Relations between Elements r2-r

Strong energy condition in R+R2 gravity.

In this paper, we study Raychaudhuri's equation in the background of R + βR 2 gravity with a phenomenological matter (ρ ∝ a(t) −n). We conclude that even though the Strong Energy Condition (S.E.C.) for Einstein's gravity, which guarantees singularity, is n ≥ 2 for ρ ∝ a(t) −n , a perturbative analysis of Raychaudhuri's equation in the background of R+βR 2 gravity reveals that the big bang singu...

The Role of Constructive Elements of Iran's Identity in Relations between Iran and Russia

Along the history, relations between Iran and Russia always faced with great changes and transitions and always, the foundation of these relations have been on the base of political, security and military and sometimes economical affairs. Iran and its people have special identity elements like: Persian language, Shiite Islamism, nationalism, regional hegemonies, anti-foreignism and etc, that so...

Topographical Relations between Elements of Control Systems in Maize

On Relations between Arrays of Processing Elements of Different Dimensionality

We are examining the power of d-dimensional arrays of processing elements in view of a special kind of structural complexity. In particular simulation techniques are shown, which allow to reduce the dimension at an increased cost of time only. Conversely, it is not possible to regain the speed by increasing the dimension. Moreover, we demonstrate that increasing the computation time (just by a ...

Sequence relationship of retrotransposable elements R1 and R2 within and between divergent insect species.

R1 and R2 are retrotransposable elements that integrate at specific sites in the 28S ribosomal RNA (rRNA) genes of Bombyx mori and Drosophila melanogaster. We have previously shown that most insect species contain insertions in their 28S genes at the R1 and/or R2 site. We have sequenced the 3' half of R1 and R2 elements from three additional insect species: the fungus gnat, Sciara coprophila (D...