Let Ω be a complete graph on an even number n = 2m of vertices V = V(Ω) = {ω1, . . . , ωn} and assume that K = {k1, . . . , kn−1} is a 1-factorization of Ω. Identify every k ∈ K with the fixed point free involution of Sym(V) which interchanges the ends of every edge in k and set GK = 〈K〉. Then K is said to be self-invariant if Kk = K for all k ∈ K. Heiss [Hei] studied self-invariant 1-factoriza...

We prove that if the direct product of two connected bipartite graphs has isomorphic components, then one of the factors admits an automorphism that interchanges its partite sets. This proves a conjecture made by Jha, Klavžar and Zmazek in 1997 [P. Jha, S. Klavzar, B. Zmazek, Isomorphic components of Kronecker product of bipartite graphs, Discussiones Mathematicae Graph Theory 17 (1997) 302–308...

We consider the homeomorphisms of the compact annulus A = S1 × [−1, 1] isotopic to the symmetry SA which interchanges the two boundary components. We prove that if such a homeomorphism is, in some sense, conservative and twisted, then it possesses a periodic orbit of period exactly two. This can be regarded as a counterpart of the Poincaré-Birkhoff theorem in the isotopy class of SA.

An isometric immersion f : Mn → M̃n from a Riemannian nmanifold Mn into a Kähler n-manifold M̃n is called Lagrangian if the complex structure J of the ambient manifold M̃n interchanges each tangent space of Mn with the corresponding normal space. In this paper, we completely classify spherical Lagrangian submanifolds in complex Euclidean spaces. In this paper, we also provide two corresponding cla...

As the world becomes more urbanized, there is a strong need for urban public transport to provide sustainable alternative solutions against private-vehicle usage. However, opportunities seamless journeys through are still limited and properly designed operated interchanges vital. The present paper investigates perceptions users' level of satisfaction when using New Railway Station Thessaloniki ...

Despite commonly being used as the hosts for gases, solvents and other neutral molecules, metal-organic frameworks (MOFs) have received recent attention supramolecular anion binding with a broad range of environmental biological applications. The review summarizes development this area, anion-binding MOFs categorized based on different design strategies including cationic anion-exchange capabil...

The present article involves in evaluation and engineering judgment of various geometric configurations for highway interchanges by considering substantial parameters over the discretion process. The geometric, economical and architectural criteria as the fundamental indicators are divided into related sub-indicators and the total combinations of such sub-elements from the general criterion for...

Antioxidant activity of Berry (Morus alba var. nigra) was investigated. For superoxide anion radical assay, the superoxide anion radicals were generated by a pyrogallol auto oxidation system, Nitric oxide radical inhibition by the use of Griess Illosvoy reaction and reducing power was determined according to the Oyaizu method. At least this sample was represented a potential antioxidant capacit...

The protein family of anion channel (ClC) constitute a family of transmembrane trnsporters that either function as anion channel or as H+/anion exchanger. The expression of three genes of AtClCa, AtClCb and AtClCd in the model plant Arabidopsis thaliana were silenced by a T-DNA insertion . When the pH of the medium was slightly acidic the length of the primary root of plants with a disrupted At...