نتایج جستجو برای: yuri lotmn 1993
تعداد نتایج: 57901 فیلتر نتایج به سال:
Bengt Bischof,1 Andrei N. Slavin,2 Hartmut Benner,1 and Yuri Kivshar3 1Institut für Festkörperphysik, Technische Universität, Darmstadt, D-64289 Darmstadt, Germany 2Department of Physics, Oakland University, Rochester, Michigan 48309, USA 3Nonlinear Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia sReceived 27 No...
1. The Classical Decision Problem by Egon Börger, Erich Grädel and Yuri Gurevich. Reviewed by Dan A. Simovici. This book discusses decidable and undecidable fragments of first-order logic. This book unifies and simplifies many of the previous proofs in the literature. The proofs of decidability are particularly interesting since the original proofs of these results were difficult but have been ...
M. Dieterle a, L. Witthauer a, F. Cividini b, S. Abt a, P. Achenbach b, P. Adlarson b, F. Afzal c, Z. Ahmed d, C.S. Akondi e, J.R.M. Annand f, H.J. Arends b, M. Bashkanov g, R. Beck c, M. Biroth b, N.S. Borisov h, A. Braghieri i, W.J. Briscoe j, S. Costanza i,1, C. Collicott k, A. Denig b, E.J. Downie b,j, P. Drexler b, M.I. Ferretti-Bondy b, S. Gardner f, S. Garni a, D.I. Glazier f,g, D. Glowa...
Bacillus subtilis responds to phosphate starvation stress by inducing the PhoP and SigB regulons. While the PhoP regulon provides a specific response to phosphate starvation stress, maximizing the acquisition of phosphate (P(i)) from the environment and reducing the cellular requirement for this essential nutrient, the SigB regulon provides nonspecific resistance to stress by protecting essenti...
برای دانشجویان و دانشمندان جوان ممکن است این سؤال مطرح گردد که برای دانشمند شدن، کیفیت یا کمیت مقالات یک فرد است که دارای اهمیت می‌باشد؟ شخصاً، بارها با این سؤال به هنگام برگزاری کارگاه‌های مقاله نویسی مواجه شد‌ه‌ام. Salthammer در انتهای سخن سردبیری خود، دو مثال بسیار جالب می‌آورد تا به روشنی به سؤال فوق پاسخ دهد. او در ابتدا به شیمیدان روسی به نام Yuri Struchkov اشاره می‌کند که در سال 1926 میل...
We prove a generalization of the Capelli identity. As an application we obtain an isomorphism of the Bethe subalgebras actions under the (glN , glM ) duality. To Yuri Manin on the occasion of 70-th birthday, with admiration.
The authors of the book are well known scientists in Russian arachnology. Yuri Marusik has written more than 250 articles and several monographs. As a result of his work the number of known species from this region has increased from 500 at the end of the 1970s to approximately 2000 at present. He has described more than 400 new species and genera as well as having compiled check-lists for the ...
Intensity distribution in an optical beam carrying a vortex (mesh) and its helical wave front (color surface).
A sequential algorithm just follows its instructions and thus cannot make a nondeterministic choice all by itself, but it can be instructed to solicit outside help to make a choice. Similarly, an object-oriented program cannot create a new object all by itself; a create-a-new-object command solicits outside help. These are but two examples of intrastep interaction of an algorithm with its envir...
In this paper we answer a question raised in [25], Sec. 4, by showing that the genus zero moduli operad {M0,n+1} can be endowed with natural descent data that allow it to be considered as the lift to SpecZ of an operad over F1. The relevant descent data are based on a notion of constructible sets and constructible functions over F1, which describes suitable differences of torifications with a p...
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