results. The network interaction between teachers and students is a social, psychological and pedagogical phenomenon. It improves students’ skills of self-consciousness, self-organization and self-assessment. Being a collaborative educational activity, it is a tool for students’ development and self-development. The use of remote technologies and possibilities of communication resources contributes to the growth of students’ informational culture

Неотектоническое районирование трассы газопровода Починки – Грязовец МосковскоНижегородского региона

Based on the structural-geomorphological method, neotectonic zonation of the Pochinki-Gryazovets gas pipeline was carried out for the safety purposes. Taking into account the probable stress sources, the geodynamic conditions of block structures formation are considered. Studies made it possible to subdivide the pipeline area into two parts: southern and northern. The southern part of the gas pipeline is located within the block characterized by tensile stress conditions; the northern part of pipeline relates to the block affected by compressive stress. The boundary between these blocks is considered as a geodynamic active zone and poses the risk for the pipeline safety.На основе структурно-геоморфологического метода впервые проведено неотектоническое районирование газопроводной трассы Починки – Грязовец с целью безопасной эксплуатации. С учетом вероятных источников напряжений рассмотрены геодинамические условия формирования блоковых структур. Исследования позволили разделить протяженную трассу газопровода на две части: южную и северную. Южная часть трассы находится в пределах блока, подверженного влиянию напряжений растяжения, северная – в пределах блока, подверженного влиянию напряжений сжатия. Граница между этими блоками рассматривается в качестве геодинамически активной зоны и геоэкологически значимой для трубопроводной трассы