Density dependence of resonance broadening and shadowing effects in nuclear photoabsorption

Medium effects as a function of the mass number $A$ are studied in the total photonuclear cross section from the $\Delta$-resonance region up to the region where shadowing effects are known to exist. A consistent picture is obtained by simply assuming a density dependence of the different mechanisms of resonance broadening and shadowing. The $\Delta$-mass shift is found to increase with $A$.Comment: 7 pages, LaTeX, 2 figures available from the author

Quantum parallel dense coding of optical images

We propose quantum dense coding protocol for optical images. This protocol extends the earlier proposed dense coding scheme for continuous variables [S.L.Braunstein and H.J.Kimble, Phys.Rev.A 61, 042302 (2000)] to an essentially multimode in space and time optical quantum communication channel. This new scheme allows, in particular, for parallel dense coding of non-stationary optical images. Similar to some other quantum dense coding protocols, our scheme exploits the possibility of sending a classical message through only one of the two entangled spatially-multimode beams, using the other one as a reference system. We evaluate the Shannon mutual information for our protocol and find that it is superior to the standard quantum limit. Finally, we show how to optimize the performance of our scheme as a function of the spatio-temporal parameters of the multimode entangled light and of the input images.Comment: 15 pages, 4 figures, RevTeX4. Submitted to the Special Issue on Quantum Imaging in Journal of Modern Optic

Aspects of the concept "computer literacy" in the conditions of higher professional pedagogical education

For young professionals information and communication technologies open access to knowledge, provide completely new opportunities for the acquisition of professional knowledge and creativity, and they are introduced to the values of world culture. Therefore, the formation of the information culture of the younger generation is a very important task

THE ORGANIZATION OF STUDENTS’ RESEARCH ACTIVITY IN HIGHER EDUCATION INSTITUTIONS IN THE CONDITIONS OF REALIZATION OF FEDERAL STATE EDUCATIONAL STANDARD AND PROFESSIONAL STANDARDS

Статья посвящена процессу организации научно-исследовательской деятельности студентов в условиях реализации федерального государственного образовательного стандарта и профессиональных стандартов. Авторы анализируют работу студенческих научных обществ, выделяют основные тенденции развития и основные проблемыArticle is devoted to process of the organization of students’ research activity in the conditions of realization of federal state educational standard and professional standards. Authors analyze work of students' scientific societies; allocate top trends of development and the main problem