The results of the assessment dynamic behavior three-layer cylindrical shells circular and elliptical cross-sections under internal impulse loading are given. finite-element method was used to calculate indicators stress-strain state (SSS) such structures by NASTRAN software complex. values normal deflections stresses three forms intersection determined. A comparative analysis these with uneven...

Many theorists emphasize the role of an “internal model of the world” in directing intelligent behavior. Internal models predict the evolution of the environment by imitating its causal flow. They compute prediction signals and use these prediction signals to form novel associative chains. Formation of such predictive chains may contribute to reasoning and planning. Animals seem to learn and us...

Yeast ribosomal protein L30 binds to an asymmetric, purine-rich internal loop in its transcript to repress its own splicing and translation. The protein-bound form of the stem-internal loop-stem RNA is an example of a kink-turn RNA structural motif. Analysis of kink-turn motifs reveals that in (2 + 5) internal loops, the identities of five nucleotides are very important, while the remaining two...

We designed a simple laboratory experiment to study internal tides generation. We consider a steep continental shelf, for which the internal tide is shown to be emitted from the critical point, which is clearly amphidromic. We also discuss the dependence of the width of the emitted beam on the local curvature of topography and on viscosity. Finally we derive the form of the resulting internal t...

For agent-based modelling of collective phenomena, more and more agent models are employed that go beyond simple reactive behaviour. Such less trivial individual behaviours can be modelled either from an agent-internal perspective, in the form of direct (causal) temporal relations between internal states of the agent, or from an agent-external, behavioural perspective, in the form of more compl...

study on knowledge and attitude of internal and infectious wards nurses toward aids     zeighami mohammadi sh ٭ [1] , zeinali e [2]     received: august 27, 2011 accepted: october 7, 2011     abstract   background & aims : nurse's knowledge and attitudes related to aids is important as it affects their behavior , willingness to care, and quality of care . the aim of this study was to deter...

Homogeneous oligodeoxyguanylates incorporating small-molecule intercalator pyrene moieties in a 1,5 relationship form various structures of dimer, trimer, tetramer and internal hairpin form that are yellowish in color because of the intermolecular interactions between the pyrene units.