Aims : The spring habitats of Central Europe are insular biotopes high ecological value. Although subject to severe exploitation pressures, they do not yet have a comprehensive protection status in Switzerland. Contributing this challenge is the controversy involved with their syntaxonomic classification. In context development regional conservation strategy and establishment national inventory...

شرایط افروزش و اشتعال سوخت‌های گداخت هسته‌ای در حضور ناخالص­‌ها، یکی از موارد مهمی است که طراحی قرص‌های سوخت باید مورد توجه قرار گیرد. این مقاله اثر ناخالصی هسته سنگین طلا بر کلیه فرایندهای احتراق پلاسمای غیرتعادلی دوتریم- تریتیم مدل چهار دمایی آن شکل تابع توزیع انرژی رفتار فوتون‌ها تأثیر می‌گذارد بررسی گرفته است. مطالعه شامل اثرات منفی سوخت، طول زمان تشکیل لکه داغ نتایج محاسبات عددی به­ دست آم...

This paper deals with the identification of errors–in–variables models where the additive input and output noises are mutually correlated white processes. It is shown how many estimators proposed in the literature can be described as various special cases of a generalized instrumental variable framework.

In order to improve the Tsai’s two-step camera calibration method, we present a camera model which accounts for major sources of lens distortion, namely: radial, decentering, and thin prism distortions. The coordinates of principle points will be calculated at the same time. In the camera calibration model, considering the errors existing both in the observation vector and the coefficient matri...

The isolation of a cellular factor that was specifically required for transcription from the promoter of the adenovirus early gene iv, an EIa-activated promoter, is described. This factor (EivF) was purified from HeLa cells using a functional transcription assay and identified as a 72,000- to 65,000-dalton protein. DNase I footprinting experiments demonstrated that purified EivF bound to the se...

In this paper, we study a distance-regular graph Γ = (X,R) with an intersection number a2 6= 0 having a strongly closed subgraph Y of diameter 2. Let E0, E1, . . . , ED be the primitive idempotents corresponding to the eigenvalues θ0 > θ1 > · · · > θD of Γ. Let V = C be the vector space consisting of column vectors whose rows are labeled by the vertex set X. Let W be the subspace of V consistin...

A retrospective phylogenetic characterization of the hemagglutinin, neuraminidase and nucleoprotein genes of equine influenza virus A/equine/Kirgizia/26/1974 (H7N7) which caused an outbreak in Kirgizia (a former Soviet Union republic, now Kyrgyzstan) in 1977 was conducted. It was defined that it was closely related to the strain London/1973 isolated in Europe and it shared a maximum nucleotide ...