Ferromagnetic resonance has been used to investigate the inter-layer coupling in a bilayered manganite La(2-2x)Sr(1+2x)Mn(2)O(7) (x = 0.38) single crystal. The coexistence of a ferromagnetic resonance line and a paramagnetic resonance line was observed over a broad temperature range. Antiferromagnetic coupling between the adjacent MnO(2) bilayers can be identified from the observation of an opt...

Conformation-dependent properties of l-phenylalanine in neutral and radical cations have been studied by using density functional theory (DFT) with a new density functional M05-2X, which is applicable to molecular systems with nonconvalent interactions. Adiabatic and vertical ionization energies and charge distributions in the cationic conformers in addition to optimized geometrical structures ...

Let (X, d) be a nonempty metric space, and let (2X , Hd) be the hyperspace of all nonempty compact subsets of X with the Hausdorff metric. Let F :X → 2X be an ε-contractive map. A general condition is given that guarantees the existence of a periodic point of F (the theorem extends a result of Edelstein to multi-valued maps). The condition holds when X is compact; hence, F has a periodic point ...

Even-Odd Trees are a canonical tree-based number representation derived from a bijection between trees defined by the data type equation T = 1 + T ∗ T ∗ + T ∗ T ∗ and positive natural numbers seen as iterated applications of o(x) = 2x and i(x) = 2x+ 1 Starting from 1. This paper introduces purely functional arithmetic algorithms for operations on Even-Odd Trees. While within constant factors fr...

Since 1968, three spontaneous 4x melons (Cucumis melo L.) plants were discovered in our field or greenhouse plantings. Two were found in the cultivar Planters Jumbo and one in the virescent marker C879-52. Each of these 4x plants had rounded cotyledons, shorter internodes, thicker stems and leaves, more hairs, and smaller fruits, with larger stem and blossom scars, than their 2x counterparts. A...

Let k be any field, k(x, y) be the rational function field of two variables over k. Let σ be a k-automorphism of k(x, y) defined by σ(x) = −x(3x− 9y − y) (27x+ 2x + 9xy + 2xy − y) , σ(y) = −(3x+ y)(3x− 9y − y) 27x+ 2x + 9xy + 2xy − y . Theorem. The fixed field k(x, y) is rational (= purely transcendental) over k. Embodied in the proof of the above theorem are several general guidelines for solv...

Contrary to conventional wisdom, our purified La 2-2x Sr 1+2x Mn2O7 crystals exhibit CE-type orbital and charge order as the low-temperature ground state for a hole doping level h=0.5. For small deviations from h=0.5, the high-temperature CE phase is replaced at low temperatures by an A-type antiferromagnet without coexistence. Larger deviations result in a lack of CE order at any temperature. ...

the biogeography of genus linaria was revealed by the available chromosome counts from all over the world. chromosome numbers of 92 taxa of the genus linaria are included in an on-line karyological database. furthermore, information about chromosome numbers taken from 374 literature sources was used in this paper. each database record includes name of taxon, data on chromosome and data on the o...