We reconsider the problem of stability of the triangular Lagrangian equilibria of the restricted problem of three bodies.We consider in particular the Sun–Jupiter model and the Trojan asteroids in the neighbourhood of the point L4. In the spirit of Nekhoroshev’s theory on stability over exponentially large times, we are able to prove that stability over the age of the universe is guaranteed on ...

The big bang-big crunch (BB-BC) algorithm is a popular metaheuristic optimization technique proposed based on one of the theories for the evolution of the universe. The algorithm utilizes a two-phase search mechanism: big-bang phase and big-crunch phase. In the big-bang phase the concept of energy dissipation is considered to produce disorder and randomness in the candidate population while in ...

the space structure that governs cities has depended on several corresponding relations and various factors which consist of: population, job and activities, transportation patterns, urban sub-structures, various services and etc that always were connected to each other and have formed its space structure. but since these relations are more complicated in big cities, the importance of paying at...

This essay traces Hegel's conceptualisation of “the spirit and the letter”, from period his early theological writings to that Science Logic, with particular reference correspondence. dialectic, for Hegel, concerns realisation truth or “spirit” something specificity fixity its details – “letter”. It also concerns, then, freedom interpret in spite apparent authority any supposed original meaning...

It is often argued that both Luke and Paul regard the presence of the Spirit as essentially the same as the presence of the kingdom of God. This is true for Paul, who understands the Spirit as the means by which all may participate in the blessings of the kingdom (that is, the Spirit is the totality of the blessings of the kingdom). However, does such an assessment accurately reflect the Lukan ...